1 - introducing block i/o, Chapter objectives, General description – Rockwell Automation 1791-XXXX Discrete I/O AC and DC Block I/O Input and Output Modules User Manual

Page 8: Introducing discrete block i/o, Chapter objectives general description

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Chapter

1

1-1

Introducing Discrete Block I/O

In this chapter, you will learn what ac and dc block I/O is, its features, and
how it functions.

Block I/O modules are small, self-contained remote I/O devices complete
with power supply, programmable controller interface, input/output
connections and signal conditioning circuitry.

Table 1.A

Types of Discrete Block I/O

Catalog Number

Voltage

Inputs Outputs

Description

1791Ć16A0/B

120V ac

16

16 input, 0 output

1791Ć0A16/B

120V ac

16

0 input, 16 output

1791Ć8AC/B

120V ac

8

8

8 input, 8 output

1791Ć8AR/B

120V ac

8

8

8 input, 8 relay output

1791Ć32A0/B

120V ac

32

32 input, 0 output

1791Ć0A32/B

120V ac

32

0 input, 32 output

1791Ć16AC/B

120V ac

16

16

16 input, 16 output

1791Ć24A8/B

120V ac

24

8

24 input, 8 output

1791Ć24AR/B

120V ac

24

8

24 input, 8 relay output

1791Ć16B0/B

24V dc

16

16 input, 0 output

1791Ć0B16/B

24V dc

16

0 input, 16 output

1791Ć8BC/B

24V dc

8

8

8 input, 8 output

1791Ć8BR/B

24V dc

8

8

8 input, 8 relay output

1791Ć32B0/B

24V dc

32

32 input, 0 output

1791Ć0B32/B

24V dc

32

0 input, 32 output

1791Ć16BC/B

24V dc

16

16

16 input, 16 output

1791Ć24B8/B

24V dc

24

8

24 input, 8 output

1791Ć24BR/B

24V dc

24

8

24 input, 8 relay output

1791ĆIOBX

1

24V dc

64

64

64 sinking input, 64 sourcing output

1791ĆIOVX

1

24V dc

64

64

64 sourcing input, 64 sinking output

1791ĆIOBW

1

24V dc

32

32

32 sinking input, 32 sourcing output

1791ĆIOVW

1

24V dc

32

32

32 sourcing input, 32 sinking output

1

Not covered in this manual. Refer to individual user manuals for these products.

Chapter Objectives

General Description

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