Allen-Bradley 1756-IT16 User Manual

Rockwell Automation Publication 1756-UM540E-EN-P - December 2017 101
1756-OF8I Isolated Analog Output Module Chapter 5
That single controller behavior should result in the following:
1. Output is not owned until the Claim connection is made.
2. Any disruption in the Claim connection causes the I/O module to switch
to the Ready path.
3. When the Claim connection recovers from the disruption, the I/O
module switches back to Claim.
Multiple Controller Behavior
For multiple controllers, the applications synchronize the behavior between the
controllers. Note Ethernet modules A and B, and RedundantOutputA and
RedundantOutputB.
Figure 32 - Multiple Controller
RUN PROG
REM
Logix5585E
NET
LINK
SAFETY ON
2
1
NETLNK2 OKLNK1
2
1
NETLNK2 OKLNK1
2
1
NETLNK2 OKLNK1
FLT
ST
FLT
ST
01234567
01234567
8 9 10 11 12 13 14 15
8 9 10 11 12 13 14 15
DC INTPUT
FLT
ST
FLT
ST
01234567
01234567
8 9 10 11 12 13 14 15
8 9 10 11 12 13 14 15
DC OUTPUT
ST
ST
01234567
8 9 10 11 12 13 14 15
ANALOG INPUT
O
K
FLT
ST
FLT
ST
01234567
01234567
8 9 10 11 12 13 14 15
8 9 10 11 12 13 14 15
DC OUTPUT
ST
ST
01234567
8 9 10 11 12 13 14 15
ANALOG INPUT
O
K
RUN PROG
REM
Logix5585E
NET
LINK
SAFETY ON
2
1
NETLNK2 OKLNK1
FLT
ST
FLT
ST
01234567
01234567
8 9 10 11 12 13 14 15
8 9 10 11 12 13 14 15
DC INTPUT
FLT
ST
FLT
ST
01234567
01234567
8 9 10 11 12 13 14 15
8 9 10 11 12 13 14 15
DC OUTPUT
ST
ST
01234567
8 9 10 11 12 13 14 15
ANALOG INPUT
O
K
FLT
ST
FLT
ST
01234567
01234567
8 9 10 11 12 13 14 15
8 9 10 11 12 13 14 15
DC OUTPUT
ST
ST
01234567
8 9 10 11 12 13 14 15
ANALOG INPUT
O
K
FLT
ST
FLT
ST
01234567
01234567
8 9 10 11 12 13 14 15
8 9 10 11 12 13 14 15
DC INTPUT
FLT
ST
FLT
ST
01234567
01234567
8 9 10 11 12 13 14 15
8 9 10 11 12 13 14 15
DC OUTPUT
ST
ST
01234567
8 9 10 11 12 13 14 15
ANALOG INPUT
O
K
FLT
ST
FLT
ST
01234567
01234567
8 9 10 11 12 13 14 15
8 9 10 11 12 13 14 15
DC OUTPUT
ST
ST
01234567
8 9 10 11 12 13 14 15
ANALOG INPUT
O
K
32762-M
IMPORTANT
If you use ControlLogix Redundancy as the multiple controller system, then you
do not have to manage the dual controllers. If you use any other method, then
you must manage the primary and secondary controllers yourself. This
application does not manage the controllers, just the I/O.

Allen-Bradley 1756-IT16 Specifications

General

Brand	Allen-Bradley
Model	1756-IT16
Category	I/O Systems
Language	English