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I have connect cable with PLC by 2 kind: 1. CIF01 2.RS232 :  XW2Z-200S-CV  to serial port in PLC When connect the led in PLC  (COMM): is flash red but no respond from PLC. I used CX one and used SYS Win but not connect. Please help me !

Because PLC CPM2AE made in china has not switch ON/OFF near RS232 port. I have open board and check but pin in position dipswitch have no circuit. In RS232 on PLC connect HMI used hotlink (9600,7,2,E) but now port not connect to HMI although before connect normally. Cable RS232 is OK because I used many time: XW2Z-200S-CV. Cable CIF-01 is ok. It is difficult for me: no battery, no clear config plc, no reset plc. Please help me, but not connect I must change CP1E and modul, I must pay money for that change. May clear PLC?? because I have program PLC before change config. Thanks you so much !

Thank you Mr IO_Rack. I will test it and reply you. Because PLC in china has not little switch on near serial. I will drill on board.  

I have connet to PLC CPM2AE but I have changed Peripheral to RS232C and now I not connect to PLC to PC when used CX One. I have tried connet two kind: 1. Cable CIF01  to peripheral : not connect 2. Cable RS 232 to port RS 232: not conect. PLC is normal: run but port RS 232 in PLC have not connect to HMI althought before connect normal. I have setting wrong hotlink to Rs232 but now I don't connect to PLC to change. PLC have no battery. Please help me to connect PLC or clear setting port. Thank you somuch