2MLI-D21A HONEYWELL Digital I/O Module
| Product Description |
|
The 2MLI-D21A is a digital input module in Honeywell’s MasterLogic-200 PLC / modular I/O family. It is used for reading digital
signals (on/off) from field devices, up to 8 points, at 24V DC. It supports both source and sink input types. It is
intended for use in moderate to harsh industrial environments as part of the MasterLogic system.
|
| More Technical Data |
| Function |
Digital input module, 8 points, DC 24V, source/sink type |
| Input points |
8 channels (points) |
| Rated input voltage |
24 V DC |
| Operating voltage range |
DC 20.4 – 28.8 V (ripple < 5%) |
| Input current (typical) |
About 4 mA per point |
| Frequently Asked Questions |
|
1. What is the Honeywell 2MLI-D21A Digital I/O Module?
The Honeywell 2MLI-D21A is a digital input/output module designed for industrial automation systems. It provides reliable
interfacing between field devices and the control system, supporting both input
signal monitoring and output actuation.
2. What type of signals does the 2MLI-D21A support?
It supports discrete (on/off) digital signals, typically 24 VDC, depending on the system configuration. The module
is designed for compatibility with Honeywell’s distributed control system (DCS) or
programmable logic controller (PLC) platforms.
3. Is the 2MLI-D21A hot-swappable?
Yes. The module is designed for online replacement, meaning it can be replaced without shutting down the entire system,
reducing downtime in critical applications.
4. What communication system does it use?
The 2MLI-D21A is designed to integrate with Honeywell’s I/O subsystems, connecting to controllers via system backplanes.
It ensures reliable communication with the central processing unit (CPU).
|
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