Overview
The GE Fanuc / Emerson IC694MDL240A, also cataloged as the IC694MDL240A 120 VAC Discrete Input Module, operates as a dedicated hardware component for processing discrete field inputs within PACSystems RX3i platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC694MDL240A |
| Brand | GE Fanuc / Emerson |
| Origin | Standard Industrial Manufacturing |
| Weight | Approx. 0.3 kg |
| Dimensions | Standard RX3i Single-Slot Form Factor |
| Operating Temp | 0 deg C to 60 deg C |
| Power Consumption | 90 mA maximum (5V bus) |
| Rated Voltage | 120 Volts AC |
| Input Current | 12 mA typical |
| On Response Time | 30 ms maximum |
| Off Response Time | 45 ms maximum |
Backplane Bus Communication and I/O Scaling
Configured specifically for the PACSystems RX3i backplane, the module maintains robust deterministic data transfer rates through its high-speed serial bus interface. Furthermore, the single-group architecture supports up to 16 discrete input points sharing a common terminal. Consequently, engineers can scale industrial automation monitoring networks efficiently while minimizing wiring complexity. Moreover, optical isolation rated at 250 VAC continuous protects internal logic circuitry from transient field surges.
Frequently Asked Questions
Q: What is the maximum backplane current draw for the IC694MDL240A module?
A: The module draws a maximum of 90 mA from the 5V backplane bus when all 16 input points are in the ON state.
Q: Does this discrete input module support hot-swapping within the RX3i chassis?
A: Yes, PACSystems RX3i modules generally support hot insertion and removal, provided the system power supply and backplane bus permit it under safe maintenance procedures.
Q: What are the designated on-state and off-state voltage thresholds?
A: The on-state voltage ranges from 74 to 132 Volts AC, whereas the off-state voltage spans from 0 to 20 Volts AC.
Field Installation Guidelines
When installing the IC694MDL240A module into a PACSystems RX3i rack, technicians must first ensure that rack power is completely disabled to prevent electrical shock or backplane damage. Securely mount the module into the designated slot, making sure the rear connectors engage firmly with the backplane bus. Additionally, route field wiring away from high-voltage power cables to minimize electromagnetic interference, and verify that all terminal screws are torqued properly to maintain low-resistance electrical contact.
