GE-FanucIC610MDL116BSeries One Analog Input Module, 4 Channel, 4–20 mA

Product Description

What this part is

A GE Fanuc Series One analog input module, IC610MDL116, with four 4–20 mA current input channels. It sits in a Series One rack and converts four analog process signals — pressure transmitters, flow meters, temperature transmitters, load cells, valve position feedback — into register values the Series One ladder program can compare, scale and act on.

It is an analog input module only. There are no outputs and no discrete points on this card: it cannot drive a valve, a contactor or a lamp, and it will not accept a voltage-output transmitter without a converter.

Decoding the order code

IC – GE Fanuc Automation industrial controls prefix.610 – the Series One PLC family. The GE Fanuc groups do not interchange: IC610 is Series One, IC600 is Series Six, IC630 is Series Three, IC693 is Series 90-30, IC697 is Series 90-70. A Series 90-30 equivalent such as IC693ALG221 does the same job on a different platform and is not a substitute.MDL – the Series One module class for I/O modules. Series One communications modules carry CCM and CPUs carry CPU, so the class letters tell you the tier of the card before you look anything up.116 – the specific module, here the 4-channel 4–20 mA analog input. Neighbouring MDL numbers are quite different cards: MDL110 is a high-speed counter, MDL152 is an output module, MDL101 is a discrete input.B – the hardware revision letter. A revision suffix, not a different product.

Published specifications

Function: analog input module, input onlyChannels: 4 (four circuits)Signal type: 4–20 mA current loopPlatform: GE Fanuc Series One programmable controllerReference manual: GEK-90477, Series One IC610Occupies one slot in a Series One rack

What these specs mean in practice

4–20 mA is a current loop, and that is the whole point of it. Current signals do not lose accuracy over cable length the way a low-level voltage signal does, and because the live zero sits at 4 mA rather than 0 mA, a broken wire reads as 0 mA and is distinguishable from a genuine bottom-of-range measurement. That live-zero diagnostic is worth building into your ladder: alarm on anything below about 3.5 mA rather than treating it as a valid reading.

Check the loop power arrangement before you wire it. Two-wire transmitters need loop power supplied; four-wire transmitters supply their own. The module reads current either way, but getting the supply and the loop polarity wrong is the usual reason a channel reads dead. Confirm the wiring against GEK-90477 rather than assuming.

This card takes current input only. A 0–10 V or ±10 V transmitter needs a different module or a voltage-to-current converter.

What is not included

Module only. This listing does not include the Series One rack or base, the rack power supply, the Series One CPU, the field terminal block or connector kit, the 24 V loop power supply, loop-powered transmitters or sensors, field wiring or shielded cable, dropping or burden resistors, a programmer or Logicmaster software, or any documentation, calibration record or ladder program. On a used analog card the terminal block is frequently what a buyer actually still needs, and it is not supplied here.

Quantity and configuration

Sold as 1 piece — one 4-channel analog input module. New old stock, tested, in an opened box.

Installation and setup notes

Power down the rack and the loop supply before inserting or removing the module. Handle it by the edges with a wrist strap. Use shielded twisted pair for the loops, ground the shield at one end only, and route it clear of motor and drive cabling — a 4–20 mA loop is far more robust than a voltage signal but it is not immune to a VFD output cable running alongside it. Prove each channel with a loop calibrator at 4, 12 and 20 mA before trusting the scaling in the ladder, and note the slot position, because the Series One derives register addresses from it.

Interchange guidance

Searchable equivalents of the same part: IC610MDL116B, IC610MDL116, IC610-MDL-116-B, IC610 MDL 116 B, IC610MDL116-B. Other revision letters of IC610MDL116 are the same module at a different revision. Not interchangeable: IC610MDL110 (high-speed counter), IC610MDL152 (output module) and IC610MDL101 (discrete input) are entirely different Series One cards, and IC693ALG221 is the Series 90-30 4-point 4–20 mA analog input — the same function on a different platform and backplane, so it is a functional counterpart rather than a drop-in replacement.

Correcting the source data

Earlier copy claimed Japanese manufacture. This is a GE Fanuc Automation product and no country of origin is claimed here, because neither the carton nor the manufacturer supports one.