Mitsubishi Electric MELIPC MI5000 Series User Manual page 266

Appendix 7
This section shows the link special relays of this product.
Range for user ON/OFF and system ON/OFF.
• Range for user ON/OFF: SB0000 to SB001F
• Range for system ON/OFF: SB0020 to SB01FF
Precautions
Do not write data to special relays not listed in the link special relay list. Otherwise, there is a risk of a product malfunction.
No. Name
SB0000 Own station link start
SB0001 Own station link stop
SB0002 System link start
SB0003 System link stop
SB0006 Clear communications error count
SB0010 Temporary error disabled station
setting request
SB0011 Temporary error disabled station
setting clear request
SB0012 Reserved station specified temporary
clear request
APPX
264
Appendix 7 List of Link Special Relays
List of Link Special Relays
Description
Instructs the own station data link (cyclic transmission) to start.
• OFF: No start instruction
• ON: Start instruction (start-up time enabled)
<Conditions>
• Enabled when baton pass status of own station (SB0047) is OFF
• Enabled when only one point from SB0000 to SB0003 is ON
Instructs the own station data link (cyclic transmission) to stop.
• OFF: No stop instruction
• ON: Stop instruction (start-up time enabled)
<Conditions>
• Enabled when baton pass status of own station (SB0047) is OFF
• Enabled when only one point from SB0000 through SB0003 is ON
Specifies a start of data link (cyclic transmission) of the entire system. The station that gives the start
instruction specifies using 'link start/stop instruction details' (SW0000) and 'link start/stop station
instruction' (SW0001 to SW0008).
• OFF: No start instruction
• ON: Start instruction (start-up time enabled)
<Conditions>
• Enabled when baton pass status of own station (SB0047) is OFF
• Enabled when only one point from SB0000 to SB0003 is ON
Specifies a stop of data link (cyclic transmission) of the entire system. The station that gives the stop
instruction specifies using 'link start/stop instruction details' (SW0000) and 'link start/stop station
instruction' (SW0001 to SW0008).
• 0: No stop instruction
• 1: Stop instruction (start-up time enabled)
<Conditions>
• Enabled when baton pass status of own station (SB0047) is OFF
• Enabled when only one point from SB0000 to SB0003 is ON
Instruct a 0 clear for communications errors in the link special registers (SW0068 to SW006B, SW0074
to SW0077, SW007C to SW007F, SW0120 to SW015F).
• OFF: No clear instruction
• ON: Clear instruction (while on, clear instruction continues)
Requests configuration as a temporary error disabled station for the station specified by 'reserved
station temporary clear / temporary error disabled station settings' (SW0010 to SW0017).
• OFF: No request
• ON: Request
(If switched from ON to OFF, error content stored in 'Temporary error disabled station settings results'
(SW0054) is cleared. )
Requests a clearing as a temporary error disabled station for the station specified by 'reserved station
temporary clear / temporary error disabled station settings' (SW0010 to SW0017).
• OFF: No request
• ON: Request
(If switched from ON to OFF, error content stored in 'Temporary error disabled station clearing results'
(SW0055) is cleared.) )
Requests temporary clearing of the reserved station specification for the station specified by 'reserved
station temporary clear / temporary error disabled station settings' (SW0010 to SW0017).
• OFF: No request
• ON: Request
(If switched from ON to OFF, error content stored in 'Reserved station specified temporary clear request
results' (SW0056) is cleared.) )