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I'm currently trying to set-up a M241 PLC to communicate with a Rigol Multimeter via RS-232 using the ASCII manager.
I have had success sending commands to the multimeter (and hyperterminal on a PC) from the PLC using the example below from the
SoMachine Modbus and ASCII Read/Write Functions PLCCommunication Library Guide
I have taken this example and modified it in order to try and receive a basic message, initially from hyperterminal, See 'Current receive example' below, however I am yet to get this working.
Can anyone share an example of code used to receive a message using this SEND_RECV_MSG function block? Or provide a hint as to where I am going wrong?
Current Receive Example:
The PLC is connected to my computer using a RJ45 to serial cable and a serial to usb converter.
I believe I have the ascii manager and cable set-up correctly as I am able to send messages from the PLC to hyperterminal.
Thanks in advance,
You can use programme that at linked.And also You can find video at attached for explaining programme.But video is turkish language.
Link: RS232 ascii communication with TM241
Thank you for the program. It was very helpful, I've got it working now!
I have exactly the same problem but the file is no longer available ? Could you put it back online? Or put a screenshot? Or the link for the video ? thanks in advance
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