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5–12
Parameter Value Write
PLC request
N10:0
Drive response
N10:90
* Example only – These values vary depending on parameters and products.
1203–5.5 September 1995
The Parameter Value Write message writes a 16–bit parameter data
value to the selected parameter number.
PLC Block Transfer Emulation Instruction Data
PLC request instruction length: 1 word
Drive response instruction length: 4 words
Message Structure
PLC Request
Parameter Value
Data Word 1
Message Operation
The Parameter Value Write function sends a new value to the
specified parameter. The value must be in device units. Units for
each parameter are listed in the device manual.
If an error has occurred, word 2 of the response returns a value of
–31999, and word 4 contains a status code.
Example
In this example, a value of 4096 was sent to Parameter 20. 4096 is
in drive units and indicates a value of 100% Drive Rated Volts, as
defined in P147, Drive Rated Volts.
Data File Format
0
1
2
4
–31999
20*
4096*
4
769
20*
Message Length
PLC Decimal Value
769 –– Message OK
–31999 –– Message Error
Parameter Number
Status Word
3
4
5
6
0
Drive Response
Header
4
Word 1
Header
Word 2
Data
Word 3
Data
Word 4
7
8
9
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