Features:
- Sixteen input states transferred as two data bytes
- Individual point LEDs plus a field-and-backplane PWR indicator
- Intelligent input processing performed by the Bus Interface Unit
Within a Field Control station,
IC670MDL644 reports the state of all sixteen channels through the Bus Interface Unit rather than requiring separate controller-side processing for each point.
Its front indicators give a local view of point status, while the PWR indicator confirms that the module sees both the user supply and backplane power.
The published input thresholds should be compared with the connected sensor outputs, especially where leakage voltage or slow transitions could affect an off-to-on decision.
The General Electric IC670MDL644 24 VDC Positive/Negative Fast Discrete Input Module may remain available for quotation and legacy-system support through Apter Power.
General Electric IC670MDL644 24 VDC Positive/Negative Fast Discrete Input Module Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
General Electric IC670MDL644 24 VDC Positive/Negative Fast Discrete Input Module Specs
General
- ManufacturerGeneral Electric
- ModelIC670MDL644
- ConditionNew Original ready stock
- Product FamilyField Control Distributed I/O
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Signal Interpretation
- Positive logic: The input circuit supports sourcing field-device arrangements.
- Negative logic: The same module can be applied with sinking field signals.
- On-state level: The official on-state range extends from 15 to 30 VDC in either polarity.
- Off-state level: Signals from 0 to 5 VDC are interpreted as off.
Fast Input Response
- Turn-on: Typical response is 25 microseconds, with a 60-microsecond maximum.
- Turn-off: Typical response is 100 microseconds, with a 150-microsecond maximum.
- Sampling: Fast transitions should be evaluated against the controller scan and application timing.
- Signal quality: Stable field voltage and correct common wiring help prevent unintended changes.
Field Connection Review
- Polarity: Confirm the selected positive- or negative-logic arrangement before landing wires.
- Common: Route the field common according to the terminal-block diagram in the official manual.
- Current: Each energized point draws approximately 8.0 mA at 24 VDC.
- Grounding: Follow the Field Control enclosure, DIN-rail, and grounding instructions for the installed assembly.