Overview
It captures field signals from sensors, switches, and control devices with high reliability.
Moreover, this module integrates seamlessly into GE Series 90-30 and compatible PACSystems architectures.
Engineers select this unit when consistent 24 VDC signal acquisition is required in demanding environments.
Therefore, it supports stable machine control and process monitoring applications.The positive logic design ensures the input turns ON when voltage is present.
In addition, clearly arranged terminal connections simplify field wiring and commissioning.
Specification
| Parameter | Description |
|---|---|
| Manufacturer | General Electric |
| Model Number | IC693MDL640 |
| Product Family | Series 90-30 |
| Compatible Platform | Series 90-30 PLC systems |
| Module Type | Discrete DC Input Module |
| Input Logic Type | Positive Logic (Input ON when +24 VDC applied) |
| Number of Input Points | 16 discrete inputs |
| Nominal Input Voltage | 24 VDC |
| Input Voltage Range | 0–30 VDC operating range (24 VDC nominal systems) |
| Input Current (ON State) | Typical industrial 24 VDC input current per point |
| Input Threshold (ON) | Recognizes logic high near standard 24 VDC industrial level |
| Input Threshold (OFF) | Recognizes logic low near 0 VDC |
| Input Grouping | Inputs arranged in groups with common reference |
| Common Type | Shared common per input group |
| Isolation | Optical isolation between field inputs and backplane logic |
| Backplane Current Draw | Supplied by PLC backplane (model dependent) |
| Response Time (ON/OFF) | Millisecond-level response suitable for general automation |
| Status Indicators | 16 individual LEDs indicating input state |
| Diagnostic Capability | Visual LED diagnostics for wiring and signal verification |
| Wiring Method | Terminal block connection via compatible baseplate terminals |
| Mounting Method | Installs into Series 90-30 baseplate slot |
| Field Power Requirement | External 24 VDC field supply required |
| Environmental Rating | Designed for industrial control cabinet installation |
| Operating Temperature | Suitable for standard industrial temperature ranges |
| Storage Temperature | Industrial storage temperature range |
| Humidity Tolerance | Non-condensing industrial humidity conditions |
| Vibration Resistance | Suitable for panel-mounted industrial environments |
| Typical Signal Sources | Proximity sensors, limit switches, pushbuttons, relay contacts |
| Application Areas | Manufacturing lines, water treatment, utilities, material handling |
| Compliance | Designed to meet industrial PLC system standards |
| Serviceability | Module replacement without field rewiring when properly labeled |
| Expected Service Life | Long-term solid-state performance in continuous duty applications |
FAQ
It accepts 24 VDC discrete input signals using positive logic operation.Q2: How many input channels are available?
The module provides 16 discrete input points.
Q3: What does positive logic mean in this module?
An input turns ON when 24 VDC voltage is present at the terminal.
Q4: Is the module compatible with PACSystems controllers?
It is compatible with Series 90-30 systems and certain PACSystems configurations.
Q5: Are status indicators available on the module?
Yes, each input channel includes an LED status indicator for diagnostics.













