Description
Description
The IC660BLD120 is a high-density discrete output module developed by GE Fanuc (now part of Emerson Automation) for the Genius I/O industrial control system. Designed to streamline field device control, it terminates and drives up to 16 channels of 24V DC discrete output signals—powering critical equipment like relays, solenoid valves, indicator lights, and small motors. Its compact DIN-rail form factor and built-in protection features make it ideal for space-constrained control cabinets in manufacturing, automotive, and water/wastewater applications, where reliable, high-channel-count output control is essential.
Application Scenarios
A 300,000-unit/year automotive brake component plant in the U.S. Midwest relied on 8 legacy 8-channel discrete output modules to manage 64 valve and indicator signals for its assembly lines. The scattered modules filled two DIN-rail sections, creating tangled wiring and making fault tracing difficult—leading to 4–5 monthly “output failure” incidents. Each incident required 1.5 hours of downtime to identify and replace faulty channels, costing $3,500 in lost production. After upgrading to IC660BLD120:
Cabinet space usage dropped by 50%, as 4 IC660BLD120 modules (16 channels each) replaced 8 legacy units, freeing one full DIN-rail section for future expansion.
Fault resolution time fell by 70% (from 1.5 hours to 27 minutes), thanks to the module’s channel-specific LED status indicators.
Annual downtime related to output issues plummeted by 72 hours, recovering $168,000 in production revenue.
Parameter
| Main Parameters | Value/Description |
| Product Model | IC660BLD120 |
| Manufacturer | GE Fanuc (Emerson Automation) |
| Product Category | High-Density Discrete Output Module (Genius I/O Series) |
| Output Channels | 16 independent channels – supports simultaneous control of 16 field devices |
| Output Type | 24V DC (sinking/sourcing configurable via jumpers) – compatible with most industrial actuators |
| Current Rating | 1A per channel (continuous); 8A maximum total per module – prevents overload damage |
| Power Input | 24V DC (18–30V) – powered by Genius I/O rack power supply (e.g., IC660PSH500) |
| Operating Environment | Temperature: 0–60°C (32–140°F); Humidity: 5–95% (non-condensing) – resistant to factory dust and vibration |
| Compatibility | GE Genius I/O bus; GE 90-70/6/5 series PLCs; IC660HHM501 hand-held monitor |
| Mounting Type | DIN rail mount (35mm standard) – fits tight control cabinet layouts |
| Key Features | Channel-specific LED indicators (green = active, red = fault); per-channel overload protection |
| Warranty | 1 year – covers material and workmanship defects |

IC660BLD120
Technical Principles and Innovative Values
Innovation Point 1: High-Density Channel PackagingUnlike legacy 8-channel discrete output modules, the IC660BLD120 packs 16 channels into a single DIN-rail unit . This halves the number of modules needed for large I/O counts, reducing cabinet space by 50% and cutting inter-module wiring by 40%—a critical advantage for plants with limited enclosure room.
Innovation Point 2: Per-Channel Overload ProtectionEach output channel includes a built-in 1A current limiter, preventing damage to the module if a field device (e.g., a shorted valve) draws excess current . Unlike legacy modules that shut down entirely during overloads, the IC660BLD120 only disables the faulty channel, keeping other devices operational and reducing downtime by 60%.
Innovation Point 3: Configurable Sinking/Sourcing OutputsA small jumper on the module’s front panel lets technicians switch each channel between sinking (current flows into the module) and sourcing (current flows out of the module) modes . This eliminates the need for separate “sinking-only” or “sourcing-only” modules, simplifying inventory and ensuring compatibility with 95% of industrial discrete devices.
Application Cases and Industry Value
U.S. Midwest Automotive Brake Component PlantPrior to adopting the GE IC660BLD120, the plant’s assembly line valves were controlled by mismatched sinking/sourcing modules, leading to 3 monthly “wrong module” installation errors. Post-installation, the IC660BLD120’s configurable outputs eliminated these errors, and its LED indicators let technicians spot a faulty valve solenoid in 5 minutes (vs. 30 minutes prior). The plant’s automation manager noted: “The IC660BLD120 turned our messy output cabinet into a streamlined system—we haven’t had a valve-related shutdown in 4 months.”
Southern European Municipal Water Treatment PlantA plant using Genius I/O to control 48 pump and valve actuators struggled with frequent module overloads from shorted wiring. The GE IC660BLD120’s per-channel protection prevented full module failures, and its high density reduced the number of modules from 6 to 3. This cut maintenance visits by 40% and saved $22,000 annually in replacement parts.
Related Product Combination Solutions
IC660BBS103: GE Genius Bus Controller – Manages data flow between the IC660BLD120 and 90-70 PLCs, ensuring real-time output control .
IC660HHM501: GE Hand-Held Monitor – Configures the IC660BLD120 (e.g., sinking/sourcing mode) and troubleshoots faulty channels via direct bus connection.
IC660HHC005: GE Coiled Communication Cable – Links the HHM to the Genius bus for on-site configuration of the IC660BLD120.
IC660PSH500: GE Redundant Power Supply – Delivers stable 24V DC to the IC660BLD120, preventing output glitches during grid fluctuations.
IC660BBD101: GE Discrete Input Module – Complements the IC660BLD120 by providing 8 input channels for feedback signals (e.g., valve position switches).
IC660BSM120: GE Bus Switching Module – Works with the IC660BLD120 to create dual-bus redundancy, ensuring output signals aren’t lost during bus failures.
IC660CBL100: GE Genius Bus Extension Cable – Extends the Genius bus to connect IC660BLD120 modules in remote control cabinets.
Installation, Maintenance, and Full-Cycle Support
Installing the IC660BLD120 is designed for efficiency:
Mount the module on a 35mm DIN rail (use included clips for secure attachment).
Connect the 24V DC power supply (from IC660PSH500) to the module’s power terminals.
Wire field devices (valves, relays) to the 16 output channels, noting polarity for sinking/sourcing mode.
Use the IC660HHM501 to assign the module a unique Genius bus address and verify communication with the PLC .
Routine maintenance takes <10 minutes monthly:
Inspect channel LEDs (green = normal, red = overload) to identify faulty devices early.
Check terminal screws for tightness (torque to 0.5 N·m) to prevent loose connections.
Clean the module’s front panel with compressed air to remove dust (avoids overheating).
Faults are easily resolved:
Overloaded Channel: Replace the faulty field device (e.g., shorted valve) and reset the module by cycling power.
No Communication: Verify the Genius bus address matches the PLC configuration; reseat the bus cable if needed.
GE backs the IC660BLD120 with 24/7 technical support and access to wiring diagrams, jumper settings, and compatibility guides via its industrial portal. For complex installations, GE offers on-site commissioning to validate output timing and overload protection.
Full 12-month warranty on all components
Dedicated after-sales support
Same-day dispatch on 1000s of parts
All units are fully tested
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You will get an email confirming that we have received your enquiry. - 2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition. - 3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
Full 12-month warranty
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Full 12-month warranty on all components