GE Fanuc Versamax Model IC200UDR164-DKC PLC IC200UDR164DKC IC2OOUDR164-DKC

IC200UDR164-DKC | GE Fanuc VersaMax Micro PLC — 40×24VDC In / 24 Relay Out / 120–240VAC / 8 HSC Inputs / RS-232C / 4 Expansion Units / Revision DKC

A Complete Micro PLC — Not Just an I/O Module

The IC200UDR164-DKC is a complete VersaMax Micro PLC — processor, power supply, digital inputs, and relay outputs all in one housing. This is not a standalone I/O card; it is an autonomous programmable controller with onboard CPU, programme execution, and field I/O.

The "UDR164" designation carries functional meaning: the unit provides 40 DC digital inputs and 24 relay outputs in the 64-point format (U = VersaMax, D = DC input, R = relay output, 164 = 64-point with 120/240VAC power supply). The DKC suffix identifies the hardware revision of this specific build.

At 120–240VAC power input, this unit connects directly to AC mains without a separate DC power supply — the internal AC/DC converter powers both the PLC logic and the input circuits. For cabinet designs where AC supply is the primary power source, this eliminates a component.

Key Specifications

24 Form C Relay Outputs — Mixed-Voltage Field Control

Each of the 24 relay outputs is a Form C (SPDT) contact — a changeover relay with normally open, normally closed, and common terminals. This contact form gives the greatest wiring flexibility:

Normally Open (NO): Standard load control — motor starter coil, solenoid valve, alarm.

Normally Closed (NC): Fail-safe applications — circuits that must be energised when the output is OFF and de-energise when switched ON.

Common (COM): Accepts any field supply voltage within the relay's contact rating. 120VAC loads, 230VAC loads, and 24VDC loads connect to the same relay bank without voltage-matching hardware — the relay contact is electrically independent of the PLC supply.

Application Scenarios

AC-powered compact machine panels: The unit connects directly to the panel's AC bus. No 24VDC power supply module required for the PLC itself — simplifying panel design for machines with AC-only power infrastructure.

Multi-zone relay control: 24 Form C relays independently controlling motor starters, valve solenoids, and alarm contacts at mixed AC and DC field voltages — all from one controller housing.

High-speed production counting: Encoder or sensor pulses from up to 8 counters tracked simultaneously in HSC mode. Programme reads accumulated counts each scan for batch control, length measurement, or speed monitoring.

FAQ

Q1: What is the "-DKC" revision suffix and does it affect compatibility?

The DKC suffix identifies the specific hardware revision of the IC200UDR164. Revisions reflect component or manufacturing updates while maintaining the same functional specification and programme compatibility. A DKC unit replaces earlier IC200UDR164 revisions (such as AD, CB, etc.) without programme changes in most installations. Confirm with the installed programme's firmware version requirements if there are concerns about revision compatibility.

Q2: What programming software connects to the IC200UDR164-DKC?

The VersaMax Micro series is programmed using Proficy Machine Edition (PME) or the earlier Logicmaster software. Connection is via the built-in RS-232C serial port using an IC200CBL001 or equivalent programming cable. Proficy Machine Edition supports both Ladder Diagram and Instruction List programming languages for the VersaMax Micro platform.

Q3: Can the 24 relay outputs be used as both NO and NC contacts simultaneously from the same relay?

Yes. Each Form C relay provides all three terminals — NO, NC, and COM — on the terminal strip. The programme commands the relay coil; the wiring to NO, NC, or both determines how the field circuit responds. One relay can simultaneously close an NO circuit (energising a lamp) and open an NC circuit (de-energising a bypass) with a single output command.

Q4: What is the difference between IC200UDR164 and IC200UDR064?

Both are 64-point VersaMax Micro PLCs with 40 DC inputs and 24 relay outputs. The difference is power supply: IC200UDR064 uses 24VDC input power; IC200UDR164 uses 120/240VAC. All other functional specifications — I/O count, HSC capability, relay type, expansion connectivity — are identical. Choose based on the available supply voltage in the panel.

Q5: Are the relay outputs protected against inductive load switching?

The relay contacts themselves do not include built-in suppression. For inductive loads (motor starter coils, solenoid valves), external suppression across the load is recommended — a snubber network for AC loads or a freewheeling diode for DC loads. Without suppression, the back-EMF spike at relay opening degrades contact life over time. Verify the inductive load suppression requirements from the IC200UDR164 user manual for the specific load types being switched.