Mitsubishi Electric Melsec WS Series, Руководство пользователя

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Data sets
MELSEC-WS
46
4.1.4 Configuration checksums (CRCs)
Data set 2 contains the following configuration CRCs for the MELSEC-WS safety
controller:
 Overall CRC (same as system CRC). The overall CRC is the checksum
displayed in the Setting and Monitoring Tool report.

System CRC (SCID)
Each checksum is four bytes long. Data set 2 can not be customized.
4.1.5 Error and status information of the modules
Data set 3 contains the module status information transferred to the network.
Four bytes are used for each module (e.g. WS0-XTIO). These four bytes are being
transferred in Big Endian format, i.e. in 16 bit word format with the first byte placed in
the least significant, or rightmost byte of the integer and the second byte placed in
the most significant, or leftmost byte of the integer:
Data set 3 can not be customized.
Meaning of the module status bits
Table 16: Meaning of the module status bits
Byte Bit
Safety I/O modules
(e.g. WS0-XTIO, WS0-XTDI)
CPU modules
(e.g. WS0-CPUx)
Network modules
(e.g. WS0-GETH)
0 0
Module operating state
1 = Executing
0 = Any other state Module operating state
1 = Executing
0 = Any other state Module operating state
1 = Executing
0 = Any other state
1
Internal error: Internal tests failed
1 = No error
0 = Error Internal error: Internal tests
failed
1 = No error
0 = Error Internal error: Internal tests
failed
1 = No error
0 = Error
2
External error: Summary of bit 0.5..3.7
1 = No error
0 = Error Power supply out of range or
EFI communication failure
1 = No error
0 = Error External error: Summary of
bit 0.5..3.7
1= No error
0 = Error/inactive
3
Reserved Reserved Reserved
4
Configuration is incompatible or invalid.
1 = Configuration valid
0 = Conf. invalid or unknown Configuration of a module
within the system is
incompatible or invalid.
1 = Configuration valid
0 = Conf. invalid or unknown Configuration is incompatible
or invalid.
1 = Configuration valid
0 = Conf. invalid or unknown
5
Output power supply out of range.
1 = Power supply o.k.
0 = Power supply out of range Power supply out of specified
range
1 = Power supply o.k.
0 = Power supply out of range Input status changed to
invalid
1 = Valid network
communication
0 = Invalid or no
communication