1756-HIST1G Allen-Bradley ControlLogix Datasheet & Technical Manual

Allen-Bradley

1756-HIST1G Allen-Bradley Historic Machine Edition Module ControlLogix Series

SKU: 1756-HIST1G

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Dimensions: 23.3 x 18.2 x 5.3 cm
Country of origin: USA
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Shipping port: Xiamen

Categories : All Products, Allen-Bradley, Allen-Bradley ControlLogix & CompactLogix

Tags : Allen-Bradley ControlLogix, Allen-Bradley ControlLogix Series, ControlLogix Modules, Data Historian Modules, Ethernet Communication Modules

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The Allen-Bradley 1756-HIST1G, also cataloged as the 1756-HIST1G Historic Machine Edition Module, operates as a dedicated hardware component for machine data history collection and storage processing within ControlLogix automation platforms.

Model Configuration Details

The 1756-HIST1G is a ControlLogix platform module designed for historical machine data management. It integrates embedded processing resources, Ethernet communication, real-time clock functions, and local storage interfaces for industrial data recording applications.

Hardware Specifications

Parameter	Specification
Model	1756-HIST1G
Brand	Allen-Bradley
Product Type	Historic Machine Edition Module
Series	ControlLogix Series
Origin	United States
Weight	0.35 kg
Shipping Dimensions	23.3 x 18.2 x 5.3 cm
Operating Temp	Not specified in supplied data
Power Consumption	5 Watts typical, 7 Watts maximum
Ethernet Port	1 x Ethernet 10/100T IEEE 802.3
Processor	AMD LX800 500 MHz x86
Battery	Rechargeable lithium battery, non-removable
System Memory	512 Kbytes battery-backed SRAM
Cache Memory	128 K L1 / 128 K L2
Storage Interface	Compact Flash Type 2 with DMA
Display Interface	Status LEDs and 4-character alphanumeric display
Clock Function	Precision real-time clock

ControlLogix Data Processing Architecture

The ControlLogix platform uses modular backplane communication for interaction between controllers, communication modules, and application-specific modules. The 1756-HIST1G provides dedicated processing resources for historical machine data functions while maintaining integration with the ControlLogix chassis environment.

The module includes Ethernet 10/100T communication capability and local Compact Flash Type 2 storage support. Memory management uses battery-backed SRAM and embedded processing hardware for data retention and execution tasks.

Ordering Information

The package configuration includes:

1 x Allen-Bradley 1756-HIST1G Historic Machine Edition Module

Additional ControlLogix system components are installed separately:

ControlLogix chassis
ControlLogix power supply
ControlLogix processor module
Ethernet communication modules

Field Installation Guidelines

Module Mounting

Install the module into a compatible ControlLogix chassis slot.
Confirm chassis power is removed before module insertion or removal.
Verify backplane connector alignment before securing the module.

Communication Connection

Connect Ethernet wiring according to IEEE 802.3 installation practices.
Keep communication cables separated from high voltage conductors.
Verify network configuration before enabling data communication.

Memory and Storage Handling

Confirm Compact Flash media compatibility before installation.
Do not remove storage media during active write operations.
Verify battery status indicators during scheduled maintenance checks.

Frequently Asked Questions

What is the main function of the 1756-HIST1G?

The 1756-HIST1G is a ControlLogix module designed for historical machine data processing and storage functions.

Does the 1756-HIST1G include Ethernet communication?

Yes. The module provides one Ethernet 10/100T IEEE 802.3 communication port.

What type of memory is used for data retention?

The module includes 512 Kbytes of battery-backed SRAM for retained memory storage.

What processor architecture is installed in the module?

The module uses an AMD LX800 500 MHz x86 embedded processor.

Does the module support Compact Flash storage?

Yes. The module supports Compact Flash Type 2 media with DMA capability.

Is the lithium battery replaceable by the user?

No. The supplied specification identifies the battery as rechargeable lithium and non-removable.

Can the module operate independently from a ControlLogix chassis?

No. The module is designed for installation within a compatible ControlLogix chassis system.

What indicators are available for module status monitoring?

The module provides status LEDs and a 4-character alphanumeric display for local status information.

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