MLI-DR64H HONEYWELL MasterLogic PLC Relay Digital Output Module
| Product Description |
|
MLI‑DR64H is a base‑class module in the MasterLogic 50 PLC family from Honeywell. It is designed to provide a set of digital inputs + relay digital outputs
under AC power supply, for industrial control and automation applications.Specifically, MLI‑DR64H offers 32 digital input channels (DC 24 V)
and 32 relay output channels (relay contacts).This module enables the PLC system to interface with many field devices: sensors,
switches (via inputs), and actuators, motors, solenoids, lamps, other loads (via relay outputs) — offering
robust galvanic isolation for output loads.
|
| More Technical Data |
| Module type |
Digital I/O base module — 32-ch digital input + 32‑point relay digital output. |
| Input type / number |
32 channels / DC 24 V digital input (for field sensors, switches) |
| Output type / number |
32 relay outputs (relay contact type) |
| Frequently Asked Questions |
Q: What kind of outputs does MLI‑DR64H provide? Are they transistor outputs or relay contacts?
A: The outputs are relay contacts (mechanical relays) — not transistor/open‑collector outputs. This means each output provides galvanic isolation and can directly switch AC or DC loads (within relay ratings).
Q: What kind of loads can I drive with MLI‑DR64H relay outputs?
A: Because outputs are relay contacts, they can drive both DC and AC loads (depending on wiring and load ratings): e.g. motors, solenoids, lamps,
heaters, AC loads, or any load requiring isolation from PLC power supply. For resistive loads, analogous modules are rated ~2 A per
point (for 24 V DC / 220 V AC) in ML50 catalog — though you should check the exact datasheet for 32‑point relay outputs.
Q: What’s the advantage of relay outputs over transistor outputs in a PLC module like MLI‑DR64H?
A: Relay outputs offer galvanic isolation, ability to switch higher voltages (AC or DC), and are less sensitive to load types (resistive,
inductive, etc.). This makes them more versatile when controlling diverse field devices, especially AC loads
or heavier loads. Transistor outputs are better for fast switching and low‑power DC loads, but relapse
outputs are more flexible for general industrial use.
|
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