The 1785-LT4 is a PLC-5/10 processor module from Allen-Bradley, a brand of Rockwell Automation. Here are the detailed contents:
- General Information
- Brand/Manufacturer: Allen-Bradley/Rockwell Automation
- Series: PLC-5
- Module Type: Processor module
- Physical Characteristics
- Dimensions: Not specified in the available information.
- Weight: Not specified in the available information.
- Technical Specifications
- Memory: Maximum user memory is 6K words.
- I/O Capability: Maximum analog I/O is 512. The I/O module offers a maximum scan time of 2 milliseconds for discrete logic programs and 8 milliseconds for typical programs.
- Communication Ports: It has a communication indicator at the top, a key-switch, a programming terminal port, a DH+ port, and a remote I/O port. A 9-pin, D-shell programming terminal is required to connect to the processor parallel with the 3-pin DH+ communication link connector and a 2-pin remote I/O link connector. The remote transmission rate of the module is 57.6 kilobytes per second.
- Power Requirements: The module is designed to operate with PLC-5 platforms that require a 120-volt supply and requires a circuit board that offers 2.5 amps at 5 volts DC.
- Operating Conditions: Operating temperature is from -25°C to 60°C (-13°F to 140°F). Non-operating temperature is from -40°C to 85°C (-40°F to 185°F). Relative humidity is from 5% to 95% without condensation. Operating vibration is 2g at 10 - 500 Hz. Operating shock is 30g (3 pulses, 11 ms). Non-operating shock is 50g (3 pulses, 11 ms). It has an ESD immunity of 4 kV contact discharges and 8 kV air discharges.
- Certifications and Compliance
- It is regarded as industrial equipment class 1, class A in accordance with publication IEC/CISPR 11.
