start address for 40001
ABB 800 xa is master and siemens plc is slave and i am trying to read data type real with modbus address 40001. can anyone tell me that what should be start address in MBTCP read?
and for word/INT with modbus address 40043?
and for word/INT with modbus address 40043?
Asked 3 years ago
Answers
1
Greetings,
There is an application exists in APP section of AKS. You can find from below link:
http://www402.abbext.com/AC800M-Modbu...
In this application example you can find indication of start address.
Hope it helps you.
1
Hi,
Using MbRTU, 40001 is HR.
Use %QW10#0 since it is the first HR.
If the data is of "Real" type then you need to read two consecutive HR and convert according to the IEEE754 standard.
I think you can use "dword_to_real(dword)ts a dword value to a real value.
400043 = %QW10#42
Answered 3 years ago
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