micrologix 1400 ser B

[machinebuilder 2]

I need to have a 1400 series B to do Modbus. I have a series  A. Is there a way to upgrade the plc I have to series B?  So does AB only sell the latest series or my distributor sells what he has on the shelf?

I hope I do not have to rip out the plc. It is wired in and in the cabinet. I went to program the machine and found out I had the wrong series.

[Mickey 71]

The serial ports on your Ser A support Modbus RTU Master or Slave.

You can then use a gateway to convert to Modbus TCP if that is what you want.

 

https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=modbus%20rtu%20to%20modbus%20tcp

[Michael Lloyd 85]

Drop in a protocol converter, like a Red Lion DSPGT, and transfer the data that way. 

Edited 6 May 2016 by Michael Lloyd