Mitsubishi Electric MELSEC-Q Series User Manual page 254

Number Name
Send/receive
SW0030 instruction (1)
processing result
Send/receive
SW0031 instruction (2)
processing result
SW0040 Network No.
SW0042 Station No.
SW0043 Mode status
SW0046 Module type
Baton pass status (own
SW0047
station)
Cause of baton pass
SW0048
interruption
SW0049 Cause of data link stop
Data link stop request
SW004A
station
Stores the processing results of the link dedicated instruction that used the own station's channel
1.
0: Normal completion
1 or higher: Abnormal completion (Refer to Section 12.5.)
Stores the processing results of the link dedicated instruction that used the own station's channel
2.
0: Normal completion
1 or higher: Abnormal completion (Refer to Section 12.5.)
Stores the network number of own station.
Range: 1 to 239
Stores the station number of own station.
Range: 1 to 120 (master station: 125), FFH (the station number not set)
Stores the mode of own station.
0: Online (Normal Mode)
2: Offline
Stores the own station's hardware status.
b15
SW0046 0
Stores the baton pass status for the own station (transient transmission possible).
0: Data link in progress
2: Baton pass in progress
3: Baton pass stopped
5: Offline
Stores the cause of interruption in the communication (baton pass) of own station.
00H: At normal communication or power-on
30H: Cable disconnection
33H: Disconnection or reconnection in progress
40H: Offline mode
Stores the cause which stopped the data link of own station.
00H: At normal communication or power-on
02H: Monitoring timeout
05H: No slave stations (master station only)
14H: Master station duplication
18H: Parameter error
19H: Parameter communication in progress
20H: CPU module stop error
60H: Ring topology configuration (master station only)
Stores the station No. of the station that performed the cyclic transmission stop request for the
own station.
Range: 1 to 120, 125 (master station)
The cyclic transmission stop request is performed by System link stop (SB0003).
(Condition)
• This is enabled when Baton pass status (own station) (SB0047) is off.
Appendix - 18
Description
to b2 b1 b0
0
to
Module type
00: Module
01: Board
10: Display
Appendices