FANUCA03B-0801-C12764-Point 24 V DC Digital Input Module ID64D, 20 ms Response, for Fanuc I/O Unit

Product Description

What this part is

A Fanuc ID64D digital input module, ordered as A03B-0801-C127 — a 64-point, 24 V DC input module for the Fanuc I/O Unit that serves the PMC side of a Series 10, Series 11 or Series 15 CNC control. It reads 64 field devices — limit switches, proximity sensors, pushbuttons, relay contacts — and presents them to the PMC ladder. Inputs are isolated, with a 20 ms response time, and the field wiring lands on connectors.

It is an input module only. There are no outputs on this card: it cannot drive a solenoid, a contactor or a lamp.

Decoding the order code

A03B – Fanuc prefix for I/O unit assemblies and the modules that populate them. Distinct from the board-level A16B / A20B prefixes and from the A02B control-unit prefix.0801 – the I/O Unit family group, serving the Fanuc I/O Unit on the System 10, 11, 12 and Series 15 generation controls.C127 – the specific module within that family.ID64D – the functional designation, and the field to work from. ID = digital input, 64 = 64 points, D = the module variant. Fanuc uses different mnemonics for the other directions — OD for digital output, AD for analog input, DA for analog output — so the designation tells you what the card does at a glance.

Published specifications

Designation: ID64DFunction: digital input module, input onlyPoints: 64Input voltage: 24 V DCResponse time: 20 msInputs isolatedField connection: via connectorPlatform: Fanuc I/O Unit on Series 10, Series 11 and Series 15 CNC controlsOccupies one module slot in the I/O Unit base

What these specs mean in practice

The 20 ms response time is the number to check against your application. It is comfortable for pushbuttons, guard switches, pressure switches and general machine interlocks, and it is deliberately slow enough to reject contact bounce and electrical noise. It is not fast enough for high-speed position capture, part-present sensing at speed, or anything you would otherwise put on a high-speed counter or skip-signal input. If the signal you are reading matters within a few milliseconds, this is the wrong class of module.

Match the designation exactly: ID64D and ID64C are different modules, and the trailing letter is the only thing separating them. Read what is printed on the card you are replacing rather than working from the A03B number alone. Slot position matters too — the I/O Unit derives module addresses from the slot, and a 64-point card consumes a large address block, so moving it shifts all 64 addresses in the PMC ladder.

What is not included

Module only. This listing does not include the I/O Unit base or rack, the I/O Unit interface / power module, the 24 V DC field supply, the field connectors, connector housings, crimp pins or terminal blocks, the wiring harness or field cabling, the I/O Link cable to the CNC, mounting hardware, or any PMC ladder, address configuration or documentation. The field connectors in particular are what most buyers still need, and they are not supplied here.

Quantity and configuration

Sold as 1 piece — one input module. Takeout, tested, in an opened box. Multiple units are in stock, so matched sets for a full I/O Unit rebuild are practical.

Installation and setup notes

Power down the I/O Unit and the field supply before removing or fitting a module; these are not hot-swappable. Handle the card by its edges with a wrist strap. Note the original slot position before removal, because slot position determines the PMC addresses. Verify the field supply is 24 V DC and correctly polarised before energising. After fitting, prove a handful of inputs on the PMC diagnostic screen before running the machine, and remember the 20 ms filter when you are timing anything against those inputs.

Interchange guidance

Searchable equivalents of the same part: A03B-0801-C127, A03B0801C127, A03B 0801 C127, ID64D, ID-64-D, ID 64 D, A03B-0801-C127-R. Related but not interchangeable: A03B-0801-C123 (ID64C) is a different variant of the same point count, and A03B-0801-C132 (ID32A) is a 32-point module. Modules designated OD, AD or DA are outputs or analog and are not substitutes for an input card.