Mitsubishi Electric ME96SSH-MB Programming Manual page 57

7.2.6
About Error Occurrence
When the command and related data transmitted to ME96 is improper or ME96 is in H/W error,
RX(n+7)A (Error status flag) becomes 1(ON),
Table 7.24 Error Code
Illegal command or packet length
Invalid group number
Invalid channel number
ME96 is in set-up mode or test mode
Invalid data for set-up
It is not set the item of alarm
If an error occurs, the error code is written into the RWrn as shown in the figure below, and RX(n+7)A (error status
flag) is turned on (error occurrence) and RX(n+7)B (remote READY) is turned off (normal communication stop).
For the error resetting method, refer to "6.3 Error Communication".
the error code shown in Table 7.24 is returned as reply data.
Error Description
(57/n)
Error Code (Hex.)
40h
41h
42h
43h, 44h
51h
55h
LEN130391B