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

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