Connecting to a Modbus Plus | 6 |
|
Network |
| |
|
| |
|
|
|
|
|
|
Modbus Plus Network Status Indicator
Introduction | The Modbus Plus Network Status Indicator displays the status of the Modbus Plus | |
| communications on the TSXCUSBMBP device. | |
| During initial monitoring of the network, the Indicator will flash at approximately 1 | |
| time/second. If successful Modbus Plus communications are established, it will flash | |
| more rapidly, approximately 6 times/second. Otherwise, it will flash an error code, | |
| indicating that there is a problem with the connection. | |
Flash Codes |
|
|
The table below indicates the valid flash codes for the Modbus Plus Network Status | ||
| Indicator: |
|
|
|
|
| LED Flash Code | Description |
|
|
|
| 6 flashes/second | The TSXCUSBMBP is successfully receiving and passing the token on |
|
| the Modbus Plus network. This is the normal operating mode for a node |
|
| on a Modbus Plus network. |
|
|
|
| 1 flash/second | The TSXCUSBMBP is offline, and monitoring the Modbus Plus network to |
|
| determine which nodes are active prior to attempting to join the network. |
|
|
|
| 2 flashes, then | The TSXCUSBMBP can hear the token being passed, but never |
| pause | receives the token. |
|
|
|
| 3 flashes, then | The TSXCUSBMBP cannot hear the token being passed. This is the |
| pause | flash code to expect if the Modbus Plus cable is not connected to the |
|
| TSXCUSBMBP. |
|
|
|
| 4 flashes, then | The TSXCUSBMBP has detected another node on the Modbus Plus |
| pause | network using the same node address as the TSXCUSBMBP. The |
|
| TSXCUSBMBP will remain in this state until it has not heard any messages |
|
| from any other node with the same node address for at least 5 seconds. |
|
|
|
|
|
|
35011984 02/2006 | 33 |
