Allen-Bradley 1785-ME16
Allen-Bradley 1785-ME16
Allen-Bradley 1785-ME16
Allen-Bradley 1785-ME16
Allen-Bradley 1785-ME16
Allen-Bradley 1785-ME16
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  • Lifecycle status

    Discontinued
    Discontinued date: 2021-09-30
    Replacement category: Engineering Replacement

1785-ME16

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Allen-Bradley 1785-ME16 is a 16K-word nonvolatile EEPROM memory module for compatible enhanced and Ethernet PLC-5 processors, with removable-jumper write protection.
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Technical specifications for 1785-ME16

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1785-ME16
  • Product Family:
    PLC-5
  • Product Type:
    16K EEPROM Memory Module
  • Stock:
    1
  • Memory Technology:
    EEPROM
  • Memory Capacity:
    16K words
  • Memory Type:
    Nonvolatile
  • Write Protection:
    Enabled by removing the jumper
  • Compatible Platform:
    Supported Enhanced PLC-5 processors
  • Operating Temperature:
    0 to 60°C
  • Storage Temperature:
    -40 to 85°C
  • Relative Humidity:
    5% to 95%, non-condensing
  • Operating Shock:
    15 g peak acceleration for 11 ms
  • Non-operating Shock:
    3 g peak acceleration for 11 ms
  • Vibration:
    2 g peak acceleration at 10 to 500 Hz
  • Dimensions:
    13.5 × 7 × 1 cm
  • Weight:
    0.08505 kg
  • Tariff Code:
    8538900000
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Processor Fit Write Protection Program Restore Application
  • Stores a verified PLC-5 application independently of processor RAM for controlled program restoration
  • Confirm the target Enhanced PLC-5 processor and required program capacity before installing the EEPROM module
  • Remove chassis power before handling, then set the write-protection jumper after the stored image is verified

1785-ME16 provides a removable PLC-5 program-storage medium rather than adding logic execution or I/O capacity to the controller.

Its usefulness depends on whether the saved application fits the 16K-word module and the target Enhanced PLC-5 processor appears in the official compatibility table.

Safe handling requires chassis power removal, clean card guides, correct seating, and clear control of the jumper used to protect the stored image.

Availability, condition, price, and shipping time for 1785-ME16 are confirmed during quotation.

Allen-Bradley 1785-ME16 16K EEPROM Memory Module Manuals, Datasheets, Links

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

  • The official compatibility table covers supported Enhanced PLC-5 processors.
  • The project must fit within the documented 16K-word capacity.
  • Processor and module catalog numbers should be recorded before service.
  • The EEPROM is nonvolatile and retains its stored application without chassis power.
  • Removing the module jumper provides the documented write-protection function.
  • Jumper state should be set deliberately before storage or restoration.
  • Power must be removed from the processor and I/O chassis before handling.
  • Seat the module through the processor card guides and locking bar.
  • Validate program identity and machine behavior after restoring memory.
  • Nonvolatile backup of PLC-5 applications that fit within the 16K-word capacity.
  • Controlled program transfer among officially supported Enhanced PLC-5 processors.
  • Maintenance spares whose EEPROM image, jumper state, and machine identity are documented.
Description
Allen-Bradley 1785-ME16 stores a 16K-word PLC-5 application in nonvolatile EEPROM memory for supported Enhanced PLC-5 processors.

The module includes a removable write-protection jumper and is installed or removed only with processor and I/O-chassis power turned off according to the official instructions.

Before substitution, verify processor compatibility, application size, the integrity and revision of the saved project, write-protection status, and the maintenance procedure for transferring memory.
Alternative Names
1785-ME16 Allen-Bradley 1785-ME16 Allen Bradley 1785-ME16 PLC-5 1785-ME16 Bulletin 1785-ME16
Technical notes
1785-ME16 handling requires a supported Enhanced PLC-5 processor, a verified 16K-compatible project, chassis power removed, clean card guides, and the intended write-protection jumper state; capacity mismatch prevents restoration.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
How can a buyer confirm that Allen-Bradley 1785-ME16 has enough capacity for an existing processor project?
Compare the verified application size and processor memory requirements with the module's 16K-word capacity before ordering.
Can Allen-Bradley 1785-ME16 restore a PLC-5 after the processor loses its application?
Yes, when the EEPROM contains the correct verified image and the target processor is compatible; confirm machine identity and place the equipment in a safe state before restoration.
How is write protection handled on Allen-Bradley 1785-ME16?
The official module uses a jumper; removing it write-protects the EEPROM, so record the required jumper state before transferring or restoring a program.
Can Allen-Bradley 1785-ME16 be removed while the PLC-5 chassis is energized?
No. Follow the official power-down procedure for the processor and I/O chassis before installing or removing the memory module.
What should be verified before restoring a program from Allen-Bradley 1785-ME16?
Confirm the program identity, revision, processor compatibility, memory size, write-protection state, and that the machine is in a safe condition for restoration.
Why might Allen-Bradley 1785-ME16 fail to restore a saved application?
Possible causes include an oversized or incompatible project, damaged contacts, incorrect seating, write-protection handling, or a memory copy that was not created successfully.
Is Allen-Bradley 1785-ME16 interchangeable with Allen-Bradley 1785-ME32?
Not solely by connector shape. Capacity, processor compatibility, saved program size, and the maintenance procedure must be evaluated before changing memory-module catalog.

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