Rockwell Automation 1715-OF8I Redundant I/O System User Manual - Manual (Page 225)

Rockwell Automation Publication 1715-UM001C-EN-P - March 2014 225
Using SIL 2 Add-On Instructions with 1715 Redundant I/O Modules Chapter 7
A SIL 2 Reset can be used to reset this condition.
The following figures illustrate how the Add-On Instructions work with input
and output data.
Figure 65 - Diagram of Input Module Add-On Instruction
IO BASE 1715-A310
CH1 CH1 CH1 CH1 CH1 CH1 CH1 CH1
TERMINAL IDENTITY
AOTA Dual.
CH1 CH1 CH1 CH1 CH1 CH1 CH1 CH1
TERMINAL IDENTITY
AOTA Dual.
CH1 CH1 CH1 CH1 CH1 CH1 CH1 CH1 TERMINAL IDENTITY
AOTA Dual.
1715-AENTR 1715-AENTR
1715-A2A 1715-A3IO
1715-IF16 1715-IF16
1715-
TASIF16
1715-
TASIF16
IF16_Duplex_SIL2 Add-On Instruction 1715-IF16 Data Packet
SIL 2 Check Data
1715-IF16 Configuration Tag
Safe State Defaults
Module Configuration
Check Data
SIL 2 Check Data
Module Configuration
Check Data
Safe State Defaults
Input Data Input Data
Reconciled
Input Data
The Add-On
Instruction verifies
the check data.
Dat
a is
va
lid.
Data
is no
t valid
.
1756 Controller Tags
Reconciled
Input Data
Important: The 1715-IF16 module is shown, but the example also applies to the 1715-IB16D module.