Compact HMI modbus REAL value
I try read/write REAL value to AC500 PLC with Modbus and Compact HMI.
I can not match desimals if register value is MW1000 in PLC and HRA999,REAL. If I try MD1000 and HRA2000,REAL, write is not possible. With MW1000 and HRA999,REAL configuration nuber has some 2 decimal dig error in number 100.00. In HMI is 100.00 and PLC is 100.17. How to get right signal settings to REAL value?
Asked 4 years ago
Answers
0
One idea is to adjust your value in PLC, if you Multiply by 100 all your data you have per example 10017.00 in this case you have this number in HMI, you divide by 100 and show 100.17
by marquee71 Rank: 4486 on 2/28/2015 12:38:14 AM | Like (0) | Report
That solution is ok if worked with only CHMI, but I have used same register to R/W from CP600 panel. Is there any way to get these digits match or is this just feature which I buy from ABB. Now I have used OPC for REAL data to get right decimals. In CP600 I do not have this problem with Modbus. There digits works fine.
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