Combines input and output points in one carrier position.
Key Information
IC200MDD842F is a VersaMax mixed discrete I/O module. Emerson identifies the IC200MDD842 base model as sixteen grouped 24 VDC inputs plus sixteen grouped positive-logic 24 VDC outputs.
Each output is rated at 0.5 A in the ordering description and includes electronic short-circuit protection, abbreviated ESCP.
The complete F revision is retained so this page does not confuse IC200MDD842F with the unprotected IC200MDD844 or other mixed I/O variants.
Functions
Electronic short-circuit protection supports fault containment on the output side.
Grouped field circuits require the common and external-power arrangement to be verified from the wiring record.
Maintains the exact F revision for spare and configuration control.
Specifications
| Manufacturer | Emerson / legacy GE Fanuc |
|---|---|
| Exact model and revision | IC200MDD842F |
| Platform | VersaMax modular I/O |
| Input count | 16 grouped points |
| Input signal | 24 VDC positive logic |
| Output count | 16 grouped points |
| Output signal | 24 VDC positive logic |
| Output rating | 0.5 A per point |
| Output protection | Electronic short-circuit protection (ESCP) |
| Revision control | F suffix retained |
Installation
- Document every point assignment, common group and external field-power source before disconnection.
- Isolate output loads and account for stored or back-fed energy.
- Install the module on the correct VersaMax carrier and verify terminal keying.
- Test inputs and outputs separately before returning the mixed module to automatic operation.
Lifecycle
- Keep the terminal map and safe-state definition with the controller backup.
- Investigate short-circuit events before replacing the module; do not return an unresolved load fault to service.
- Do not substitute IC200MDD844 or another mixed module without a project and wiring review.
- Record the exact suffix, carrier and test results in the spare history.
About IndustryParts
https://www.industryparts.com/Mixed I/O needs both sides of the field circuit
IndustryParts keeps IC200MDD842F linked to its F revision, terminal map, input commons and protected output loads.
- Input map retained
- ESCP load faults reviewed
- Carrier identity checked
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FAQ
Why is the F suffix important when ordering IC200MDD842F?
It identifies the installed revision. Supply the full IC200MDD842F label so revision history is not lost behind the base catalog number.
What should be sent with an IC200MDD842F enquiry?
Provide module and carrier labels, point map, field-voltage source, load types, project version, observed diagnostics and clear terminal photographs.
Can IC200MDD842F replace IC200MDD844 directly?
No automatic interchange should be assumed. IC200MDD842 includes ESCP, while the base IC200MDD844 ordering description does not; wiring and project behavior must be reviewed.
What should be checked after an IC200MDD842F output fault?
Inspect the affected load, field supply, common wiring and short-circuit cause before fitting a replacement. A new module should not be used to mask a field fault.
What is a suitable acceptance test for IC200MDD842F?
Verify identity and diagnostics, stimulate all sixteen inputs, command all sixteen outputs under controlled load and confirm safe-state behavior and interlocks.
