- All sixteen input points share the module group reference.
- The channel states are filtered and converted to serial data for the BIU.
- Two bytes represent the complete input image of the module.
GE Fanuc · FIELD CONTROL DISCRETE INPUT
GE Fanuc IC670MDL240 120 VAC Grouped Input Module
A sixteen-point 120 VAC grouped input module for high-density AC status acquisition.
16 GROUPED120 VACINPUT POINTS
Product Overview
GE Fanuc IC670MDL240 is a sixteen-point 120 VAC discrete input module arranged as one common group. It is used where a Field Control station must acquire a higher density of AC contact or sensor states from circuits that share the same field-power reference.
Input filtering and optical isolation separate the field group from the module logic. The sixteen states are transferred as two bytes of discrete input data, and individual LEDs show the buffered state seen by the bus interface unit.
The grouped construction differs from the isolated IC670MDL233. IC670MDL240 provides twice the point count, but it does not provide isolation between individual points within the group.
Technical Specifications
| Product type | Grouped discrete input module |
|---|---|
| Input points | 16 in one group |
| Rated voltage | 120 VAC |
| Input range | 0–132 VAC, 47–63 Hz |
| Input current | 15 mA per point at 120 VAC |
| On-state voltage | 70–120 VAC |
| Off-state voltage | 0–20 VAC |
| On response | 12 ms typical; 20 ms maximum |
| Off response | 25 ms typical; 40 ms maximum |
| Group-to-logic isolation | 250 VAC continuous |
| BIU current draw | 77 mA maximum |
Grouped Channel Arrangement
Density Versus Isolation
- IC670MDL240 is suited to common-supply AC circuits requiring sixteen points.
- Use IC670MDL233 when separate point isolation is required.
- Confirm shared-reference wiring before changing from an isolated-input design.
Buyer Questions
Can IC670MDL240 replace two IC670MDL233 modules?
Only if the field circuits may share one group reference; IC670MDL240 does not preserve point-to-point isolation.
What does a lit input LED on IC670MDL240 represent?
It represents the filtered state held in the module data buffer for that channel.
Why should leakage from AC sensors be checked with IC670MDL240?
The OFF state is specified only up to 20 VAC and 2.5 mA; excess leakage can prevent a reliable OFF indication.
How many controller input bytes does IC670MDL240 use?
Its sixteen discrete states occupy two input bytes.
What terminal information is needed for an IC670MDL240 spare?
Confirm whether the station uses a box, barrier or connector-style Field Control base.
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