HMS A8NDPV1 Instruction Manual page 51

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Executing example requests
To perform a parameter write, set the PNU of the parameter to change in requestParameterNo. As
an example, to change parameter 15 (Jog frequency), add the offset 5096 and write the result to
this variable. Set variable requestParameterValue to the requested value. The value that will be
set, will be the output of multiplication of the set value, and the minimum setting increments, as
according to the parameter list in the inverter manual. For parameter 15, the minimum setting
increment is 0.01Hz. If a jog frequency of 5Hz is requested, set requestParameterValue to 500. Fi-
nally execute the request by setting bit requestParameter to ON. A successful write will result in
setting of the parameterWriteSuccess bit.
Test receiving a negative response, by trying to write an out of range value. After trying to write
0xFFFF as the value of parameter 15, a negative response with error code 0x02
(LOW_OR_HIGH_LIMIT_EXCEEDED) will be received, which is the expected behavior.
A8NDPV1 PROFIBUS Option Board
GX Works2 (Q-CPU) Acyclic communication example
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