A six-channel isolated voltage output module designed for ControlLogix architectures where individual field-side isolation and bipolar analog output are important.
01 / CORE PARAMETERS
Technical Profile
Six isolated channels for demanding analog output tasks
The 1756-OF6VI provides six individually isolated voltage outputs with a ±10.5 V signal range. Its point-by-point isolation is useful when separate field circuits must be kept electrically distinct. The module also provides status indications for module health, calibration state and operating mode.
Module type
ControlLogix 6-point isolated analog output module
Output channels
6 individually isolated voltage outputs
Output range
±10.5 V
Resolution
14 bits across 21 V; 13 bits across 10.5 V plus sign bit
Isolation
250 V continuous between outputs
Point isolation
Per-point isolation helps separate field circuits
Status display
Module Health, In Calibration, and Mode indications
Backplane role
Installed in a ControlLogix chassis and configured as an analog output module
Termination
1756-TBNH or 1756-TBSH removable terminal blocks
Lifecycle
Discontinued; functional replacement category is listed by Rockwell Automation
02 / FAMILY RELATION
ControlLogix Family Position
Why the OF6VI is different
Compared with the 1756-OF4, the OF6VI concentrates on isolated voltage output rather than combining voltage/current output capability. The 1756-OF6CI serves the isolated current-output role. Selection therefore comes down to signal type, channel count and whether point isolation is required.
Selection logic
Choose 1756-OF6VI when six individually isolated voltage channels and a bipolar ±10.5 V range match the field devices. Keep the terminal-block choice aligned with the chassis wiring design and verify the module series and firmware compatibility before replacement.
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BUYER QUESTIONS
Five Practical Questions About the Model
01 · When is 1756-OF6VI a better choice than 1756-OF4?
Choose the OF6VI when six voltage-only outputs with individual isolation are the priority. The OF4 provides four outputs and supports either voltage or current, so it serves a different selection objective.
02 · Does 1756-OF6VI provide isolation between output points?
Yes. Rockwell Automation specifies 250 V continuous isolation between outputs and identifies the module as having per-point isolation.
03 · What signal range should be expected from 1756-OF6VI?
The output signal is ±10.5 V. The published selection data specifies 14-bit resolution across 21 V, with 13 bits across 10.5 V plus a sign bit.
04 · Which terminal block family is used with 1756-OF6VI?
The ControlLogix selection data associates the module with 1756-TBNH and 1756-TBSH removable terminal blocks. Match the terminal-block arrangement to the actual installation.
05 · What should be checked when replacing an existing 1756-OF6VI?
Check the exact catalog number and series, chassis position, terminal block, firmware/configuration compatibility and the required output signal range. Because the product is discontinued, confirm the replacement path before changing a running system.