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No.
Name
Description
Availability
Control
station
Normal
station
SB0052
System link stop request
accept status
Stores the acceptance status of 'System link stop' (SB0003).
Off: Not accepted (SB0003 is off.)
On: Accepted (SB0003 is on.)
(Conditions)
• This relay is enabled when 'Baton pass error status of own station' (SB0047) is off. When
'Baton pass error status of own station' (SB0047) is turned on (error), data prior to error is
held.


SB0053
System link stop
completion status
Stores the status of link stop processing requested with 'System link stop' (SB0003).
Off: Not completed (SB0003, SB0056 are off.)
On: Completed (SB0003, SB0056 are on.)
(Conditions)
• This relay is enabled when 'Baton pass error status of own station' (SB0047) is off. When
'Baton pass error status of own station' (SB0047) is turned on (error), data prior to error is
held.


SB0054
Parameter reception
status
Stores the status of parameter reception.
For the control station, this relay stores the status of parameter reception from the CPU
module.
For the normal station, this relay stores the status of parameter reception from the control
station.
Off: Reception completed
On: Reception not completed


SB0055
Received parameter error
Stores the status of received parameter. (Own parameter status is stored for the control
station.)
Off: Parameters normal
On: Parameter error


SB0056
Communication status
Stores the transient transmission status.
Off: Transient transmission by the control station
On: Transient transmission by the sub-control station
(Conditions)
• This relay is enabled when 'Baton pass error status of own station' (SB0047) is off. When
'Baton pass error status of own station' (SB0047) is turned on (error), data prior to error is
held.


SB005A
Parameter type of control
station
Stores the station type (mode) of the control station.
Off: Control station
On: Extended mode (control station)


SB005B
CPU operating status of
own station
Stores the operating status of the CPU module on the own station.
Off: RUN
On: STOP, PAUSE, or moderate/major error


SB005C
Block 1 I/O master station
Stores the I/O master station settings status of block 1 (LX/LY setting (1)).
Off: No setting
On: Set
When this relay is turned on, the station number is stored in 'Block 1 I/O master station'
(SW005C).
(Conditions)
• This register is enabled when 'Data link error status of own station' (SB0049) is off.


SB005D
Block 2 I/O master station
Stores the I/O master station settings status of block 2 (LX/LY setting (2)).
Off: No setting
On: Set
When this relay is turned on, the station number is stored in 'Block 2 I/O master station'
(SW005D).
(Conditions)
• This register is enabled when 'Data link error status of own station' (SB0049) is off.


SB005E
CPU type of own station
Stores the CPU type of the own station.
Off: RCPU


SB0060
Constant link scan status
Stores the constant link scan status.
Off: No constant link scan time setting
On: Set
(Conditions)
• This register is enabled when 'Data link error status of own station' (SB0049) is off.


SB0061
Cyclic transmission
punctuality assurance
Stores the status of cyclic transmission punctuality assurance.
Off: Not assured
On: Assured
(Conditions)
• This register is enabled when 'Data link error status of own station' (SB0049) is off.


APPENDICES
Appendix 3 List of Link Special Relay (SB)
117
A