Modbus Address
Sir,
I have configure my FSCA-01 modbus of VFD ABB 850 with ABB800xA DCS sucessfully. I am in trouble that DCS read only 16 Bit length real value and not read 32 Bit length real value. What could i do in programming ?
Answers
Greetings,
If i am not wrong, you are trying to query 32bit real data type variables from ABB Drive.
For this aim you can query sequential two words, and then you can use these words as inputs of "Words_To_Real" block. As a result you can get 32bit real data value.
Also please don not fotget to set properly "BigEndian" input of "Words_To_Real" function block.
Hope it helps you.
only single register is supported by AC800M modbus, you have to read two registers and then use Words_To_Real" block to get a 32bit floating value.
Take a note, this block only introduced after 800xa version 5.1
by Sonata Rank: 137 on 2/3/2016 9:02:51 PM | Like (0) | Report
only single register is supported by AC800M modbus, you have to read two registers and then use Words_To_Real" block to get a 32bit floating value.
Take a note, this block only introduced after 800xa version 5.1
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