Hi all
I am new here on this forum and i hope to find help here.
Currently i am working on a projekt including a S7-1200 CPU, 6ES7241-1CH30-1XB0 RS485 module and a small Danfoss FC51 drive. My task is to setup a communication between the module and the drive using the plc as master.
I want to if possible start, stop, set speed and get some feed back. I started up using a sample found online using two s7-1200 plc`s communication between these. Then i deleted the slave in the projekt an instead using the drive as a slave. This did not work for me using several different communications setup, only send or only recive from slave or both. I have been in contact with siemens and they have guided me and also sent me a sample projekt including a S7-1200 PLC and a siemens V20 drive i think it was. Then i tryed to modify this projekt but with absolutely no luck getting anything working. When the plc sends a command then it looks like the drive is responding back when i look at the led`s. So i am pretty shure wiring is ok. I can read out several different fault codes out in the plc. I have tried a different drive also with no luck.
I have wide experience in these plc`s as i have used them many times in various projekts.
Does anyone in here have any kind of experince in this module? Then i would be happy to get any kind of help on this projekt or maybe get a sample. My cpu in the projekt is firmware v3.
I am new here on this forum and i hope to find help here.
Currently i am working on a projekt including a S7-1200 CPU, 6ES7241-1CH30-1XB0 RS485 module and a small Danfoss FC51 drive. My task is to setup a communication between the module and the drive using the plc as master.
I want to if possible start, stop, set speed and get some feed back. I started up using a sample found online using two s7-1200 plc`s communication between these. Then i deleted the slave in the projekt an instead using the drive as a slave. This did not work for me using several different communications setup, only send or only recive from slave or both. I have been in contact with siemens and they have guided me and also sent me a sample projekt including a S7-1200 PLC and a siemens V20 drive i think it was. Then i tryed to modify this projekt but with absolutely no luck getting anything working. When the plc sends a command then it looks like the drive is responding back when i look at the led`s. So i am pretty shure wiring is ok. I can read out several different fault codes out in the plc. I have tried a different drive also with no luck.
I have wide experience in these plc`s as i have used them many times in various projekts.
Does anyone in here have any kind of experince in this module? Then i would be happy to get any kind of help on this projekt or maybe get a sample. My cpu in the projekt is firmware v3.