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Transcript
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. © 2016CDI Meters, Inc. 06:16 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 © 2016CDI Meters, Inc. 06:16 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”. © 2016CDI Meters, Inc. 06:16 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. © 2016CDI Meters, Inc. 06:16