High-Density Discrete Input for PACSystems RX3i
The GE IC694MDL646 provides sixteen discrete input channels for the PACSystems RX3i platform. This module accepts 24 VDC signals from field devices like pushbuttons, limit switches, and proximity sensors . It supports both positive and negative logic configurations, offering flexible wiring options for diverse applications . Moreover, this module features a fast 1 ms response time for both on and off transitions . Sixteen green LEDs on the front panel indicate the on/off status of each input point for quick diagnostics .
Electrical and Isolation Specifications
The IC694MDL646 operates with a rated voltage of 24 VDC and accepts an input range of 0 to +30 VDC . Each channel draws a typical input current of 7 mA at rated voltage . The module provides optical isolation of 250 VAC continuous (1500 VAC for one minute) between the field side and the backplane . On-state voltage requires between 11.5 and 30 VDC, while off-state voltage stays between 0 and +5 VDC . The minimum on-state current is 3.2 mA, and the maximum off-state current is 1.1 mA .
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | IC694MDL646 |
| Manufacturer | GE Fanuc / Emerson |
| Product Type | Discrete Input Module |
| Input Points | 16 (one group with single common) |
| Rated Voltage | 24 VDC |
| Input Voltage Range | 0 to +30 VDC |
| Input Current | 7 mA typical at rated voltage |
| On-State Voltage | 11.5 to 30 VDC |
| Off-State Voltage | 0 to +5 VDC |
| On-State Current | 3.2 mA minimum |
| Off-State Current | 1.1 mA maximum |
| Response Time (On/Off) | 1 ms typical |
| Isolation (Field to Backplane) | 250 VAC continuous; 1500 VAC for 1 minute |
| Backplane Current (5V) | 80 mA (all inputs on) |
| Backplane Current (24V) | 125 mA |
| Power Output Terminals | +24V OUT and 0V OUT for field devices |
| Status Indicators | 16 green LEDs |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5% to 95%, non-condensing |
| Weight | 0.28 kg (0.63 lbs) |
| Mounting | Any I/O slot in RX3i system |
| Certifications | UL 508, CSA C22.2 No 142M1987; Class I, Div. 2, Groups A-D |
| Country of Origin | USA |
Installation and System Integration
You can install the IC694MDL646 in any I/O slot within a PACSystems RX3i rack . The module supports hot swapping, allowing replacement without system shutdown . Field devices can draw power from the module’s +24V OUT and 0V OUT terminals or from an external supply . The two blue bands on the label identify this as a low-voltage module . This input module serves applications across manufacturing, power generation, water treatment, and material handling systems where reliable discrete signal acquisition is essential .
Details
| Weight | 0.32 kg |
|---|---|
| Dimensions | 25 × 140 × 110 mm |
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