Switch Setting Reference

E-5

 

 

1771-ASB Remote I/O Adapter or 1771-ALX Extended-Local I/O Adapter

Always

Off

Always

Off

 

 

Switch

 

 

Last State

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

on

Outputs of this I/O chassis remain in their last state when a communication

 

 

fault is detected by this I/O adapter. 1

 

 

 

 

 

 

 

 

 

 

off

Outputs of this I/O chassis are turned off when a communication

 

 

fault is detected by this I/O adapter.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Switch

 

Processor Restart Lockout

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

on

Processor can restart the I/O chassis after a communication fault. 2

 

 

 

 

 

 

 

 

 

 

 

 

off

You must manually restart the I/O chassis with a switch wired to the

 

 

 

1771-AS or -ASB.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Switches

Addressing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pressed in

 

 

off

 

off

2-slot

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

at top ON (closed)

 

 

on

 

off

1-slot 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pressed in

 

 

off

 

on

1/2-slot 3

 

 

 

 

 

 

 

 

 

at bottom OFF (open)

 

 

on

 

on

Not allowed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

19308

Publication 1785-UM012D-EN-P - July 2005

Page 343
Image 343
Bradley Smoker PLC-5 user manual Always Off Switch Last State, AS or -ASB Switches Addressing Pressed