LAUREL LWFIX, Руководство пользователя

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2. Reading the Display Value with Cached
“Displayed Measurement Only”
If the Network Setup utility is set to cache
“Displayed Measurement Only,” the
cached meter reading will be available for retrieval via Modbus every 10 msec.
Use the table below if the reading is desired as a 32-bit signed two
’s complement
integers with a separately read decimal point.
Funct.
Code
Input Register
Base 1 Address
Register Contents Data Format
FC04 0105 Read decimal point position
0001 = xxxxxx.
0002 = xxxxx.x
0003 = xxxx.xx
0004 = xxx.xxx
0005 = xx.xxxx
0006 = x.xxxxx
FC03 7400-7401
Low address is most significant
word. High address is least signi-
ficant word.
Combine 16-bit words
to form a 32-bit integer.
Use the table below applies if the reading is desired as a 32-bit real number in IEEE
754 floating point format.
Funct.
Code
Input Register
Base 1 Address
Holding Register Contents Data Format
FC03 8200-8201
Low address is most significant
word. High address is least signi-
ficant word. Combine 16-bit words
to form a 32-bit f
loating
point number
.