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Description

The Allen-Bradley 1756-HIST1G is a specialized module designed for the ControlLogix platform, providing advanced historical data management capabilities. This Historic Machine Edition module integrates directly into the ControlLogix chassis, enabling efficient data logging and retrieval for industrial control applications. It is engineered to handle demanding data acquisition tasks while maintaining high reliability within the ControlLogix environment.

Features

  • Equipped with an AMD LX800 500 MHz x86 processor for robust local processing.
  • Features a precision real-time clock to ensure accurate time-stamping of historical data.
  • Includes 512 Kbytes of battery-backed SRAM for critical data retention.
  • Integrated Ethernet port (10/100T, IEEE 802.3) for seamless network communication.
  • Supports Compact Flash Type 2 storage with DMA support for expanded data capacity.
  • Integrated status LEDs and a 4-character alphanumeric display for immediate diagnostic feedback.
  • Internal rechargeable, non-removable lithium battery for memory backup.

Technical Specifications

Product Model 1756-HIST1G
Power Consumption 5 Watts (7 Watts Max)
Communication Ports 1 x Ethernet 10/100T (IEEE 802.3)
Processor AMD LX800 500 MHz x86
Cache Memory 128 K L1 / 128 K L2
Weight 0.35 kg
Manufacturer Allen-Bradley

Installation Guidelines

  • Ensure the ControlLogix chassis power is disconnected before installing or removing the module.
  • Handle the module using proper ESD (Electrostatic Discharge) precautions to prevent damage to internal components.
  • Slide the module into the designated slot in the chassis and secure it using the integrated latching mechanism.
  • Ensure adequate ventilation around the chassis to maintain operating temperatures within specified limits.
  • Verify that the Ethernet cable is securely connected and routed away from high-voltage power lines to minimize EMI interference.

FAQ

What is the primary function of the 1756-HIST1G?
The 1756-HIST1G is a Historic Machine Edition module used for logging and managing historical data directly within a ControlLogix system architecture.

Does this module require external power?
The module draws its power directly from the ControlLogix chassis backplane, consuming 5 Watts under normal operation.

Is the internal battery user-replaceable?
No, the module features a non-removable, rechargeable lithium battery designed for long-term memory backup.

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