16-Point Isolated AC Input Module | IC697MDL241 | GE

Product Description

The IC697MDL241 is a 16-point discrete input module engineered for the GE Fanuc Series 90-70 PLC system. This industrial-grade module provides the necessary interface between high-voltage field devices and the PLC logic processor. It is specifically designed to sense 240 VAC signals from mechanical switches, pushbuttons, and industrial proximity sensors, converting these field inputs into logic-level data for real-time process monitoring.

To ensure high reliability in electrically noisy environments, the IC697MDL241 features full channel-to-channel isolation. This hardware architecture prevents transients or faults on one input line from affecting adjacent channels or the backplane electronics. Each of the 16 inputs includes a 20 ms hardware filter to effectively suppress contact bounce and electromagnetic interference (EMI). The module is also optimized for compatibility with 2-wire proximity switches, featuring a low leakage current threshold to prevent false "ON" states, making it a versatile choice for complex automation sequences.

Technical Specifications

• Model Number: IC697MDL241

• Manufacturer: GE Fanuc (Emerson Automation)

• Series Compatibility: Series 90-70 PLC

• Input Type: Discrete AC (Isolated)

• Number of Points: 16 Isolated Channels

• Nominal Input Voltage: 240 VAC (Supports 120/240 VAC range depending on configuration)

• Input Voltage Range: 0 to 264 VAC

• Isolation: Channel-to-channel and channel-to-backplane

• Input Filter Time: 20 ms (Typical)

• Input Current: 10 mA (Typical at nominal voltage)

• On-state Voltage: 155 to 264 VAC

• Off-state Voltage: 0 to 40 VAC

• Proximity Switch Support: Optimized for low-leakage sensors

• Operating Temperature: -20 °C to +60 °C

• Storage Temperature: -40 °C to +85 °C

• Physical Weight: 1.25 lbs (0.57 kg)

• Compliance: IEC 61326-1, industrial EMC standards

Application & Integration Strategy

The IC697MDL241 is commonly utilized in large-scale power generation and manufacturing facilities where 240V AC control circuits are standard. It occupies a single slot in any Series 90-70 PLC rack and interfaces directly with the CPU via the VME-based backplane. Given that this module is discontinued by the manufacturer, it remains a critical spare for maintaining legacy turbine auxiliaries and heavy machinery control systems.

Frequently Asked Questions

Can the IC697MDL241 be used with 120 VAC signals?Yes, while nominal for 240 VAC, the IC697MDL241 can detect 120 VAC signals; however, engineers should verify that the specific field device's "ON" voltage meets the module's 155 VAC threshold for 240V settings, or check for specific wiring configurations that accommodate the 120V range.

Does this module require a separate terminal block?The IC697MDL241 typically uses a removable terminal board (such as the IC697TBY series) which allows for field wiring to be disconnected without removing the individual wires from the terminals, simplifying module replacement.