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APPX
Appendix 5 List of Link Special Register (SW)
SW006D Master operating station
number
Stores the station number of a master operating station.
0: No submaster function setting
1 to 120: Station number of the submaster station (master operating station)
125: Master station (master operating station)
(Conditions)
• This register is enabled when 'Baton pass status of own station' (SB0047) is off.
• When 'Baton pass status of own station' (SB0047) is turned on (error), data prior
to error is held.
SW006E Submaster operating
station number
Stores the station number of a submaster operating station.
0: No submaster function setting
1 to 120: Station number of the submaster station (submaster operating station)
125: Master station (submaster operating station)
(Conditions)
• This register is enabled when 'Baton pass status of own station' (SB0047) is off.
• When 'Baton pass status of own station' (SB0047) is turned on (error), data prior
to error is held.
SW0070 Loopback station
number 1
Stores the number of the station where loopback is being performed.
0: No loopback stations
1 to 120: Station number of the slave station or submaster station carrying out
loopback
125: Master station carrying out loopback
255: Station with no station number set carrying out loopback
If loopback occurs at a station whose station number is duplicated, the station
number is stored in this register.
(Conditions)
• This register is enabled when 'Baton pass status of own station' (SB0047) is off
and 'Network configuration mismatch occurrence status' (SB0098) is off.
• When 'Baton pass status of own station' (SB0047) is turned on (error), data prior
to error is held.
(Master
operating
station only)
SW0071 Loopback station
number 2
SW0074 PORT1 cable
disconnection detection
count
Stores the cumulative count that was detected for cable disconnections at the P1
side.
When 'Clear communication error count' (SB0006) is turned on, the stored value for
the number of errors is cleared.
When FFFFH (maximum value 65535) is counted, the value returns to 0 and the
module continues to count.
SW0075 PORT1 receive error
detection count
Stores the cumulative count that error data was received at the P1 side.
The count stores only error data that is not transmitted to all stations.
When 'Clear communication error count' (SB0006) is turned on, the stored value for
the number of errors is cleared.
When FFFFH (maximum value 65535) is counted, counting stops.
SW0076 PORT1 total no. of
received data (lower 1
word)
Stores the cumulative count that data was received at the P1 side.
When 'Clear communication error count' (SB0006) is turned on, the stored value for
the number of errors is cleared.
When FFFFFFFFH (maximum value 4294967295) is counted, counting stops.
SW0077 PORT1 total no. of
received data (upper 1
word)
SW007C PORT2 cable
disconnection detection
count
Stores the cumulative count that was detected for cable disconnections at the P2
side.
When 'Clear communication error count' (SB0006) is turned on, the stored value for
the number of errors is cleared.
When FFFFH (maximum value 65535) is counted, the value returns to 0 and the
module continues to count.
SW007D PORT2 receive error
detection count
Stores the cumulative count that error data was received at the P2 side.
The count stores only error data that is not transmitted to all stations.
When 'Clear communication error count' (SB0006) is turned on, the stored value for
the number of errors is cleared.
When FFFFH (maximum value 65535) is counted, counting stops.
SW007E PORT2 total no. of
received data (lower 1
word)
Stores the cumulative count that data was received at the P2 side.
When 'Clear communication error count' (SB0006) is turned on, the stored value for
the number of errors is cleared.
When FFFFFFFFH (maximum value 4294967295) is counted, counting stops.
SW007F PORT2 total no. of
received data (upper 1
word)
No. Name Description Availability
Master
station
(submaster
station)
Local
station
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