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APPENDICES
A
Appendix 4 Link Special Register (SW) List
SW004A
Data link stop request
station
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.
SW004B
Own station's CPU
status
Stores the own station's status.
00
H
: No module mounted
01
H
: STOP (Normal)
02
H
: STOP (Stop error occurring)
03
H
: STOP (Continuation error occurring)
04
H
: RUN (Normal)
05
H
: RUN (Continuation error occurring)
0E
H
: Reset in progress
0F
H
: Initial processing
SW004C Parameter setting status
Stores the parameter status.
0: Normal
1 or higher: Abnormal ( Page 246, Section 12.5)
(Condition)
• This is enabled when the Received parameter error (SB004D) is on.
SW0050
Data link start status
(own station)
Stores the results when cyclic transmission is started by Link start (own
station) (SB0000).
0: Normal
1 or higher: Abnormal ( Page 246, Section 12.5)
When Link start (own station) (SB0000) is turned off, the stored error
definition is cleared.
(Condition)
• This is enabled when Baton pass status (own station) (SB0047) is off.
SW0051
Data link stop status
(own station)
Stores the results when cyclic transmission is stopped by Link stop (own
station) (SB0001).
0: Normal
1 or higher: Abnormal ( Page 246, Section 12.5)
When Link stop (own station) (SB0001) is turned off, the stored error
definition is cleared.
(Condition)
• This is enabled when Baton pass status (own station) (SB0047) is off.
Number Name Description
Availability
Master
station
(safety
station)
Local
station