Mitsubishi Electric Melsec WS Series User Manual page 43

Ethernet interface module
Byte values
Part of message
(hex)
52 A1 10 4C
52 A1 10 4C
00 00 00 00
Data set 2
00 00 00 00
(see Table 15)
00 00 00 00
00 00 00 00
00 00 00 00
00 00 00 00
FF FF FF FF
FF FF FF FF
FD FB FF FF
Data set 3
(see Table 15 and
Table 16)
Data set 3 data is
FF FF FF FF
transferred in Big
FF FF FF FF
Endian format, i.e. in
FF FF FF FF
32 bit double word
FF FF FF FF
format with the most
FF FF FF FF
significant byte (byte 3)
FF FF FF FF
placed in the leftmost
FF FF FF FF
position.
FF FF FF FF
FF FF FF FF
FF FF FF FF
FF FF FF FF
FF FF FF FF
Meaning
Overall CRC (same as system CRC)
System CRC
Reserved
Status module 0 (WS0-CPU0/WS0-CPU1): OK
Status module 1 (e.g. WS0-XTDI): OK
Status module 2 (e.g. WS0-XTIO):
Byte 0: FF = 11111111: No errors
Byte 1: FF = 11111111: No errors
Byte 2: FB = 11111011: Input 3 external test
signal failure
Byte 3: FD = 11111101: Output 1 stuck-at-low
error
Status modules 3-6: OK
Status modules 7-12 (no modules present)
Status module 13 (e.g. WS0-GETH): OK
Status module 14 (no module present)
MELSEC-WS
40