GE-FanucIC693CPU331-CESeries 90-30 Single-Slot CPU Module, 80188 at 10 MHz, 16K User Memory, 512 In / 512 Out

Product Description

What this part is

GE Fanuc IC693CPU331 is the CPU331 processor for the Series 90-30 programmable controller. It is the brain of the rack: it executes the ladder program, scans the I/O modules and drives backplane communication. This is a single-slot CPU module, a card that plugs into the dedicated CPU slot of a Series 90-30 baseplate. It is not a baseplate and not a rack; the baseplate, commonly the IC693CHS391, is a separate purchase.

Order code breakdown

IC693: GE Fanuc Series 90-30 product family. CPU: central processing unit module. 331: the model within the 90-30 CPU range, being an 80188 processor with 16K bytes of user program memory in a single slot. -CE: the CE-marked build for European conformity, functionally the same processor.

Published specifications

CPU type: single slot CPU module. Processor: 80188, 16-bit. Processor speed: 10 MHz. Typical scan rate: 0.4 ms per 1K of boolean contact logic. User program memory: 16K bytes maximum, fixed and not expandable. Discrete input points (%I): 512. Discrete output points (%Q): 512. Discrete global memory (%G): 1280 bits. Internal coils (%M): 1024 bits. Output (temporary) coils (%T): 256 bits. System status references (%S, %SA, %SB, %SC): 128 bits, 32 bits each. Register memory (%R): 2048 words. Analog inputs (%AI): 128 words. Analog outputs (%AQ): 64 words. Maths: integer operations, with no floating-point hardware. Total baseplates per system: 5, being one CPU baseplate plus up to four expansion or remote baseplates. Load required from the rack power supply: 350 mA from the +5 V DC supply. Operating temperature: 0 to 60 °C (32 to 140 °F) ambient. Approximate dimensions: 18 x 6 x 18 cm. Approximate weight: 0.3 kg.

Specifications in application

CPU331 sits in the lower-middle of the 90-30 range and suits small to mid-sized sequential control: conveyor lines, machine sequencing, packaging, simple process skids. At 0.4 ms per 1K, a few thousand rungs scan in single-digit milliseconds, which covers relay-replacement duty.

The 16K bytes of user program memory is fixed, with no memory expansion option, so a larger program calls for a higher CPU such as the CPU341. There is no floating-point hardware: the 80188 does integer maths only, so scaling, PID-style arithmetic and unit conversion are written in integer form.

The 512 discrete inputs and 512 discrete outputs, with 128 analog input words and 64 analog output words, is a generous envelope for a four-expansion-baseplate system, so program memory is usually the binding constraint rather than I/O count.

What is included

CPU module only, as pictured. This listing does not include a baseplate or backplane; the CPU takes a Series 90-30 CPU baseplate such as the 10-slot IC693CHS391 or a 5-slot equivalent, and there is only ever one CPU baseplate per system. Also not included: a rack power supply (the CPU draws 350 mA from it but does not contain one); any I/O or option modules; expansion baseplates or the expansion cable; a memory cartridge or backup battery; a programming cable; Logicmaster 90-30, VersaPro or Proficy Machine Edition software; or documentation. Communications option modules for Ethernet, Genius and Profibus are separate purchases.

Mounting data

The CPU occupies Slot 1 of a modular CPU baseplate, labelled CPU/1, a unique connector size that accepts only a CPU or a designated special option module such as the IC693BEM330 FIP Remote I/O Scanner. It does not seat in a numbered I/O slot. The power supply occupies the unnumbered leftmost slot, which likewise takes nothing else. A modular CPU baseplate is Rack 0 by default. The CPU331 supports a maximum of four expansion baseplates, with total interconnecting cable of 50 ft (15 m). The module is static-sensitive.

Interchange guidance

IC693CPU331-CE and IC693CPU331 are the same processor, the CE suffix denoting the CE-marked build. Other 90-30 CPU numbers are different processors rather than equivalents: CPU340 and CPU341 offer more program memory, and CPU350 and above raise the expansion-baseplate limit from four to seven, so moving up is an upgrade that may require a configuration change. A program written for a CPU341 may exceed this CPU’s 16K. Related items sold separately include the IC693CHS391 10-slot CPU baseplate, IC693CHS392 10-slot expansion baseplate, IC693CHS398 5-slot expansion baseplate, and IC693 series discrete and analog I/O modules. Also searched as IC693-CPU-331-CE, IC693 CPU 331, CPU331, IC693CPU331CE, and GE 90-30 CPU module.