The GE IC697MDL740, also cataloged as the IC697MDL740 Discrete Output Module, operates as a dedicated hardware component for solid-state DC load switching within Series 90-70 PLC platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC697MDL740 |
| Brand | GE Fanuc / Emerson Automation |
| Origin | USA |
| Weight | 1.11 kg (2.44 lbs) |
| Dimensions | Standard single-slot Series 90-70 module format |
| Operating Temp | 0 to 60 deg C |
| Storage Temp | -40 to 85 deg C |
| Power Consumption | 0.75 W maximum (0.15 A from internal 5 VDC backplane bus) |
| Number of Outputs | 16 solid-state points |
| Output Group Isolation | 1500 V optical isolation |
| Rated Output Voltage | 24 to 48 VDC |
| Output Voltage Range | 20 to 60 VDC |
| Output Current Rating | 2 A per point, 4 A per output group |
| Peak Inrush Current | 20 A maximum for 20 milliseconds |
| Maximum On/Off Response Time | 2 milliseconds |
| On-State Voltage Drop | 0.8 V maximum (0.4 Ohms resistance) |
Backplane Bus Communication Velocity & I/O Density Scaling
The module executes deterministic state transitions across the Series 90-70 backplane architecture, maintaining maximum backplane bus communication velocity during high-frequency output switching cycles. Channel logic mapping across all 16 solid-state output circuits preserves high signal integrity and predictable I/O density scaling during dynamic scan execution.
Frequently Asked Questions
Q: What current draw does the IC697MDL740 draw from the internal 5 VDC backplane bus?
A: The module draws 0.15 A (150 mA) from the +5 VDC backplane power rail.
Q: What are the maximum continuous output current ratings per point and per group?
A: Each individual output point supports up to 2 A continuous load current, with a total group limit of 4 A.
Q: What is the maximum response time for state changes on the output channels?
A: The solid-state output circuits feature a maximum turn-on and turn-off response time of 2 milliseconds.
Field Installation Guidelines
- Module Insertion: Align the module circuit board with the top and bottom card guides of the Series 90-70 baseplate slot and press firmly until the backplane connectors seat completely, securing top and bottom retaining latches.
- Field Wiring: Connect the 20 to 60 VDC field power supply and discrete loads to the terminal block. Ensure external fusing is installed per group to protect output drivers from sustained overcurrent.
- Inductive Load Suppression: Install external flyback diodes across inductive DC loads (such as relay coils or solenoids) to clamp voltage transients and prevent output driver degradation.
- Shield Grounding: Ensure field power supply commons and cable shielding are bonded to a central low-impedance ground bar to prevent noise propagation across the backplane.
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