Rockwell Automation 1771-ASB/E Remote I/O Adapter User Manual User Manual
Page 75
Settings for 1771–AS and 1771–ASB Series A, B, C and D Remote I/O Adapters
B–13
Publication 1771ĆUM001A-US-P - February 2000
Figure B.14
I/O Chassis Backplane Switch Assembly Settings for for
1771-ASB series C and D Remote Adapter Module in PLCĆ2
Family Processor System
Processor Restart Lockout Ć
When ON, processor can restart I/O chassis
When OFF, I/O chassis must be restarted at the chassis.
Addressing Switch Ć
ON Ć 1Ćslot addressing selected
OFF Ć 2Ćslot addressing selected
Last State Switch Ć
When ON, outputs of this chassis remain
in last state.
When OFF, outputs of this I/O chassis are
deenergized when a fault is detected.
Always OFF
Last Chassis Switch Ć
ON Ć Chassis does not contain the highest numbered I/O
group for the associated rack number
OFF Ć Chassis does contain the highest numbered I/O
group for the associated rack number
If you haveonly a primary chassis, set this
switch to OFF.
If you have both primary and complementary
chassis, set the primary chassis to ON and the
complementary chassis to OFF.
1080
ATTENTION: Set switch 1 to the OFF position
to deenergize outputs wired to this chassis when a
fault is detected. If switch 1 is set to the ON
position, outputs connected to this chassis remain
in their last state when a fault occurs and machine
motion may continue after fault detection.
O
O
12
3
456
7
8
N
F
F
Always OFF
Figure B.15
I/O Chassis Backplane Switch Assembly Settings for
1771-ASB series C and D Remote Adapter Module in PLCĆ3
Family Processor System
Processor Restart Lockout Ć
When ON, processor can restart I/O chassis
When OFF, I/O chassis must be restarted at the chassis.
Last State Switch Ć
When ON, outputs of this chassis remain in last state.
When OFF, outputs of this I/O chassis are deenergized
when a fault is detected.
Always OFF
10802ĆI
ATTENTION: Set switch 1 to the OFF position
to deenergize outputs wired to this chassis when
a fault is detected. If switch 1 is set to the ON
position, outputs connected to this chassis remain
in their last state when a fault occurs and machine
motion may continue after fault detection.
O
O
12
34
56
78
N
F
F
OFF
ON
You select 1/2Ćslot addressing
ON
OFF
You select 1Ćslot addressing
OFF
OFF
You select 2Ćslot addressing
ON
ON
Not allowed
Addressing Switches
5
6
1771ĆA1/A1B chassis in PLCĆ3 Backup
ON Ć If any 1771ĆA1/A1B chassis contains
starting I/O group 0 with 2Ćslot addressing
and the PLCĆ3 is configured in backup mode.
OFF Ć All other times.