NORD Drivesystems BU0550 - Manual (Page 53)

3 AWL (Instruction List, IL)
BU 0550 GB-0813 53
3.5.2.2 MC_WriteParameter_16 / MC_WriteParameter_32
Writes a 16/32 Bit parameter into the frequency inverter, if EXECUTE changes from 0 to 1 (flank). The
parameter has been written if DONE is set to 1. For the duration of the reading process the BUSY output is
set to 1. In case of error, ERROR is set to 1 and the ERRORID contains the error code. The signals DONE,
ERROR, ERRORID remain set until EXECUTE changes back to 0. The writing process is not interrupted if
the EXECUTE signal changes to 0. It is only the DONE signal which only remains set for 1 PLC cycle.
If the RAMONLY input is set to 1, the settings will only be saved to the RAM. The changed settings will
therefore be lost if the FI is switched off.
Table 72 MC_WriteParameter16 / MC_WriteParameter32
VAR_INPUT VAR_OUTPUT
Input Explanation Type Output Explanation Type
EXECUTE Enable BOOL DONE Value is valid BOOL
PARAMETER NUMBER Parameter number INT BUSY The writing process is active BOOL
PARAMETER INDEX Parameter index INT ERROR Reading has failed BOOL
VALUE Value to be written INT, DINT ERRORID Error code INT
RAMONLY Only save in RAM
ERRORID Explanation
0 Invalid parameter number
1 Parameter value cannot be changed
2 Lower or upper value limit exceeded
3 Incorrect parameter index
4 No array
5 Invalid data type
6 Only resettable (only 0 may be written)
7 Description element cannot be changed
201 Invalid order element in the last order received
202 Internal response label cannot be depicted