Hi,
I am using a Lantronix Xpress DR device for converting RS232/RS 485 to modbus TCP for communicating Micrologix 1100 in modbus as its serial port is not supporting Modbus TCP.I configured PLC's serial port for modbus slave communication and using 1763-NC01 cable for connecting ML 1100 to Lantronix Xpress device.Xpress DR is using standard tunnel firmware.i couldnot communicate with PLC to the device.Do i need to upgrate Lantronix device firmware to Modbus bridge to get communication.I directly connected 1763-NC01 cable's A,B terminals to lantronix 3,4 terminals and interconnected 1 & 4,2&3 of lantronix device.Is the connection ok.Do i need to connect a terminal resistance between 1& 2 terminals of Lantronix device or is there any resistance connected in 1763-NC01 cable itself.Please explain me how i can get communication with Lantronix Xpress DR and ML 1100 and configure Lantronix device for Modbus TCP communication
I am using a Lantronix Xpress DR device for converting RS232/RS 485 to modbus TCP for communicating Micrologix 1100 in modbus as its serial port is not supporting Modbus TCP.I configured PLC's serial port for modbus slave communication and using 1763-NC01 cable for connecting ML 1100 to Lantronix Xpress device.Xpress DR is using standard tunnel firmware.i couldnot communicate with PLC to the device.Do i need to upgrate Lantronix device firmware to Modbus bridge to get communication.I directly connected 1763-NC01 cable's A,B terminals to lantronix 3,4 terminals and interconnected 1 & 4,2&3 of lantronix device.Is the connection ok.Do i need to connect a terminal resistance between 1& 2 terminals of Lantronix device or is there any resistance connected in 1763-NC01 cable itself.Please explain me how i can get communication with Lantronix Xpress DR and ML 1100 and configure Lantronix device for Modbus TCP communication