Product Overview
The Allen-Bradley 1756-HIST1G is a FactoryTalk Historian Machine Edition (ME) module from the ControlLogix series. This industrial automation module collects and stores historical data from multiple controllers, enabling data-driven decisions and process optimization. With a compact single-slot design and fanless operation, the 1756-HIST1G integrates seamlessly into existing ControlLogix chassis.
Technical Specifications
| Parameter |
Value |
| Manufacturer |
Rockwell Automation |
| Brand |
Allen-Bradley |
| Part Number |
1756-HIST1G |
| Series |
ControlLogix |
| Power Consumption |
5 Watts (7 Watts Max) |
| Ports |
1 Ethernet 10/100T IEEE 802.3 |
| Battery |
Rechargeable Lithium (Non-Removable) |
| Clock |
Precision Real-Time Clock |
| Indicators |
Status LEDs and 4-Character Alphanumeric Display |
| System Memory |
AMD LX800 500 MHz x86 |
| Battery-Backed Memory |
512 Kbytes SRAM |
| Cache Memory |
128 K L1/128 K L2 |
| Compact Flash Memory |
Compact Flash Type 2 w/ DMA |
| Dimensions |
5.6 x 1.4 x 5.5 in (145 x 35 x 140 mm) |
| UPC |
10612598572868 |
The 1756-HIST1G operates on 5.1V DC at 800 mA and 24V DC at 3 mA. It supports a non-operating temperature range of -40 to 185 °F and an operating range of 32 to 140 °F.
Industry Applications
This module suits manufacturing plants, process industries, and utilities where historical production data drives efficiency improvements. For example, in a bottling line, the 1756-HIST1G collects data from multiple PLCs to track throughput and downtime. In a water treatment facility, it logs sensor trends to optimize chemical dosing. Its 512 KB battery-backed SRAM ensures data retention during power interruptions.
Installation & Setup
Install the 1756-HIST1G into any ControlLogix chassis slot. Connect the Ethernet port to your network using a standard RJ45 cable. Ensure proper grounding and adequate airflow for fanless cooling. Configure the module via FactoryTalk Historian software; the backplane communication automatically collects data from controllers in the same chassis.
Maintenance & Reliability
The rechargeable lithium battery maintains SRAM data for years, but periodic checks of the status LEDs help monitor health. Keep the module within specified temperature ranges to prevent overheating. Regular firmware updates from Rockwell Automation ensure optimal performance. The fanless design reduces mechanical failure points, lowering maintenance costs.
Compatibility & Integration
The 1756-HIST1G integrates with ControlLogix platforms and communicates via Ethernet 10/100T IEEE 802.3. It supports FactoryTalk Historian ME software for data visualization and reporting. Use it with any ControlLogix controller to aggregate data from multiple sources.
Selection Guide
Before purchasing, verify your chassis compatibility and software requirements. Ensure the module's power budget fits your system. For reliable sourcing, consider PLC Source PRO as a trusted supplier of genuine automation spares.