GESeries Six Internal Memory Module, 8K 16-Bit Words Battery-Backed CMOS, Table & Scratchpad

Product Description

What this part is

A GE Fanuc Series Six Internal Memory module, catalogue number IC600CB504A. It is a full-size circuit module that lives in the Series Six Model 600 or Model 6000 CPU rack and provides 8K 16-bit words of battery-backed CMOS memory for the PLC’s own housekeeping data.

It is a rack-resident CPU-rack module, and the memory it holds is system data: the Status Table, Override Table, Transition Table and Scratchpad. Ladder programs live on the separate Logic Memory modules, and register data lives on the Register Memory module IC600CB508.

Decoding the order code

IC600: GE Fanuc Series Six product line. CB: circuit board with faceplate, CPU-rack class module, as opposed to BF, the I/O-rack class. 504: Internal Memory module. A: revision suffix. A unit with an equal or higher alpha suffix replaces one with a lower suffix.

The numbers E300050837, 44A297015-G01 and 44A296382-001 are GE internal drawing and assembly numbers marked on the board and its subassemblies. The catalogue number to order against is IC600CB504A.

What this module does

It holds Table and Scratchpad memory in battery-backed CMOS so I/O status, overrides and transition states survive a power failure. It also carries a DIP-switch array that declares to the CPU how much Logic Memory is installed, in 2K increments, and in which of the Logic Memory board slots (A, B, C, D) it sits. A Model 600 CPU uses slot A only. A Model 6000 CPU accepts up to 32K of Logic Memory across the four slots.

Published specifications

Function: Internal Memory module, Table and Scratchpad memory, Series Six CPU rack. Capacity: 8K 16-bit words. Memory type: CMOS, battery-backed by an on-board lithium cell. Contents: Status Table, Override Table, Transition Table, Scratchpad. Configuration: DIP-switch array declaring Logic Memory size in 2K increments and slot position. Indicators: BATTERY LED (lithium cell state) and PARITY LED (Logic Memory access parity error), visible through a faceplate lens, both operating only in a powered CPU rack. Power requirement: 5 V DC, 650 mA maximum, supplied by the CPU power supply. Circuit board: 8.15 x 11.0 in / 208 x 280 mm. Faceplate: 12.45 x 1.175 in / 317 x 30 mm. Operating temperature: 0 to 60 °C. Storage temperature: 0 to 70 °C. Humidity: 5% to 95%, non-condensing. Compatible CPUs: Series Six Model 600 and Model 6000. Reference document: GEK-83501B, Internal Memory Module.

Mounting data

Circuit board: 8.15 x 11.0 in / 208 x 280 mm. Faceplate: 12.45 x 1.175 in / 317 x 30 mm. Rack space: one CPU-rack slot. Power draw: 5 V DC, 650 mA maximum from the CPU power supply. Logic Memory assignment: consecutive addressing from slot A, with a maximum of 8K, four 2K increments, on any one Logic Memory slot. Battery connection: two-pin lithium battery lead to one of the male jacks beneath the battery, under the top board cover.

Quantity and configuration

One module.

Interchange guidance

Replaces lower-suffix IC600CB504 units, and is superseded by higher suffixes. Related but different parts on the same platform, not interchangeable with this one: IC600CB508 Register Memory module (1K 16-bit words of register data), IC600CB503 I/O Control module, IC600CB507 8K Logic Memory module, IC600CB513 and the IC600LX Logic Memory family. IC600FP504 is the faceplate alone and IC600BF504 the alternate board designation. Also written IC600-CB504A, IC600 CB504A, IC6OOCB504A (letter O for zero) and CB504A.