Allen-Bradley 1785-ME32 Memory Module

The 1785-ME32 is a memory module designed for the Allen-Bradley PLC 5 series. It provides 32K words of memory and functions as a program backup device. This EEPROM (Electrically Erasable Programmable Read-Only Memory) module stores small amounts of data, such as calibration tables and device configurations, ensuring that data is retained even when power is removed. It supports the standard PLC-5 processors and includes a control coprocessor expansion port.

Technical Specifications

• Manufacturer: Rockwell Automation
• Brand: Allen-Bradley
• Part Number: 1785-ME32
• Module Type: Memory Device
• Memory Size: 32 Kilowords
• Function: Program Backup
• Supported Processors: Standard PLC-5 Processors
• Current Draw: 0.17 Amps at 5 Volts DC
• Backplane Current: 2.5 Amps at 5V DC
• Max Analog I/O: 3072
• Max I/O Chassis Universal Remote: 32 per I/O Link
• I/O Scan Time:
  • 10 ms at 57.6 kbits/s
  • 7 ms at 115.2 kbits/s
  • 3 ms at 230.4 kbits/s
• Operating Temperature: 0 to 60°C (32 to 140°F)
• Storage Temperature: -40 to 85°C (-40 to 185°F)
• Humidity: 5 to 95% (non-condensing)
• Operating Shock: 30g (3 pulses, 11 ms)
• Non-operating Shock: 50g (3 pulses, 11 ms)
• ESD Immunity: 6 kV contact, 8 kV air discharges
• Radiated RF Immunity: 10 V/m from 30-2000 MHz, 1 V/m from 2000-2700 MHz
• Control Coprocessor Expansion Port: Yes
• RS-232-C/422-A/423-A Ports: 1
• Weight: 0.18 lbs