
Block I/O Module 24V DC, 32 Points: 24-Inputs 8-Outputs
The 1785-ME32 is a PLC 5 Memory Device Module. The operating temperature of this module is 0-60 °C (32-140 °F). The storage temperature of this module is -40-85 °C (-40-185 °F). The relative humidity of this module is from 5-95% without condensation. The Backplane Current of this module is 2.5 A at 5V DC. The maximum number analog I/O of this module is 3072. The Maximum I/O Chassis Universal Remote of this module is 32 per I/O Link. The 1785-ME32 has memory size of 32K. The 1785-ME32 can be used as a Backup Program. This module has an operating shock of 30g (3 pulses, 11 ms). The nonoperating shock of this module is 50g (3 pulses, 11 ms). This module comes with a Control Coprocessor Expansion Port. This module has an ESD immunity of 6 kV contact discharges and 8 kV air discharges. This module has a Radiated RF immunity of 10 V/m with 1 kHz sine-wave 80% AM from 30-2000 MHz and 1 V/m with 1 kHz sine wave 80% AM from 2000-2700 MHz.
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Core functions of the product

1.32-point analog input
- Supports 16-bit high-precision analog signal acquisition (voltage/current)
- Configurable input range (such as ±10V, 0-20mA, 4-20mA, etc.), suitable for a variety of sensors
2.PLC-5 system compatibility
- Designed for PLC-5 series controllers, direct communication through parallel backplane
- Supports block transfer, efficient transmission of analog data
3.Industrial-grade reliability and diagnostics
- With LED status indication (power, communication, channel status) for easy troubleshooting
- Wide temperature operating range (0°C ~ 60°C), anti-electromagnetic interference (EMI/RFI filtering)
Product Specifications
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Part Number/Catalog No. | 1785-ME32 |
| Module Type | Memory Device |
| Memory Size | 32 Kilowords |
| Description | EEPROM |
| Function | Program Backup |
| For This Product | Standard PLC-5 Processors |
| Number of Words | 6 Kilowords SRAM |
| Backplane Requirement | 2.5 Amperes at 5 Volts DC |
| Max Analog I/O | 3072 |
| I/O Scan Time Per Rack | 10 ms at 57.6 kbits/s, 7 ms at 115.2 kbits/s, 3 ms at 230.4 mbits/s |
| Max I/O Chassis Total | 93 |
| Max I/O Chassis Extended Local | 0 |
| Max I/O Chassis Universal Remote | 32 Max. Per I/O Link |
| RS-232-C/422-A/423- A Ports | 1 |
| Control Coprocessor Expansion Port | Yes |
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