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Sensors and Instruments
product line - a junction box
Junction BOX
FOUNDATION FIELDBUS
PROFIBUS PA
Introduction
This catalog contains information about the Profibus PA and Foundation Fieldbus network and has the main goal to show the
junction box line for the field instrument. The junction box in this catalog can be passive, with protection against short-circuit or
intrinsic safety barrier to protection for up to 8 Ex I field equipment and are available in plastic or metallic material.
Profibus PA and Foundation Fieldbus H1
With fieldbus technology, users can have several benefits offered by digital technology and also they can take advantage and get
optimization and cost savings with the network distribution bringing safety and reliability in the operations.
For the success of any automation and control network, the installation should be done carefully and within the specifications.
Precautions and practices are required when designing, installing or testing Profibus PA networks and also adopted for the
Foundation Fiedbus H1 network, since the physical layer of these protocols are defined by the same international standard
IEC61158-2.
Physical Layer
The Profibus PA and Foundation Fieldbus H1 protocol is a bi-directional digital communication that allows the network
interconnection of several equipment in the field, doing acquisition execution and functions, as well as the procedures and
monitoring stations (IHMs) through supervisor softwares. The protocol is based on OSI standard, which has the following layers:
Physical Layer, Communication Stack and User Application. We can mention the management in a global way with the applications
and advent models based on Function Blocks and Device Descriptions, which recently was standardized according to IEC, the EDDL
concept including HART, Foundation Fieldbus and Profibus.
The Physical Layer is defined by international standards (IEC, ISA). It receives messages from the Communication Stack and
converts them into physical signals in the middle of the fieldbus transmission including and removing preambles, delimiters of
beginning and end of messages.
The physical layer is based on the IEC61158-2, we can cite the following features:
• Data transfer using Manchester code with transmission rate 31.25Kbit / s
• For a full signal communication, each product must have at least 9 volts. The H1 physical layer allows that the field
equipment is powered by bus. The same pair of wires that feed the equipment also provides the communication signal.
• Maximum length is 1900m (trunk and spurs) without repeaters.
• Using up to 4 repeaters, the maximum length can be 9.5 km.
• Non safety buses in Profibus PA and no external power for trunk line can support the communication of 2 to 32
connected field equipment.
• Profibus PA trunk must be able to support various equipments in accordance with intrinsic safety standards and without
external power:
- Explosion Group IIC: 9 equipments
- Explosion Group IIB: 23 equipments
Note: It can connect more equipments than the specified, depending on the equipment consumption, the power supply, the
intrinsic safety barrier characteristics and the FISCO model.
• No interrupting trunk line in operation while connection and disconnection equipments on the spurs.
• Topology: bus, tree, star or mixed (a combination of all supported technologies).
The FISCO model has the following features:
a) a single active element (power supply) on the Fieldbus, located in non-classified area;
b) the others equipments are in classified area;
c) each field equipment must have minimum consumption of 10mA;
d) in Ex ia areas the maximum bus length must be 1000m and 1000m in Ex ib areas;
e) For the cable (no cabling restriction until 1000) must take the following parameters:
- R´:15 ... 150 Ohm/Km
- L´: 0.4 ... 1 mH/Km
- C´: 80 ... 200 nF/Km
Cable type A: 0.8mm2(AWG18) (*)
f) Termination:
a. R = 90 ... 100 ohms
b. C = 0 ... 2.2 µF.
2
Sense
The FISCO concept was optimized allowing a greater number of the field equipments, according to the bus length, taking into
account the cable variation parameters (R, ‘L’, C ‘) and using terminators. The concept is in accordance with gases categories and
groups that make a simple evaluation of the complete installation involving intrinsic safety. This increased the current capability per
segment and the evaluation for users became easier. Furthermore, when purchasing certified products they don't have to worry
with calculations, even changing them in operation.
H1 - 31.25 Kbit/s Voltage Mode
1 Bit Time
15 to 20mA p-p
Receiving
Voltage
Device Current
Fieldbus Device
Transmitting
CLOCK
1
DATA
0
0.75 to 1.0V p-p
+
100 Ohm
1
1
0
0
MANCHESTER
BIPHASE-L
ENCODING
100 Ohm
Power
Supply
C
0
C
Fieldbus Network
-
Terminator
C is sized to pass 31.25Kbit/s
Fieldbus signal in voltage mode
Manchester code
The data transmission of a field equipment is typically 10mA in 31.25Kbit / s at an equivalent resistive load of 50 Ohms creating a
modulated voltage signal in 1.0 Volt peak to peak. The power supply can provide 9 to 32 VDC, but in secure applications (IS) it´s
necessary to follow the intrinsic safety barriers requirements.
USER
APPLICATION
v
COMMUNICATION
“STACK”
PHYSICAL LAYER
t
Fieldbus Media
(wire)
31.25 Kbit/s Voltage mode
The total cable length is the sum of the trunk length (bus master) and all the Spurs (larger than 1m) which the maximum length of
the cable type A (*) is the 1900m in unsafe areas. In safe areas the maximum length is 1000 m using cable type A and the spurs
cannot exceed 30m.
Sense
3
Topology
We can have the following topologies below, remembering that these examples are for Profibus PA Network, but for H1 Network
they also apply to the Foundation Fieldbus: star, line and point-to-point. Normally, in practice is used a mixed topology:
H1 - 31.25 Kbit/s Voltage Mode
1 Bit Time
15 to 20mA p-p
Receiving
Voltage
Device Current
Fieldbus Device
Transmitting
CLOCK
1
DATA
0
USER
APPLICATION
0.75 to 1.0V p-p
v
COMMUNICATION
“STACK”
+
100 Ohm
100 Ohm
Power
Supply
C
0
1
1
0
0
MANCHESTER
BIPHASE-L
ENCODING
PHYSICAL LAYER
C
-
Terminator
C is sized to pass 31.25Kbit/s
Fieldbus Network
t
Fieldbus Media
(wire)
Star
Line
Point-to-point
Network Cables
Several cable types can be used (it is recommended to use the twisted-pair with the shield). The maximum length can change
depending on the diameter and others cable components. Below we show four cable types, but there are more options. No special
cable type is required. Usually the cables that connect the instruments can be used for the trunk line. The network cable for
Profibus PA and Foundation Fieldbus are produced by several manufacturers becoming easy the choice.
Cable Type A
Cable options
Pair
Diameter
Max. length
(m)
Type
single
0.75mm2
1900
A
mult
0.32mm2
1200
B
mult
0.13mm2
400
C
mult
1.25mm2
200
D
-
Zo @ 31,25KHz = 100 Ohm ± 20%
Max. Attenuation @ 39KHz = 3dB/ Km
Max.capacitance unbalance to earth =
2 nF/ Km
Max. DC resistance per conductor = 22 Ω/ Km
Max. propagation delay change 7.8 - 39KHz = 1.7 µs/ Km
2
Conductor transversal area: 0.75mm .
Note: only the shield must be grounded, never the communication wires. If the cable has no shielding wire, it should be inside a
metal conduit that works as a shield.
Spurs
A spur is a branch off the trunk and can vary in length between 1 and 120m. Spurs length is basically independent of the cable type
and the total length can´t not exceeded the specifications, but depends on the amount of equipment connected in it. Never connect
more than four devices on the spurs. The spurs are used to connect the equipments to the trunk so they can be removed without
interrupting the network operation.
Equipment x Spur length
The maximum segment length is the sum of the trunks and spurs lengths and the lengths less than 1 m are not considered spurs.
The amount of spurs and the number of equipment should be in accordance with the table below.
Number of
Spurs
1
equipment
amount of the equipments
2
3
equipments
equipments
4
equipaments
25 - 32
1m
1m
1m
1m
19 - 24
30 m
1m
1m
1m
15 - 18
60 m
30 m
1m
1m
13 - 14
90 m
60 m
30 m
1m
1 - 12
120 m
90 m
60 m
30 m
Terminador
The terminator is designed to
match the network impedance
and for this must be installed on
all edges of trunk line, so the
reflection
effect
will
be
eliminated and the network
works normally.
Note 1: For Ex installations you should not exceed the 9 equipments in group IIC and the length
should be up to 30m with one equipment per spur and the consumption less than 110 mA.
Note 2: It is important to pay attention to the spur length when using the star topology, since
the Spurs in this case are often longer when compared with the bus line topology.
4
Sense
MD - Passive Junction Box - General Purpose
Provide a simple and secure way the distribution of the points for the network of up
to four equipments. The case is plastic material and has internal terminal for
connecting the spurs allowing the field installation with protection against liquid
penetration (IP66).
The input and output network is connected in a dual plug-in connector, allowing
the distributor board disconnection without interrupting the rest of the network,
being de-energized only their spurs.
Junction box for general purpose
2 or 4 points available
Network
Passive junction box only for spurs of the
network trunk line
Points
General Purpose
2
PA-MD-2D
4
PA-MD-4D
2
FF-MD-2D
4
FF-MD-4D
Profibus PA
General purpose module, plastic house
Internal network terminator
Foundation Fieldbus
Mechanical Dimensions
Module internal view
FD - Passive Junction Box - General Purpose
Note: also available for connector version
Provide a simple and secure way the distribution points for a network of up to
eight equipments. The case is in plastic or metal material with terminals for
spur connections allowing the field installation with protection against liquid
penetration (IP66).
The input and output network connector is a dual plug-in, allowing the
distributor board disconnection without interrupting the rest of the network,
being de-energized only their spurs.
4, 6 or 8 points available
General purpose in plastic or metallic case
Module internal view
Passive junction box only for spurs.
Sense
Junction box for general purpose
Network
Plastic
Profibus PA
Metallic
Foundation
Fieldbus
Plastic
Metallic
general
purpose
general
purpose
FD4
FD6
FD8
PA-FD-4D
PA-FD-6D
PA-FD-8D
PA-FDM-4D
PA-FDM-6D
PA-FDM-8D
FF-FD-4D
FF-FD-6D
FF-FD-8D
FF-FDM-4D
FF-FDM-6D
FF-FDM-8D
5
Specifications
PROFIBUS PA
Plastic
Features
Metallic
FOUNDATION FIELDBUS
Plastic
Metallic
2 points MD model
PA-MD-2D
FF-MD-2D
4 points MD model
PA-MD-4D
FF-MD-4D
4 points FD model
PA-FD-4D
PA-FDM-4D
FF-FD-4D
FF-FDM-4D
6 points FD model
PA-FD-6D
PA-FDM-6D
FF-FD-6D
FF-FDM-6D
8 points FD model
PA-FD-8D
PA-FDM-8D
FF-FD-8D
FF-FDM-8D
Signaling power
no
no
Short electronic protection for spurs
no
no
Terminator
yes
yes
Terminator signaling
no
no
Ex protection
-
-
Fault monitoring
-
-
Network connection
3 ways double plug-in terminal 2.5 mm²
3 ways double plug-in terminal 2.5 mm²
Cable type
Profibus PA cable
Foundation Fieldbus cable
Input/Output for trunk cable
cable gland PG16
cable gland PG16
Cable disconnection
allowed without interrupting the rest of the network allowed without interrupting the rest of the network
Number of spurs
2, 4, 6 or 8
2, 4, 6 or 8
Spur connections
3 ways plug-in terminal 2.5 mm²
3 ways plug-in terminal 2.5 mm²
Housing material
Plastic (MD and FD) aluminum (FDM)
Plastic (MD and FD) aluminum (FDM)
Mounting cover
4 screws with rubber gasket
4 screws with rubber gasket
Protection class
IP 66
IP 66
Operation temperature
-20°C to +55°C
-20°C to +55°C
Weight
Approx. 1600g
Approx. 1600g
Accessories included
terminal, isolator tube, cover, cable gland
terminal, isolator tube, cover, cable gland
Mechanical Dimensions
Topology
PLC
Dimensions - FD
FD
A
(mm)
B
(mm)
C
(mm)
Plastic
200
120
57,5
Metallic
200
120
65
Segment Protector
General Purpose
C
Segment Protector
General Purpose
Fieldbus or
Profibus PA
A
* Dimensions for 4, 6 and 8 points
models.
6
B
8 points
Sense
MD - Segment Protector - General Purpose
Segment Protectors are fieldbus distributor which incorporate electronic protection
against short-circuit for each network segment and its spurs. They are available with 2
or 4 points of derivations and mounted in plastic box.
All versions are mounted with cable gland and double plug-in connector for the trunk line
connection and plug-in connectors for the derivations (Spurs).
Electronic Protection and Network terminator
The network modules for Profibus PA and Foundation Fieldbus have
electronic protection against short circuit in each spur.
FF and PA modules also incorporate the network terminator and to enable it
turn on a dipswitch located inside the module.
4 or 6 points available
general purpose in plastic house
Protection against short-circuit
Network terminator inside the
module
Segment Protector for general purpose
Network
Points
General
Purpose
2
PA-MD-2P
4
PA-MD-4P
2
FF-MD-2P
4
FF-MD-4P
Profibus PA
Foundation Fieldbus
Mechanical Dimensions
Module internal view
FD - Segment Protector - general purpose
Segment Protectors are fieldbus distributor which incorporate electronic
Note: also available for connector version
protection against short-circuit and overload for each spur. They are available
with 4, 6 or 8 derivation points and can be mounted in plastic or metal box.They
have double plug-in connector for trunk line connection and plug-in connectors for
the derivations (Spurs). All versions are mounted with cable glands.
Electronic Protection and Network terminator
Module internal view
The network modules for Profibus PA and Foundation Fieldbus have Electronic
Protection against short-circuit in each spurs.
FF and PA modules also incorporate the network terminator for switching it only
turn on the dipswitch located inside the module.
Sense
Segment Protector general purpose
Rede
Plastic
Profibus PA
Metallic
Foundation
Fieldbus
Plastic
Metallic
general
purpose
general
purpose
FD4
FD6
FD8
PA-FD-4P
PA-FD-6P
PA-FD-8P
PA-FDM-4P
PA-FDM-6P
PA-FDM-8P
FF-FD-4P
FF-FD-6P
FF-FD-8P
FF-FDM-4P
FF-FDM-6P
FF-FDM-8P
7
Specifications
Features
PROFIBUS PA
FOUNDATION FIELDBUS
House
Plastic
MD 2 points model
PA-MD-2P
FF-MD-2P
MD 4 points model
PA-MD-4P
FF-MD-4P
FD 4 points model
PA-FD-4P
PA-FDM-4P
FF-FDM-4P
FF-FDM-4P
FD 6 points model
PA-FD-6P
PA-FDM-6P
FF-FDM-6P
FF-FDM-6P
FD 8 points model
PA-FD-8P
PA-FDM-8P
FF-FDM-8P
FF-FDM-8P
Power supply
9 to 32 Vdc
9 to 32 Vdc
Current per channel
40 mA ± 5%
40 mA ± 5%
Internal signaling
red led
red led
Electronic Protection for short-circuit
in spurs
yes
yes
Terminator
yes
yes
Terminator signaling
no
no
Ex protection
-
-
Consumption without load
fieldbus distributor: 2points: < 12mA / 4 points: < 18mA / 6 points: < 25mA / 8 points: < 38mA
Metallic
Fault monitoring
Plastic
Metallic
Red Led blinking : short-circuit in the spurs
Network connection
double 3 ways plug-in terminal 2.5 mm²
double 3 ways plug-in terminal 2.5 mm²
Cable type
Profibus PA cable
Foundation Fieldbus cable
Input/Output for trunk cable
cable gland PG16
cable gland PG16
cable desconnexion
allowed without interrupting the rest of the network allowed without interrupting the rest of the network
Number of spurs
2, 4, 6 or 8
2, 4, 6 or 8
Spur connections
3 ways plug-in terminal 2.5 mm²
3 ways plug-in terminal 2.5 mm²
Housing material
Plastic (MD e FD) aluminum (FDM)
Plastic (MD e FD) aluminum (FDM)
Mounting cover
4 screws with rubber gasket
4 screws with rubber gasket
Protection class
IP 66
IP 66
Operation temperature
-20°C to +55°C
-20°C to +55°C
Weight
Aprox. 1600g
Aprox. 1600g
Accessories included
terminal, isolator tube, cover, cable gland
terminal, isolator tube, cover, cable gland
Mechanical Dimensions
Topology
PLC
Tabela de Dimensões - FD
FD
A
(mm)
B
(mm)
C
(mm)
Plastic
200
120
57.5
Protetor de Segmento
Uso Geral
25
Protetor de Segmento
Uso Geral
Fieldbus ou
C
Profibus PA
A
B
Metallic
200
120
65
* Dimensions for 4 and 6 points
models.
8
Protector 8 points
Sense
MD - Segment Protector Increased Safety Ex e
Segment Protectors are fieldbus distributors which incorporate electronic protection
against short-circuit for each network segment and its spurs. They are available with 2
or 4 points of derivations and are mounted in a plastic box.
All versions are mounted with cable glands, double plug-in connector for trunk line
connection and plug-in connectors for the derivations (Spurs).
Electronic Protection and Network terminator
Segment Protector Ex e
The network modules for Profibus PA and Foundation Fieldbus have
Electronic Protection against short-circuit in each spurs.
FF and PA modules also incorporate the network terminator for switching it
only turn on the dip switch located inside the module.
4 or 6 points available
Ex e model in plastic house
Short-circuit protection
Switchable integrated Network
terminator
Network
Points
General
Purpose
2
PA-MD-2P-Exe
4
PA-MD-4P-Exe
2
FF-MD-2P-Exe
4
FF-MD-4P-Exe
Profibus PA
Foundation Fieldbus
Mechanical Dimensions
Module internal view
4
3
2
1
FD - Segment Protector Increased Safety Ex e
Note: also available for connector version
Segment Protectors are fieldbus distributors which incorporate electronic
protection against short-circuit for each network segment and its spurs. They are
available with 4, 6 or 8 derivation points and can be mounted in a plastic or metal
box. All models are mounted with cable glands, double plug-in connector for the
trunk line cable and plug-in connectors for the derivations (Spurs).
Electronic Protection and Network terminator
Module internal view
The network modules for Profibus PA and Foundation Fieldbus have Electronic
Protection against short-circuit in the spurs.
FF and PA modules also incorporate the network terminator for switching it turns
on the dip switch located inside the module.
Sense
Segment Protector Ex e
Network
Plastic
Profibus PA
FD6
FD8
PA-FD-4P-Exe
PA-FD-6P-Exe
PA-FD-8P-Exe
PA-FDM-4P-Exe
PA-FDM-6P-Exe
PA-FDM-8P-Exe
FF-FD-4P-Exe
FF-FD-6P-Exe
FF-FD-8P-Exe
FF-FDM-4P-Exe
FF-FDM-6P-Exe
FF-FDM-8P-Exe
Ex e
Metallic
Foundation
Fieldbus
FD4
Plastic
Ex e
Metallic
9
Specifications
PROFIBUS PA
Plastic
Metallic
FOUNDATION FIELDBUS
Plastic
Metallic
MD 2 points model
PA-MD-2P-Exe
-
FF-MD-2P-Exe
-
MD 4 points model
PA-MD-4P-Exe
-
FF-MD-4P-Exe
-
FD 4 points model
PA-FD-4P-Exe
PA-FDM-4P-Exe
FF-FD-4P-Exe
FF-FDM-4P-Exe
FD 6 points model
PA-FD-6P-Exe
PA-FDM-6P-Exe
FF-FD-6P-Exe
FF-FDM-6P-Exe
FD 8 points model
PA-FD-8P-Exe
PA-FDM-8P-Exe
FF-FD-8P-Exe
FF-FDM-8P-Exe
Power supply
9 to 32 Vdc
9 to 32 Vdc
Current per channel
40 mA ± 5%
40 mA ± 5%
Internal indicator
red led
red led
Short Electronic Protection in the
spurs
yes
yes
Terminator
yes
yes
Terminator signaling
não
não
Ex protection
Ex e
Ex e
Consumption without load
fieldbus distributor 2 points: < 12mA / 4 points: < 18mA / 6 points: < 25mA / 8 points: < 38mA
Fault monitoring
Red led blinking: short-circuit in the spurs
Network connection
double 3 ways plug-in terminal 2.5 mm²
double 3 ways plug-in terminal 2.5 mm²
Cable type
Profibus PA cable
Foundation Fieldbus cable
Input/Output for trunk cable
cable gland PG16
cable gland PG16
Cable desconnexion
allowed without interrupting the rest of the network allowed without interrupting the rest of the network
Number of spurs
2, 4, 6 or 8
2, 4, 6 or 8
Spur connections
3 ways plug-in terminal 2.5 mm²
3 ways plug-in terminal 2.5 mm²
Housing material
Plastic (MD e FD) aluminum (FD)
Plastic (MD e FD) aluminum (FD)
Mounting cover
4 screws with rubber gasket
4 screws with rubber gasket
Protection class
IP 66
IP 66
Operation temperature
-20°C to +55°C
-20°C to +55°C
Weight
Aprox. 1600g
Aprox. 1600g
Accessories included
terminal, isolator tube, cover, cable gland
terminal, isolator tube, cover, cable gland
Mechanical Dimensions
Topology
PLC
Tabela de Dimensões - FD
FD
A
(mm)
B
(mm)
C
(mm)
Plastic
200
120
91
Metallic
200
120
65
Segment Protector
Ex e
C
Segment Protector
Ex e
Fieldbus or
Profibus PA
A
* Dimensions for 4 and 6 points
models.
10
B
Protector 8 points
Sense
MD - Passive Derivator Ex i
Provide in a simple and secure way the network equipment connection of up to
four points using a plastic box with internal terminal connections to spurs that
allows the installation in field with protection against liquid penetration (IP66).
The input and output connector of the trunk line is a double plug-in connector
allowing the distributor board disconnection without interrupting the rest of the
network, being de-energized only their spurs.
Intrinsic safety modules
4 or 6 points available
Network
Derivators for hazardous areas
Intrinsic safety modules in plastic house
Spur points
Modules Ex i
2
PA-MD-2D-Exi
4
PA-MD-4D-Exi
2
FF-MD-2D-Exi
4
FF-MD-4D-Exi
Profibus PA
Internal network terminator
Foundation Fieldbus
Mechanical Dimensions
Module internal view
57,5
24
16
26
0
80
FD - Passive Derivators Ex i
Note: also available for connector version
Provide in a simply and secure way the network equipment connection of up to
eight equipments, using a plastic or metallic box with internal connection
terminals to spurs allowing the installation in field with protection against liquid
penetration (IP66).
The input and output connector of the trunk line is a double plug-in connector
allowing the distributor board disconnection without interrupting the rest of the
Network being only their spurs de-energized.
4, 6 or 8 points available
Intrinsic safety module in plastic or metallic house
Module internal view
Passive derivators only for spurs.
Sense
Intrinsic safety modules
Network
Plastic
Profibus PA
FD6
FD8
PA-FD-4D-Exi
PA-FD-6D-Exi
PA-FD-8D-Exi
PA-FDM-4D-Exi
PA-FDM-6D-Exi
PA-FDM-8D-Exi
FF-FD-4D-Exi
FF-FD-6D-Exi
FF-FD-8D-Exi
FF-FDM-4D-Exi
FF-FDM-6D-Exi
FF-FDM-8D-Exi
Ex i
Metallic
Foundation
Fieldbus
FD4
Plastic
Ex i
Metallic
11
Specifications
PROFIBUS PA
Plastic
Metallic
FOUNDATION FIELDBUS
Plastic
Metallic
Modelos MD 2 points
PA-MD-2D-Exi
-
FF-MD-2D-Exi
-
Modelos MD 4 points
PA-MD-4D-Exi
-
FF-MD-4D-Exi
-
FD 4 points model
PA-FDM-4D-Exi
PA-FDM-4D-Exi
FF-FD-4D-Exi
FF-FDM-4D-Exi
FD 6 points model
PA-FDM-6D-Exi
PA-FDM-6D-Exi
FF-FD-6D-Exi
FF-FDM-6D-Exi
FD 8 points model
PA-FDM-8D-Exi
PA-FDM-8D-Exi
FF-FD-8D-Exi
FF-FDM-8D-Exi
Function
junction box for network
junction box for network
Power supply indicator
no
no
Short Electronic Protection in the
spurs
no
no
Terminator
yes
yes
Terminator signaling
no
no
Ex protection
Ex i
Ex i
Fault monitoring
-
-
Network connection
3 ways double plug-in terminal 2.5 mm²
3 ways double plug-in terminal 2.5 mm²
Cable type
PA cable
Fieldbus cable
Input/Output for trunk cable
cable gland PG16
cable gland PG16
cable desconnexion
allowed without interrupting the rest of the network allowed without interrupting the rest of the network
Number of spurs
2, 4, 6 or 8
2, 4, 6 or 8
Spur connections
3 ways plug-in terminal 2.5 mm²
3 ways plug-in terminal 2.5 mm²
Housing material
Plastic (MD e FD) aluminum (FD)
Plastic (MD e FD) aluminum (FD)
Mounting cover
4 screws with rubber gasket
4 screws with rubber gasket
Protection class
IP 66
IP 66
Operation temperature
-20°C to +55°C
-20°C to +55°C
Weight
Aprox. 1600g
Aprox. 1600g
Accessories included
terminal, isolator tube, cover, cable gland
terminal, isolator tube, cover, cable gland
Mechanical Dimensions
Topology
SDCD
Tabela de Dimensões - FD
25
FD
A
(mm)
B
(mm)
C
(mm)
Exi
Barrier
Ex i Derivator
C
Ex i Derivator
Fieldbus or
Profibus PA
Ex i
A
Plastic
200
120
91
Metallic
200
120
65
* dimension for 4 and 6 points
models.
12
B
Ex i
Ex i
Ex i
8 points
Ex i field equipments
Ex i field equipments
Sense
Field Barrier Exi
It´s a fieldbus distributor that integrates an intrinsic safety barrier for
each individual output (Spur), providing the signaling and communication
signal to each field instrument connected in the spur.
Manufactured with high technology the field barrier allows the
equipments disconnection in the spurs with the bus line energized.
Available for Profibus PA and Foundation Fieldbus the barrier
incorporates an intrinsical safe protection to each individual spur
available in 2, 4, 6 or 8 points of derivations.
Total Security
Módulos MD
The power sent to the field instrument is limited by the intrinsic safety barrier that
provides a smart protection against short-circuit that turns off the output when the
fault is detected and maintained the spur output current to a minimum value no
contributing to the communication collapse in the trunk line due to the high current
consumption.
I (mA)
Features
I (mA)
40
40
12
12
7
7
Módulos FD
Connectivity with safety and practicality
Available in Plastic or Metallic material
with 2, 4, 6 or 8 points
One barrier required for each derivation
point (spur).
Modules certified for intrinsic safety
Short-Circuit
Short-Circuit
t (s)
Sense field barrier
* Device
t (s)
Product offer in the market
connected to spur with 12mA current consumption
Intrinsic Safety Definitions
Used in explosive atmospheres, zones 1
and 2
Fieldbus distributors
spurs) in all models
(network
and
The intrinsic safety definition is a representative prevention concept of the ignition by power limiting of the incoming bus supply as
well as installation components in the field.
The working principle is based on manipulating and storing electric low-power incapable of producing a detonation of the explosive
atmosphere due to heating effects or electrical sparks.
In general it can be applied to several equipments and instrumentation systems, and the electric power only can be controlled at
low levels in instruments such as electronic current transmitters, pneumatic converters, limit switches, signaling, etc. The basic
principle of the intrinsic safety is handle and storage low energy, so the circuit installed in the safe area never has enough energy
rated (manipulated or stored) capable of causing ignition in the potentially explosive atmosphere. The great advantage of intrinsic
safety is to allow the instruments disconnection even energized.
Topology in Safe Network (Ex i)
PLC
Barrier Ex i
Trunk line Ex e
Barrier Ex i
Fieldbus or
Profibus PA
Ex i
Intrinsic Safety
Spurs( Ex i)
Ex i
Ex i
Field Instruments Ex i
Sense
Ex i
Field Instruments Ex i
13
MD - Field Barrier Exi
The MD field barrier is fieldbus distributor which incorporates an intrinsic
safety barrier for each spur. It´s available with 2 points of derivation in a
plastic house.
The input and output connector of the line trunk is a double plug-in terminal
block, allowing the distributor board disconnection without interrupting the
rest of the network being only their spurs de-energized (spurs).
Module internal view
Intrinsic Safety Barrier
Terminator
Modelo
Profibus PA
PA-MD-2B-Exei
Foundation Fieldbus
FF-MD-2B-Exei
Mechanical Dimensions
2
24
OUT
60
networl plug-in terminal
spur plug-in
terminal
Network
IN
1
Allow the exchange of field equipment
with the network working.
26
16
0
82
Specifications
PROFIBUS PA
FOUNDATION FIELDBUS
Function
Intrinsic Safety
Intrinsic Safety
Operating voltage
16 to 35 Vcc
16 to 35 Vcc
Consumption without load
16V - < 37mA / 35V - < 30mA
16V - < 37mA / 35V - < 30mA
Protection
reverse polarity and short-circuit I < 20mA
reverse polarity and short-circuit I < 20mA
Voltage output
13,6V / 1% - without load, 13.4 to 13.8 and<10V to 40mA 13,6V / 1% - without load, 13.4 to 13.8 and<10V to 40mA
Max. current per output
40mA
Led signaling
Electronic Protection nos seg.
40mA
led verde: Power supply / vermelho piscando: curto-circuito na saída
yes
Fault monitoring
yes
Red led blinking: short-circuit in the spurs
Ex protection
Ex i (a barrier for each segment)
Ex i (a barrier for each segment)
Terminator
yes
yes
Terminating indicator
no
no
Network connection
3 ways double plug-in terminal
3 ways double plug-in terminal
Cable type
Profibus PA cable
Foundation Fieldbus cable
Input/Output of the main cable
by cable gland PG16
by cable gland PG16
cable disconnection
allowed without interrupting the rest of the network
allowed without interrupting the rest of the network
Number of the spurs
2 points
2 points
Spur connections
bornes plug-in 3 vias
bornes plug-in 3 vias
Housing material
Plastic
Plastic
Mounting cover
4 screws with rubber gasket
4 screws with rubber gasket
Protection class
IP 66
IP 66
Operation temperature
-20ºC to +55ºC
-20ºC to +55ºC
Accessories included
terminals, isolator tube, cover, cable gland
terminals, isolator tube, cover, cable gland
14
Sense
FD - Field Barriers Exi
Module FD4
Module FD6
Module FD8
The FD Field Barrier is a Fieldbus
distribution
module
that
integrates an intrinsic safety
barrier for each spur. It´s
available with 4, 6 or 8 points for
the spurs in a plastic or metallic
box. The input and output
network (trunk) is connected in a
double plug-in connector that
allows the distributor board disconnection without interrupting
the rest of the network, and being
turns off only in their derivations
(spurs).
Network
FD4B
FD6B
FD8B
Plastic
Ex i
PA-FD-4B-Exei
PA-FD-6B-Exei
PA-FD-8B-Exei
Metallic
Ex i
PA-FDM-4B-Exei
PA-FDM-6B-Exei
PA-FDM-8B-Exei
Plastic
Ex i
FF-FD-4B-Exei
FF-FD-6B-Exei
FF-FD-8B-Exei
Metallic
Ex i
FF-FDM-4B-Exei
FF-FDM-6B-Exei
FF-FDM-8B-Exei
Profibus PA
Fieldbus
Module internal view
Terminator
Sense
Protection of the network
terminal in Increased
Safety
Ground terminal
Network plug-in terminal
Spur Status Led
(blink in short-circuit)
Pression terminal for the Spurs
Allow the exchange of field equipment
with the network energized.
Spur Status Led
(blink in short-circuit)
15
Specifications
Features
PROFIBUS PA
FOUNDATION FIELDBUS
Modelo 4 points
PA-FDM-4B-Exei
FF-FDM-4B-Exei
Modelo 6 points
PA-FDM-6B-Exei
FF-FDM-6B-Exei
Modelo 8 points
PA-FDM-8B-Exei
FF-FDM-8B-Exei
Function
Intrinsic Safety
Intrinsic Safety
Operating voltage
16 to 35 Vcc
16 to 35 Vcc
Consumption without load
16V - < 37mA / 35V - < 30mA
16V - < 37mA / 35V - < 30mA
Protection
reverse polarity and short-circuit I < 20mA
reverse polarity and short-circuit I < 20mA
Output voltage
13,6V / 1% - without load, 13.4V to 13.8 and >10 to
40mA
13,6V / 1% - without load, 13.4V to 13.8 and >10 to
40mA
Max. channel output current
40mA
40mA
Led indication
Green Led: Power Supply / red blinking: output short-circuited
Short-circuit electronic protection in the
segments
yes
yes
Terminator
yes
yes
Termination resistor indicator
no
no
Fault monitoring
Red led blinking: short-circuit in the spurs
Ex protection
Ex i (a barrier for each segment)
Ex i (a barrier for each segment)
Network connection
3 ways double plug-in terminal 2.5 mm²
3 ways double plug-in terminal 2.5 mm²
Cable type
Profibus PA cable
Foundation Fieldbus cable
Input/Output for trunk cable
cable gland PG16
cable gland PG16
cable disconnection
allowed without interrupting the rest of the network
allowed without interrupting the rest of the network
Number of spurs
4, 6 or 8
4, 6 or 8
Spur connections
3 ways pression terminals 2.5 mm²
3 ways pression terminals 2.5 mm²
Housing material
aluminum
aluminum
Mounting cover
4 screws with rubber gasket
4 screws with rubber gasket
Protection class
IP 66
IP 66
Operation temperature
-20°C to +55°C
-20°C to +55°C
Weight
Aprox. 1600g
Aprox. 1600g
Accessories included
terminal, isolator tube, cover, cable gland
terminal, isolator tube, cover, cable gland
Mechanical Dimensions
Dimension table
A
(mm)
B
(mm)
C
(mm)
Plastic
Ex i
220
120
91
Metallic
Ex i
200
FD
C
C
A
B
120
A
B
A
B
65
Barrier 4 points
16
C
Barrier 6 points
Barrier 8 points
Sense
FD - Field Barrier Exi with Connector
Network
Plastic
PA
FF
Metallic
7/8" connector model
FD4B
FD6B
PA-FD-4B-VM-Exei
PA-FD-6B-VM-Exei
PA-FDM-4B-VM-Exei PA-FDM-6B-VM-Exei
Module FD8-VM
Module FD8-V1
Module FD4-V1
Module FD6-V1
Module FD4-VM
Module FD6-VM
The FD Field Barrier is a fieldbus distributin module that integrates a intrinsic safety barrier for each spur. It´s available with 4, 6 or
8 points for spurs with 7 / 8 “or M12 connectors in plastic or Metal box.
FD8B
Network
PA-FD-8B-VM-Exei
PA-FDM-8B-VM-Exei
Plastic
FF-FD-4B-VM-Exei
FF-FD-6B-VM-Exei
FF-FD-8B-VM-Exei
Metallic
FF-FDM-4B-VM-Exei
FF-FDM-6B-VM-Exei
FF-FDM-8B-VM-Exei
PA
FF
M12 connector model
FD4B
FD6B
Plastic
PA-FD-4B-V1-Exei
PA-FD-6B-V1-Exei
PA-FD-8B-V1-Exei
Metallic
PA-FDM-4B-V1-Exei
PA-FDM-6B-V1-Exei
PA-FDM-8B-V1-Exei
Plastic
FF-FD-4B-V1-Exei
FF-FD-6B-V1-Exei
FF-FD-8B-V1-Exei
Metallic
FF-FDM-4B-V1-Exei
FF-FDM-6B-V1-Exei
FF-FDM-8B-V1-Exei
Module internal view
7/8” network
connector
FD8B
Protection to the network
terminals in Increased
Safety
Terminator
Ground terminal
Networ plug-in terminal
7/8” Spur
connector
Pression terminal
Spur Status Led
(blink for short-circuit)
Sense
17
Specifications
Features
PROFIBUS PA
FOUNDATION FIELDBUS
Modelo 4 points
PA-FDM-4B-VM-Exei
FF-FDM-4B-VM-Exei
Modelo 6 points
PA-FDM-6B-VM-Exei
FF-FDM-6B-VM-Exei
Modelo 8 points
PA-FDM-8B-VM-Exei
FF-FDM-8B-VM-Exei
Function
Intrinsic Safety barrier
Intrinsic Safety barrier
Operating voltage
16 to 35 Vdc
16 to 35 Vdc
Consumption without load
16V - < 37mA / 35V - < 30mA
16V - < 37mA / 35V - < 30mA
Protection
reverse polarity and short-circuit I < 20mA
reverse polarity and short-circuit I < 20mA
Output voltage
13,6V / 1% - without load, 13,4V to 13,8V and >10 to
40mA
13,6V / 1% - without load, 13,4V to 13,8V and >10 to
40mA
Max. channel output current
Led indication
Green Led: power supply / red blinking: output short-circuited
Short-circuit electronic protection in the
segments
yes
yes
Terminator
yes
yes
Terminating resistor indicator
no
no
Fault monitoring
Red led blinking: short-circuit in the spurs
Ex protection
Ex i (a barrier for each segment)
Ex i (a barrier for each segment)
Network connection
3 ways double plug-in terminal 2.5 mm²
3 ways double plug-in terminal 2.5 mm²
Cable type
Profibus PA cable
Foundation Fieldbus cable
Input/Output for trunk cable
via 7/8" connector
via 7/8" connector
cable disconnection
allowed without interrupting the rest of the network
allowed without interrupting the rest of the network
Number of spurs
4, 6 or 8
4, 6 or 8
Spur connections
via 7/8" connector
via 7/8" connector
Housing material
aluminum
aluminum
Mounting cover
4 screws with rubber gasket
4 screws with rubber gasket
Protection class
IP 66
IP 66
Operation temperature
-20°C to +55°C
-20°C to +55°C
Weight
Approx. 1600g
Approx. 1600g
Accessories included
kit terminal,tubo isolador, tampão
kit terminal, tubo isolador, tampão
2
4
Macho 7/8”
Dimension table
FD
Plastic
Ex i
Metallic
Ex i
A
(mm)
220
B
(mm)
120
C
(mm)
120
4
2
Fêmea 7/8”
C
3
1
4
2
Fêmea 7/8”
Foundation Fieldbus
Pino 1 = Bus Pino 2 = Bus +
Pino 3 = S (dreno)
Pino 4 = Not Used
Spur
Rede OUT
Rede IN
1
3
2
4
3
1
4
2
3
1
4
2
91
65
* Dimensions for 4 and 6 points
models.
18
1
Profibus PA
Pino 1 = Bus +
Pino 2 = Not Used
Pino 3 = Bus Pino 4 = S (dreno)
18
A
200
3
Macho 7/8”
Fêmea 7/8”
Fêmea M12
B
Barrier 8 points
Profibus PA
Pino 1 = Bus +
Pino 2 = Not Used
Pino 3 = Bus Pino 4 = S (dreno)
Barrier VM
3
Foundation Fieldbus
Pino 1 = Bus Pino 2 = Bus +
Pino 3 = S (dreno)
Pino 4 = Not Used
Barrier V1
Mechanical Dimensions
Spur
Rede OUT
Rede IN
1
Sense
Code Key
- Terminal
V1 - M12 Connector
VM - 7/8" Connector
MD - 2 or 4 points
FD - 4, 6 or 8 points
2 - 2 points
4- 4 points
6 - 6 points
8 - 8 points
Housing
Connetion
Spurs
PA
-
FD
M - 8
B
-
VM
- : Plastic
M : Metal
D- Passive
Derivador
Derivator
Passivo
P - Segment
Protector
Protector
de
SegmentoIntrinsic
B
- Intrinsic Safety Safety
Barrier
Network
Type
Tipo
Ex
- general purpose
Ex - For Potentially
Explosive Atmosphere
e - Increased Safety
i - Intrinsic Safety
Material
PA - Profibus PA
FF - Foundation Fieldbus
-
Version
Available:
general purpose
PG Exi 11
PG 11
PG Exe 11
Cable Gland (PG16 available)
Ex e
Ex i
TP-Ex e - 11
Covers ( PG16 available)
7/8" male
Sense
Conector
Conector
Connector
Connectors
7/8" Female
M12 Male
19
www.sense.com.br
Contact us:
HEADQUARTERS
Rua Tuiuti, 1237 - Tatuapé
São Paulo - SP - Cep: 03081-000
Fone: 55 11 6190-0444
Fax:(11) 6190-0404
[email protected]
FACILITY
Av. Joaquim Moreira Carneiro. 600 - Santana
Santa Rita do Sapucaí - Minas Gerais - Cep:
37540-000
Fone: 55 35 3471-2555
Fax: 55 35 3471-2033
Sensors and Instruments
20
20000000049 Rev.1 - 03/09 - All information above may be modified with no previous notice..
Sense