Description
Product Overview
The IC694MDL655 is a high-density 24 VDC discrete input module from the GE Fanuc PACSystems RX3i series (Emerson Automation). It provides 32 input channels in a compact form factor, supporting both positive (sourcing) and negative (sinking) logic for flexible signal acquisition. Designed for industrial control systems, this module enables reliable monitoring of sensors, switches, and other digital field devices while maintaining signal integrity through group isolation.
Technical Specifications
| Feature |
Specification |
| Model |
IC694MDL655 |
| Series |
PACSystems RX3i |
| Module Type |
24 VDC Discrete Input Module |
| Input Voltage Range |
0–30 VDC |
| Nominal Voltage |
24 VDC |
| Number of Inputs |
32 points |
| Logic Type |
Supports positive and negative logic |
| Input Current |
~7 mA per point at 24 VDC |
| Group Organization |
4 isolated groups of 8 inputs each |
| Isolation |
Group-level isolation referenced to common |
| Diagnostics |
Standard; no advanced fault reporting |
| Dimensions |
17 × 15 × 5 cm |
| Weight |
300 g |
Key Features
-
High Channel Density: 32 discrete inputs per module, optimizing rack space utilization.
-
Dual Logic Support: Compatible with both sourcing and sinking signals for flexible wiring schemes.
-
Isolated Input Groups: Four independently isolated groups improve noise immunity and signal reliability.
-
Compact Design: Lightweight and space-efficient for integration into large automation systems.
Applications
-
Industrial Automation: Collect signals from pushbuttons, limit switches, and digital sensors.
-
Process Control: Monitor discrete status inputs in chemical, petrochemical, or power systems.
-
Smart Manufacturing: Integrate high-density input modules into Industry 4.0 systems.
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Material Handling: Signal acquisition for conveyor lines, robotic systems, and automated warehouses.
Practical Considerations
-
Current Draw: Each input consumes ~7 mA; system power supply must accommodate total load.
-
Compatibility: Designed exclusively for PACSystems RX3i racks; not compatible with Series 90-30 modules.
-
Diagnostics: Lacks advanced fault detection; plan external monitoring for critical applications.
FAQ
Q: Can this module accept both positive and negative logic signals?
A: Yes, it supports sourcing (positive) and sinking (negative) signals for flexible wiring.
Q: How is the input isolation configured?
A: Inputs are divided into four groups of eight, each with independent isolation referenced to a common terminal.
Q: Is it compatible with older Series 90-30 modules?
A: No, the module is only compatible with PACSystems RX3i racks.
Q: What types of devices can it monitor?
A: Pushbuttons, limit switches, proximity sensors, and other 24 VDC digital inputs.
