Motorola 68P02958C00-B - Manual (Page 451)

Error Messages
C-159
Error #944: MODBUSTM module, Function %%
The box number of the reply is not as expected!!
Timeout problems. Consult product group.
Error #945: MODBUSTM module, Function %%
The length of pure data in frame is not as expected!!
Timeout problems or system software problem. Consult product group.
Error #946: MODBUSTM module, Function %%
Can not pack in 1 byte the N_BYTES field in 1 byte.
The value of N_BYTES > 0xff.
May indicate system software problem. Consult product group.
Error #947: MODBUSTM module, Function %%
The ACK reply received with data. Expecting ACK with no data !
Timeout problems or system software problem. Consult product group.
Error #948: MODBUSTM module, Function %%
Received a non supported function request
Received a request from MODBUS master that is not supported by the RTU.
Request is ignored.
Error #949: MODBUSTM module, Function %%
Number of elements must be less from 0xff.
Received a request for more than 0xff elements.
The master should not send frames or poll for frames longer than 140 bytes.
Error #950: MODBUSTM module, Function %%
The FLUSH function failed, but continuing
May indicate system software problem. Consult product group.
Error #951: MODBUSTM module, Function %%
The Set Parameters function failed, but continuing
May indicate system software problem. Consult product group.
Error #970: MODBUSTS module, Function %%
Illegal state !!
May indicate system software problem. Consult product group.
Error #971: MODBUSTS module, Function %%
Not enough RAM memory for MODBUS load module connected to PLC !!
May indicate system software problem. Consult product group.