Download CDI 5400 Flowmeter

Further Information
Please visit www.cdimeters.com/networking for links to further information on
wireless networking.
FCC Notification
Contains FCC ID: MCQ-S2CTH OR MCQ-PS2CTH
This device complies with Part 15 of the FCC rules. Operation is subject to the
following conditions: (1.) this device may not cause harmful interference and (2.) this
device must accept any interference received, including interference that may cause
undesired operation.
Warranty
CDI warrants solely to the buyer that the Wireless Output Display Board shall be free
from defects in materials and workmanship, when given normal, proper and intended
usage, for three years from the date of purchase. During the warranty period, CDI will
repair or replace (at its option) any defective product at no cost to the buyer. The
foregoing warranty is in lieu of any other warranty, express or implied, written or oral
(including any warranty of merchantability or fitness for a particular purpose). CDI’s
liability arising out of the manufacture, sale or supplying of the flowmeter, whether
based on warranty, contract, tort or otherwise, shall not exceed the actual purchase
price paid by the buyer, and in no event shall CDI be liable to anyone for special,
incidental or consequential damages.
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CDI Wireless Network
Installation and Operating Instructions
Overview
The CDI wireless networking system operates on the ZigBee® mesh networking
protocol in the unlicensed 2.4 gigahertz frequency band. Each meter has a
modified display circuit board on which is mounted a radio module manufactured
by Digi International. These modules communicate with an Ethernet to wireless
gateway, also manufactured by Digi and configured by CDI for use with the
network. The gateway contains a radio device called a ZigBee Coordinator,
which creates a network and allows devices to join. The radio modules in the
meters are ZigBee Routers; in addition to responding to requests for information,
they pass data from one to another, so that messages can be relayed to devices
that are beyond the range of the source device.
Locating the Meters and the Gateway
The installation should be planned to ensure strong radio communication among
the devices in the network. The signals will travel long distances when there is a
direct line of sight. They will pass through non-conductive walls, but they will be
attenuated in the process. Reflections off of large metal objects may interfere
with signal clarity. Mounting the meters and the gateway high above the floor
may reduce blockage by people and equipment.
CDI will provide dummy meters on loan to test proposed meter locations.
Setting Up the Network
CDI wireless networks are sold pre-configured; the user only needs to deal with
network configuration when adding meters or moving meters from network to
network. To set up the pre-configured network, proceed as follows:
1.
2.
3.
Install the flowmeters according to their installation instructions or install
the wireless networking displays in existing meters; install the gateway;
connect it to the Ethernet and power it up.
Determine the network address of the gateway. A link to software to do
this is available at CDIMeters.com/networking. The web portal of the
gateway can be accessed by entering its address in a browser; no
changes should be needed at this time, unless you wish to assign it a
fixed IP address.
Proceed with setting up MeterGrapher or other software you will be
using to monitor the meters.
Wireless Network Data Form
A data form is furnished with each configured network. For the gateway, it gives
the PAN ID and the link encryption key; for each node it gives the node address
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and the MAC address. If the wireless output is installed in a meter, it provides
model number and serial number of that meter. The data form is available in
Excel format to allow the user to add data on the installed system and on any
meters that are added in the future.
Specifics of the Configuration provided by CDI
The following changes have been made to the default configurations of the
gateway and the modules:




The Extended PAN ID (ID) has been set to the gateway’s sequence
number, as indicated on the gateway.
The Link encryption key (KY) has been set to the key shown on the
network data form. The key does not display. You may want to change it
for security. If you do change it, please notify CDI when purchasing new
meters or wireless display boards to add to the network. We can either
program in your new key, or provide you with information on
programming it yourself.
Encryption has been enabled (EE).
In the gateway, a setting has been changed to prevent automatic
connection to its manufacturer’s server.
Moving a Meter from Network to Network
1.
2.
3.
4.
5.
6.
If the meter is out of range of the network it is leaving, temporarily move
its display to a meter that is in range.
Access the Web portal of the network the meter is leaving by entering
its IP address in your browser. Go to the XBee Network table (link under
Configuration) and locate the meter by its MAC address. Double click on
the MAC address.
On the screen that appears, under Advanced Settings, edit the
Extended PAN ID (ID) so that its last digits match the sequence number
of the gateway for the new network and the total number of digits is not
changed.
Enter the link key (KY) of the new network in the format 0xXXXX, where
XXXX represents four characters, each in the range 0 – 9 and a – f.
Go to the Web portal of the new network and look for the MAC address
of the meter in the xBee Network table. If it is not there, power cycle the
meter and click “Search for xBee devices.”
Add the meter to the Industrial Automation table of the new network. To
do this:
a. Click on “Industrial Automation” and then on the “Meters” table
name.
b. Click the “Add” button below the “Message Destinations”
section.
c. In the screen that appears, click the radio button next to “Send
requests within…” and enter the desired Modbus node address
as the “Protocol Address”.
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From the dropdown labelled “Destination Type” select “Send
messages to XBee device”.
e. Enter the MAC address of the meter in the format shown.
f. Click “Apply”.
MeterGrapher or other monitoring software should now be able to
access the meter at its chosen node address on the new network.
Update the configuration of MeterGrapher or the other software
accordingly.
Update the Wireless Network Data Forms for the two networks.
d.
7.
8.
Adding a New Meter to a Network
When ordering a meter to add to a network, please provide the sequence
number of the gateway and let CDI know if the Link Encryption Key has been
changed from the default.
1.
2.
3.
4.
Install and power the new meter. Access the Web portal of its gateway.
The meter should appear, listed by its MAC address, in the XBee
Network table under Configuration.
Add the meter to the Industrial Automation table, as described in Item 6,
above.
MeterGrapher or other monitoring software should now be able to
access the meter. Update the configuration of the software accordingly.
Update the Wireless Network Data Form for the network.
Modbus Interface
The wireless network of flowmeters makes information available over the
Ethernet using the Modbus TCP/IP protocol. The gateway receives requests at
its IP address and forwards them in Modbus RTU format to the meters whose
node addresses are contained in the messages. The meters respond with
messages to the gateway, and it forwards them to the requesting device. The
following Modbus function codes are supported:
03:
04:
06:
16:
read holding registers
read input registers
write single register
write multiple registers
Flow is transmitted as a 16-bit unsigned integer, sometimes referred to as data
type word. It is transmitted in units of 0.1 scfm, 0.1 Nm3/h, or 0.01 Mm3/min,
depending on the units used by the display. It is found in input register 0, address
30001 in the Modbus five-digit scheme.
Usage is transmitted as a 32-bit unsigned integer, sometimes referred to as data
type dword. The low-order half of the value is transmitted first. Each count
corresponds to ten cubic feet or one cubic meter, depending on the units used by
the display. It is found in input register 1, address 30002 in the Modbus five-digit
scheme.
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