1785-CHBM

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Overview of Allen-Bradley 1785-CHBM ControlNet Hot Backup Memory Cartridge

The Allen-Bradley 1785-CHBM is a hot backup memory cartridge designed specifically for the Allen-Bradley PLC-5 series within a ControlNet hot backup system. It provides 100K words of non-volatile user memory and enables backup operation mode to ensure continuous processing during faults or processor failures in redundant PLC configurations.

Key Features of 1785-CHBM

  • 100K words non-volatile memory capacity for user program and data storage.
  • Designed for use exclusively in ControlNet hot backup systems with PLC-5 processors.
  • Enables backup functionality by synchronizing programs and data between primary and backup processors.
  • Plug-in cartridge format fits into the EEPROM slot on PLC-5 controllers.
  • Compatible with ControlNet protocols and interfaces to ensure seamless failover.
  • Supports data table crossloading and program synchronization to maintain mirrored operation.
  • Facilitates rapid recovery and minimal downtime in redundant system setups.
  • Installation requires two PLC-5 controllers in separate 1771 chassis each fitted with a 1785-CHBM cartridge.
  • Designed to enhance system reliability and fault tolerance in critical automation applications.

Technical Specifications

Specification Details
Memory Type Non-volatile EEPROM
Memory Capacity 100K words
Installation Plug-in cartridge in PLC-5 EEPROM slot
Compatibility PLC-5 controllers, ControlNet hot backup systems
Functions Backup operation, program synchronization, data table crossloading
Operating Temperature 0 to 60 °C (32 to 140 °F)
Storage Temperature -40 to 85 °C (-40 to 185 °F)
Weight Approx. 0.25 lbs (0.11 kg)
Dimensions Fits standard PLC-5 EEPROM cartridge slot

Applications / Use Cases

The 1785-CHBM backup cartridge is critical in industrial settings requiring high availability and system redundancy. It is commonly used in manufacturing, process control, and mission-critical automation where failover capability and continuous operation are paramount.

1785-CHBM

$0.00

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Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

What is the condition of the product?

All products sold are New & Unused.

How fast is shipping?

All products are delivered within 2-8 business days depending on our stock location.

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