Rockwell Automation 1771-ASB/E Remote I/O Adapter User Manual - Manual (Page 55)

3–25 Addressing Modes for Your Remote I/O
Publication 1771-UM001A-US-P - February 2000
Table 3.C shows the addressing methods you can achieve with the
Series B chassis and the various remote I/O adapter modules.
Table 3.C
Series B Chassis/Adapter Module Combinations
Remote I/O Adapter Module
Catalog Number
I/O Points
Per Module
Addressing Mode
2ĆSlot 1ĆSlot 1/2ĆSlot
1771ĆAS 8 Yes No No
16 * No No
32 No No No
1771ĆASB
Series A
8 Yes Yes No
Series A
16 * Yes No
32 No No No
1771ĆASB
Series B C D and E
8 Yes Yes Yes
Series B, C, D and E
16 * Yes Yes
32 No * Yes
* Conditional module placement: you must use an input module and an output
module in two adjacent slots of the I/O chassis beginning with slot 0.
IMPORTANT: Series A I/O chassis let you use 2Ćslot addressing with 8Ćpoint
I/O modules only, regardless of the type of adapter module you use. This chart
is valid for series B I/O chassis. You need series B I/O chassis to achieve 1Ćslot
and 1/2Ćslot addressing with 16Ćpoint and 32Ćpoint I/O modules.
In this chapter we discussed how to address your hardware and the
various remote I/O configurations and options you can use in your
remote system.
I/O Chassis/Adapter
Module Combinations
Summary