What Is the 1756-HIST1G?
Data loss on the plant floor costs money. The Allen-Bradley 1756-HIST1G solves that problem by bringing FactoryTalk Historian Machine Edition directly into the ControlLogix chassis. This single-slot module collects and stores process data at the source, so production history stays intact even when the network goes down.
Built by Rockwell Automation, the 1756-HIST1G carries 1GB of CompactFlash Type II memory with DMA. It is a practical, ready-to-ship answer for oil, gas and industrial automation teams that need reliable data logging without adding a separate PC.
Key Parameters at a Glance
| Specification | Value |
|---|---|
| Series | ControlLogix |
| Function | FactoryTalk Historian ME, 1GB |
| Memory | 1GB CompactFlash Type II w/ DMA |
| Form Factor | Single-slot ControlLogix |
| Dimensions | 145 x 35 x 140 mm (5.6 x 1.4 x 5.5 in) |
| Mounting | ControlLogix chassis, backplane communication |
Because the module sits in the chassis, it talks to controllers over the backplane and can gather data from multiple controllers at once. That single-slot footprint keeps cabinet space free for other I/O.
Where It Fits in Real Plants
Oil and gas production. Remote well pads and compressor stations often run on limited connectivity. The 1756-HIST1G keeps logging locally, so operators can review trends after a comms outage instead of losing the window entirely.
Batch and process manufacturing. When a batch fails, engineers need the history. Storing data in the chassis means the record survives network faults and gives the team something concrete to work from.
Upgrade projects. Teams replacing older data-collection PCs often choose this module because it removes a separate computer from the cabinet and simplifies the architecture.
Comparison: Historian ME vs. Common Alternatives
- 1756-HIST1G (this module): in-chassis data collection, 1GB CompactFlash, backplane access to multiple controllers, no external PC required.
- External historian server: more storage, but adds a PC, OS licensing, and a network dependency.
- Controller-local logging: limited capacity and tied to one controller only.
For plants that want history close to the process, the in-chassis approach is the practical choice.
Installation and Maintenance Notes
Install the 1756-HIST1G in a ControlLogix chassis like any single-slot module. It uses backplane communications, so no separate data cabling is needed for controller access. Keep the cabinet within the module’s operating temperature range and follow the manufacturer’s manual for environmental limits.
Maintenance is straightforward: inspect the module periodically, confirm the status indicators are normal, and follow Rockwell Automation’s published procedures for any service work. Do not attempt internal repairs.
Please verify current lifecycle status and availability with Oil AutoTech before ordering.
Why Buy From Oil AutoTech
Oil AutoTech focuses on fast-dispatch spares for oil, gas and industrial automation. If you need the 1756-HIST1G quickly, the team can confirm stock, pricing and lead time without the runaround. Hands-on technical selection help is available when you are matching the module to an existing ControlLogix system.
Contact Oil AutoTech today for pricing and availability.
