Description
Overview
The IC200UDD120 from GE Fanuc is a compact fixed I/O programmable controller designed for small machine control systems requiring integrated logic, communication, and high-speed discrete processing in a single unit.
It combines digital input acquisition, transistor output switching, embedded communication ports, and onboard memory architecture optimized for deterministic control in space-constrained installations.
Control Architecture and I/O Structure
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Total I/O capacity: 28 points
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Digital inputs: 16 × 24 VDC
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Digital outputs: 12 × 24 VDC transistor type
The controller is designed as a self-contained unit with no need for external I/O expansion, making it suitable for compact standalone automation systems.
Output channels are electronically protected, eliminating the requirement for external fusing under normal operating conditions.
Power System
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Supply voltage range: 19.2–30 VDC
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Nominal operating voltage: 24 VDC
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Power consumption: ~5 W
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Input current draw: approx. 0.2 A typical
Internal power distribution supports logic circuits, I/O scanning, and communication processing within the same supply domain.
Digital Input Performance
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Input type: 24 VDC sinking/sourcing (configurable wiring)
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Input count: 16 channels
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High-speed counter capability: up to 10 kHz
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Counter resolution: 16-bit registers for precise event tracking
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Noise immunity designed for industrial signal environments
Inputs support both standard discrete sensing and fast pulse capture for encoder-like signals or high-speed switching devices.
Digital Output Performance
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Output type: DC transistor outputs (solid-state switching)
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Output voltage: 24 VDC nominal
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Total output points: 12
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Protection: integrated electronic short-circuit and overload protection
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Load compatibility:
The design removes dependency on external protective fusing and improves response stability for repetitive switching cycles.
Memory and Processing System
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Flash memory: firmware and application storage
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RAM: capacitor-backed runtime data retention
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Real-time clock: lithium battery supported (typical backup duration ~4 months depending on environment)
The architecture ensures program retention and time-based control continuity during extended power interruptions.
Communication Interfaces
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Port 1: RS-232 (SNP / SNPX slave communication)
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Port 2: RS-485 (SNP / SNPX master-slave, Modbus RTU master/slave support)
Network capability:
These interfaces allow integration with supervisory systems, HMIs, and distributed I/O nodes.
Diagnostics and Operation Controls
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Run/Stop hardware switch for local control
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Memory protection switch for fault clearing and program safety
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Status LED indicators for I/O, power, and communication diagnostics
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Hinged protective cover for terminal access and wiring security
Mechanical Specifications
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Weight: 0.93 lb
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Compact VersaMax Micro form factor
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DIN rail or panel-mounted via terminal base system
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Integrated removable terminal block design for simplified maintenance
Environmental Performance
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Operating temperature: 0°C to 60°C
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Designed for enclosed industrial cabinet environments
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Electrical isolation and internal protection suitable for electrically noisy environments
Typical Applications
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Compact OEM machine controllers
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Packaging machinery automation
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Conveyor and material handling systems
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HVAC subsystem logic control
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Small-scale process automation nodes
FAQ
Does this PLC support expansion modules?
No. The IC200UDD120 is a fixed I/O Micro PLC designed as a standalone controller.
Is Modbus communication supported?
Yes. RS-485 port supports Modbus RTU master/slave functionality.
Can it handle high-speed input signals?
Yes. It supports up to 10 kHz high-speed counting on selected input channels.
