Part of the Allen-Bradley ControlLogix family.
Overview
1756 I/O modules: 1756-IB (DC inputs), 1756-OB (DC outputs), 1756-IF (analog inputs), 1756-OF (analog outputs).
Within the Allen-Bradley ControlLogix line, ControlLogix 1756 I/O Modules part numbers carry the 1756-HSC, 1756-HYD, 1756-I, 1756-M, 1756-O, 1756-TB, 1756-IB and 1756-IF prefixes. Palm Parts Solution catalogues 78 distinct ControlLogix 1756 I/O Modules part numbers, including 1756-HSC, 1756-IF8, 1756-OA8 and 1756-OB8.
The catalogued part numbers are classified across 7 product types: Digital Output Modules (19), Analog Input Modules (16), Digital Input Modules (15) and Modular PLCs (13), plus 3 further product types.
Ratings, physical format and revision level differ from one ControlLogix 1756 I/O Modules part number to the next; the individual product page carries the data recorded for that specific item.
ControlLogix 1756 I/O Modules parts
Specifications
| Attribute | Detail |
|---|---|
| Manufacturer | Allen-Bradley |
| Product family | ControlLogix |
| Series | ControlLogix 1756 I/O Modules |
| Part-number prefixes | 1756-HSC, 1756-HYD, 1756-I, 1756-M, 1756-O, 1756-TB, 1756-IB, 1756-IF |
| Distinct part numbers catalogued | 78 |
| Product types represented | 7 |
| Condition | New, Refurbished, or Surplus (varies by listing) |
Part numbers by product type
- Digital Output Modules — 19 part numbers catalogued (e.g. 1756-OA8, 1756-OB8, 1756-OA16, +16 more)
- Analog Input Modules — 16 part numbers catalogued (e.g. 1756-IF8, 1756-IF16, 1756-IF6I, +13 more)
- Digital Input Modules — 15 part numbers catalogued (e.g. 1756-IA16, 1756-IA32, 1756-IB16, +12 more)
- Modular PLCs — 13 part numbers catalogued (e.g. 1756-TBE, 1756-IC16, 1756-TBCH, +10 more)
- Analog Output Modules — 8 part numbers catalogued (e.g. 1756-OF4, 1756-OF8, 1756-OF8H, +5 more)
- Specialty / High-Speed I/O — 6 part numbers catalogued (e.g. 1756-IG16, 1756-IN16, 1756-OG16, +3 more)
- EtherNet/IP Modules — 1 part number catalogued (e.g. 1756-HSC)
How to read these part numbers
Every item in this series is listed under its full Allen-Bradley part number, so the 1756-HSC, 1756-HYD and 1756-I reference on the nameplate is the reference to search. Where a part number exists in more than one hardware or firmware revision, the revision recorded for the item appears on its product page. Specifications not recorded in our catalogue for a given part number are confirmed with the sourcing team before quoting.
Compatible series
Product types in this series
Related knowledge
Frequently asked questions
What does the ControlLogix 1756 I/O Modules series include?
The ControlLogix 1756 I/O Modules series is part of the ControlLogix family from Allen-Bradley. It groups related catalog numbers that share form factor, I/O type and communication protocol — making it easy to find drop-in replacements.
Is ControlLogix 1756 I/O Modules compatible with newer Allen-Bradley hardware?
In most cases yes. ControlLogix 1756 I/O Modules units interoperate with current Allen-Bradley programming software and communication backbones. Contact us with your firmware revision and we will confirm before shipping.
Can I get ControlLogix 1756 I/O Modules parts refurbished with warranty?
Yes. We offer refurbished ControlLogix 1756 I/O Modules modules tested to OEM specs with a 1-year replacement warranty. New surplus stock is also available when supply permits.
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New, surplus, and refurbished industrial automation options. Request a quote or speak directly with an automation specialist for emergency sourcing.