User manual

915U-2 Wireless I/O Page 75
Page 75 User Manual
Modbus Error Registers
Each of the Expansion I/O modules have diagnostics registers that can indicate any
Modbus Errors, Codes, Counts, etc.
30017 + Offset = Modbus Error Counter (number of errors the modules has had)
30018 + Offset = Modbus Last Error Code (see Appendix D for codes)
30019 + Offset = Modbus Lost Link Counter (number of Communication Errors)
30020 + Offset = Modbus Module Type
 dec 257 (101hex) indicates a 115S-11
 dec 513 (201hex) indicates a 115S-12
 dec 769 (301hex) indicates a 115S-13
5.2 Connectivity (WibMesh)
The Connectivity webpage displays connections and available networks. The
“Connected Devices” section displays the Destination IP Address, the relaying IP
Address, the number of hops the message is taking through the network, signal strength
and link quality along with some message related information. The readings shown are
based upon the last received data message from the device.
Figure 50 - Connectivity
Note that when updating the Connectivity webpage, ensure the page is current by
refreshing the page. It may be necessary to hold down the <ctrl> key while pressing the
refresh button so as to force the cache to be refreshed.
Description
Dest
Destination IP Address
Next
Next IP Address
Hops
Number of Hops
RSSI
RSSI (Radio Signal Strength Indication) measured in dBm which is a
negative value scaled from -40dBm (good) to -120dBm (bad). RSSI is
displayed for destination addresses, which are direct neighbours. If the
Destination IP is not the next hop, you will see an RSSI value of “~”