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S7 200 Modbus Communication With Toho Controller

12/7/2012 2:11 PM	Rate (0)
Strongs Bronze Member Joined: 7/3/2011 Last visit: 1/6/2026 Posts: 82 Rating: (0)	Dear Experts, In my new project I have using 224XP as a master and modbus communication with TOHO controller. I want to read and write the values like Setpoint and Process variables. I tired to estabilish the communication between thease two in last few days but til now no succeed. Here I attached the controller manual. Please give sugesstion for me. I have checked in my connection cable and communication settings between two devices are ok. But the error code value 03 was came in modbus msg block. Regards Attachment C:\Documents and Settings\user\Desktop\TTM-000 COMMUNICATION MANUAL MODBUS.pdf (331 Downloads)

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1/3/2013 7:53 PM	Rate (0)
Genglish Posts: 7 Rating: (0)	Did you confirm the TOHO device responds to another Masters requests? I use several packages when troubleshooting modbus issues, but ModSim and ModScan are two easy to use packages and I think still have a free trial period available for the download. Connect up the laptop and using these packages youwill be able toconfirm Modbus setup on both the TOHO device and your microwin app.
Genglish Posts: 7 Rating: (0)
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