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S7 200-PM9C power meter (Schneider-Electric)-Modbus RTU communication

11/18/2008 7:39 PM	Rate (0)
luciferC4 Silver Member Joined: 1/25/2006 Last visit: 1/19/2026 Posts: 257 Rating: (62)	Hello, Have someone experience with PM9C power meter in connection with S7 200 as modbus master via Modbus protocol. In one project I used CPU 224XP as modbus master and four PM9C devices and one PM710 device. Communication with PM710 is OK, I can read predefine parameters but from PM9C I can't. I tried to change speed (9600 and 19200) than parity, timeout but without success. If someone have an idea what can be problem, please, contact me. Thank you in advance.

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5/5/2011 3:01 PM	Rate (0)
kidsolo1412 Advanced Member Joined: 4/24/2010 Last visit: 12/23/2025 Posts: 16 Rating: (0)	luciferC4 Hello, Have someone experience with PM9C power meter in connection with S7 200 as modbus master via Modbus protocol. In one project I used CPU 224XP as modbus master and four PM9C devices and one PM710 device. Communication with PM710 is OK, I can read predefine parameters but from PM9C I can't. I tried to change speed (9600 and 19200) than parity, timeout but without success. If someone have an idea what can be problem, please, contact me. Thank you in advance. I'm trying to connect PM710 to S7200 using modbus.But no success.Can you help me some I try to read V (A-N) 4033 through modbus.But always have errors 101 at modbus MSG Attachment PG.zip (637 Downloads)

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5/9/2011 1:14 PM	Rate (0)
adrian1982 Posts: 37 Rating: (3)	try put 44033 in VD5 4033 is the register and 4 it's like a prefix to call that register.
adrian1982 Posts: 37 Rating: (3)	Last edited by: adrian1982 at: 5/9/2011 1:20 PM Last edited by: adrian1982 at: 5/9/2011 1:20 PM
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