106 Rockwell Automation Publication 1756-UM540E-EN-P - December 2017
Chapter 5 1756-OF8I Isolated Analog Output Module
Input Modules
Many ControlLogix® 1756 input modules support multiple owners.
Table 22
lists bulletin number 1756 input modules that do not support multiple
module owners.
TIP Only a received 0-to-1 transition, and not simply the receipt of a new
connection, is considered such a transition for ownership.
IMPORTANT You must use input modules that support multiple owners.
Table 22 - Input modules that do not support multiple owners
Catalog
Number
Module Type Replacement Module
1756-IR12 Analog Input, 12-channel RTD Must replace with a 1756-ITR8I and use in 1756-IR6I
compatibility mode. You will lose 6 channels. Your inputs
will be isolated.
1756-IT16 Analog Input, 16-channel non-
isolated thermocouple/mV
Replace with1756-IRT8I and use in 1756-IT6I or 1756-IT6I2
compatibility mode.
1756-IRT8I Analog Input, 8-channel
thermocouple or RTD isolated
Must be used in 1756-IR6I or 1756-IT6I compatibility mode.
You will lose 2 channels and all of the new features of the
1756-IRT8I module.
Use the 1756-ITR8I module in remote I/O chassis and 1756-
IR6I or 1756-IT6I module in Logix Designer I/O configuration.
1756-IF8I Analog Input, 8-channel current
or voltage isolated
Must be used in 1756-IF6I compatibility mode. You will lose
2 channels and all of the new features of the 1756-IF8I
module.
Use the 1756-IF8I in remote I/O chassis and 1756-IF6I in
Logix Designer I/O Configuration.
1756-IB16ISOE Sequence of Events Digital Input —
1756-IF16IH
1756-IF8IH
16 isolated differential inputs,
1 HART modem per channel
8 isolated differential inputs,
1 HART modem per channel
Use 1756-IF16H.
Use 1756-IF8H.
Both are non-isolated. You can use differential mode input
wiring for isolation.
1756-IF4FXOF2F High-speed input/output
analog module
—
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