The Allen-Bradley 1756-HIST1G is a specialized ControlLogix module designed for high-performance data logging and historic machine management within an industrial automation environment. This module integrates seamlessly into the ControlLogix chassis, providing robust data acquisition capabilities and maintaining precise timing for system diagnostics and historical record-keeping.
Features
Integrated AMD LX800 500 MHz x86 processor for efficient data management.
Equipped with a precision real-time clock for accurate timestamping of logged events.
Includes a dedicated 10/100T Ethernet port compliant with IEEE 802.3 standards for network connectivity.
Features a 4-character alphanumeric display and status LEDs for immediate visual diagnostics.
Supports Compact Flash Type 2 storage with DMA support for reliable data expansion.
Includes 512 Kbytes of battery-backed SRAM and cache memory (128 K L1 / 128 K L2).
Technical Specifications
Product Model
1756-HIST1G
Power Consumption
5 Watts (7 Watts Max)
Processor
AMD LX800 500 MHz x86
Ethernet Port
1x 10/100T IEEE 802.3
Memory
512 Kbytes Battery-Backed SRAM
Storage
Compact Flash Type 2 w/ DMA
Battery
Rechargeable Lithium (Non-Removable)
Weight
0.35 kg
Installation Guidelines
Ensure the ControlLogix chassis is powered down before inserting or removing the 1756-HIST1G module to prevent electrical damage.
Verify that the module is fully seated in the chassis slot and the locking tabs are engaged.
Maintain proper ventilation in the control cabinet to keep the module within its specified operating temperature range.
Use shielded Ethernet cabling for the 10/100T port to minimize interference from high-voltage equipment or EMI sources.
Follow standard ESD protection procedures when handling the module to avoid damage to internal components.
FAQ
What is the primary function of the 1756-HIST1G?
This module serves as a Historic Machine Edition interface for the ControlLogix platform, acting as a dedicated data logging and processing unit for tracking machine performance and historical operational data.
Does the module require external power?
The 1756-HIST1G draws its power directly from the ControlLogix chassis backplane. It consumes 5 Watts under normal conditions, with a maximum draw of 7 Watts.
Is the battery replaceable?
No, the module utilizes a non-removable, rechargeable lithium battery designed to maintain the battery-backed SRAM during power cycles.
