2MLL-C42B | Honeywell | MasterLogic-200 Analog Input and Output Module

The Honeywell 2MLL-C42B is a combination analog I/O module designed for MasterLogic-200 PLC systems. It integrates field analog signal acquisition and generation into a single rack assembly, delivering 16-bit resolution on both inputs and outputs while communicating with host automation components via RS-422 at 9600 bps.

Signal Configuration and Conversion Performance

The module processes both voltage and current analog signals across standard industrial ranges. Input channels accept 0 to 10 V, 0 to 5 V, and 4 to 20 mA signals, while output channels generate 0 to 10 V and 4 to 20 mA signals. With a high sampling rate of up to 1000 samples per second per channel, it provides rapid dynamic tracking for real-time process loops.

Electrical Isolation and System Integration

To protect sensitive control logic from ground loops and high-voltage line surges, the unit features 1500 V electrical isolation between individual channels and communication lines. Powered by a 24 VDC supply from the MasterLogic-200 base rack, the module supports both DIN rail and direct panel mounting.

Technical Specifications

Frequently Asked Questions

Q: What input and output signal ranges does the 2MLL-C42B module support?

A: Inputs accept 0-10 V, 0-5 V, and 4-20 mA signals, while outputs provide 0-10 V and 4-20 mA signals.

Q: What isolation level does the module provide for noise and field protection?

A: It provides 1500 V electrical isolation between signal channels and communication lines.

Q: What communication protocol and baud rate are used by the module?

A: It communicates using the RS-422 protocol at a fixed baud rate of 9600 bps.