SIMATIC 505
Comunication between HMI MP277 and TI 535 1212
Thread Starter: ern_z Started: 11/15/2011 11:17 AM Replies: 0
11/15/2011, 11:17 AM
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I have a HMI panel MP277 10 inch touch that must comunicate with a Texas PLC Ti 534 1212. by means of the RS 422 serial port.
I have made a very simple sample program with just one variable and with the system message window.
The comutication keeps crashing and the HMI system messages 22006 and 22007 alternatly appear.
I have tried changing all the RS422 settings in WINCC, also the byterate. I have also tried changing the RS422 cable, all with the same results. I must precise that the RS422 cable is only about 1 mt long.
I'm using WINCC SP2 Upd13 and I've load B 1.1.3.13 firmware on the MP277.
Thanks in advance
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