Link response time dip switch setting, Last chassis, On off – Rockwell Automation 1747-ASB Remote I/O Adapter User Manual

Page 73

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Publication 1747-UM006B-EN-P - June 2003

Configuration 4-19

Link Response Time DIP Switch Setting

The 1747-ASB module is shipped from the factory with the default
position ON (restricted).

Last Chassis

SW3 switch 4 is used for last chassis selection when the 1747-ASB
module is connected to a PLC-2, PLC-5, or SLC scanner (Catalog
Number 1747-SN)..

The 1747-ASB module is shipped from the factory with the default
position ON (not last chassis).

A 1747-ASB module should be configured as the last chassis when:

Its image crosses logical rack boundaries and no other adapter
uses a higher group number within its last logical rack.

It uses a portion of a logical rack and no other adapter uses a
higher group number within that logical rack.

SW3

Restricted

4

1

23

5
6

7

8

O

N

SW3

Unrestricted

4

1

23

5
6

7

8

O

N

SW1

SW2

SW3

1 2

3

4

5

6

7

8

O

N

Specialty I/O Mode
I/O Module Keying

Addressing Mode

Last Chassis/PLC-3 Backup

Link Response

Processor Restart Lockout

Hold Last State

Baud Rate

Primary/Complementary Chassis

ASB Module Image Size

Logical Group Number

Logical Rack Number

ON

OFF

Reserved

1 2

3

4

5

6

7

8

O

N

1 2

3

4

5
6

7

8

O

N

SW3

Not Last Chassis

4

1

23

5
6

7

8

O

N

SW3

Last Chassis

4

1

23

5
6

7

8

O

N

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