imo gsl-d24c plc smart i/o 20.4-28.8vdc
MPN: GSL-D24C
Alt. SKU: GSLD24C

Why Choose the LS Electric GSL-D24C Digital Input Module?
The GSL-D24C is an industrial-grade 24-channel digital input module built for fast, reliable integration with LS Electric’s Rnet-based Smart I/O systems. Whether you're managing complex production lines or expanding I/O capacity on remote machine stations, this compact input module ensures accurate detection of 24 V DC signals from field devices like limit switches, photoelectric sensors, and relay contacts.
Key Features of the GSL-D24C Digital Input Module
- 24 digital inputs, 24 V DC (sink or source type)
- Rnet network connectivity (1 Mbps) for deterministic I/O exchange
- LED indicators for each input channel
- 24 V DC operating voltage with screw-terminal connections
- Compact DIN-rail mountable enclosure for space savings
How to Install the LS Electric GSL-D24C Module
Snap the GSL-D24C onto a standard 35 mm DIN rail inside your control cabinet or near field devices. Wire 24 V DC power to the power terminals, then connect each sensor to its respective input terminal. Plug the Rnet communication cable into the network port, set your station address via the configuration switches, and power on. Confirm correct operation by observing the LED indicators correspond with active sensors.
LS Electric GSL-D24C – 24-Channel Digital Input Module for Rnet Smart I/O
The GSL-D24C delivers 24 opto-isolated digital input channels, ensuring reliable signal acquisition even in electrically noisy industrial environments. Integrated Rnet support provides 1 Mbps deterministic communication, allowing remote I/O stations to be scanned rapidly by the PLC. Built-in diagnostics simplify troubleshooting, while the compact form factor reduces panel footprint and wiring complexity.
Opto-Isolated Inputs: Each channel features optical isolation to protect control logic from voltage spikes and ground loops. Inputs support both PNP (sourcing) and NPN (sinking) sensor types, offering flexible wiring options.
Frequently Asked Questions About the GSL-D24C
- Can I use both PNP and NPN sensors with this module?
- Are the inputs opto-isolated?
- What is the input response time?
- What happens if a sensor shorts the input?
- Is this module hot-swappable?
Key Benefits:
- Accurate, opto-isolated signal detection for 24 field inputs
- 1 Mbps Rnet connectivity for real-time I/O performance
- LED diagnostics to verify each channel and network status
- Space-saving DIN-rail mount design
Built for Harsh Industrial Environments
The GSL-D24C’s rugged housing and opto-isolated design withstand electrical noise, vibration, and temperature extremes, ensuring uninterrupted operation on the factory floor.
Applications:
- Distributed sensor networks on production lines
- Remote machine station I/O expansion
- Control panel decentralization in Rnet architectures
- Fast, deterministic input acquisition for high-speed systems
Frequently Asked Questions
Yes. The module supports both sink- and source-type sensors. Ensure you wire the common reference correctly for your sensor type.
Yes. Each input channel is optically isolated to protect against voltage spikes and ground loops.
The typical response time is under 3 ms, meeting the needs of most industrial sensor applications.
Each input has built-in protection, but we recommend external fusing as an extra safety measure in case of a short circuit.
No. Rnet modules require the network segment to be powered down before removal or replacement.