GE IC693CPU364-BD CPU | 32-bit 64 kB Series 90-30

This single-slot central processing unit serves as the main controller for GE Series 90-30 PLC systems. It executes user application logic for industrial machine and process control. Therefore, it delivers reliable real-time control for manufacturing and automation applications.

Physical and Processor Specifications

The GE IC693CPU364-BD measures 12.5 cm in length and 9.0 cm in width. Moreover, its CPU weight equals approximately 0.32 kg for rack mounting. A single 48-pin male connector links this CPU to the Series 90-30 backplane. Additionally, the processor includes built-in communication ports and memory expansion.

Parameter	Specification
Brand	General Electric (GE)
Full Model	IC693CPU364-BD
Category	Single-Slot Central Processing Unit
Dimensions (L x W x H)	12.5 cm x 9.0 cm x 5.5 cm (4.92″ x 3.54″ x 2.17″)
CPU Weight	0.32 kg (0.71 lbs)
Backplane Interface	1 x 48-pin Male Connector (Series 90-30 Rack)
Power Supply Input	5 VDC from Backplane (1.2 A Typical)
Power Consumption	6.0 W (Typical)
Processor Type	32-bit Microcontroller (50 MHz)
Program Memory	64 kB RAM (Battery Backed)
Data Memory	32 kB RAM (Retentive with Battery)
Backup Battery	IC693ACC301 (Lithium, 5 Year Life)
Execution Speed	0.5 µs per Boolean Instruction
Built-In Communication Ports	1 x RS-232 (Programming) + 1 x RS-485 (Genius)
Supported Protocols	Modbus RTU + GE SNP + Genius Bus
Baud Rate Range	9600 to 115200 baud
Memory Expansion Slot	Yes (Flash or RAM Modules Up to 256 kB)
Maximum Digital I/O	1024 Points (with Expansions)
Maximum Analog I/O	128 Channels (with Expansions)
Programming Software	Logicmaster 90 + Proficy Machine Edition
Programming Languages	Ladder Diagram (LD) + Instruction List (IL) + C
Task Types	Cyclic + Periodic + Event + Interrupt
On-Board Components	1 CPU IC + 4 Memory Chips + 2 UARTs + 1 RTC + 2 Line Drivers + 2 Optocouplers + 6 Protection Diodes + 1 Voltage Regulator
Energy Storage	3 x 100 µF Electrolytic Capacitors (35V) + 2 x 10 µF Tantalum (25V) + 1 x CR2032 Backup Battery
Battery Backup Time	5 Years (Typical for RAM and RTC Retention)
Scan Time	0.6 ms per 1 kB of Ladder Logic
Operating Temperature	0°C to +60°C (32°F to 140°F)
Mounting Type	Series 90-30 Rack (Single Slot)
Status Indicators	1 Green LED (Power) + 1 Green LED (Run) + 1 Red LED (Fault) + 1 Yellow LED (Battery Low) + 2 Yellow LEDs (Port Activity)

Processing Performance and Memory Architecture

The GE IC693CPU364-BD features a 32-bit microcontroller running at 50 MHz. Specifically, the 64 kB program memory stores complex ladder and C applications. In addition, the 32 kB data memory holds process variables and retentive values. Moreover, the execution speed of 0.5 µs per Boolean instruction ensures fast response. Furthermore, a lithium battery retains RAM contents for up to five years. Consequently, this CPU delivers high-performance control for demanding Series 90-30 applications.

Built-In Communication and Expansion Capabilities

You will find two communication ports on this single-slot central processing unit. For instance, the RS-232 port supports Modbus RTU and GE SNP for HMI connectivity. In addition, the RS-485 port handles Genius bus for distributed I/O networks. Moreover, the memory expansion slot accepts Flash or RAM modules up to 256 kB. Furthermore, the processor supports up to 1024 digital I/O points with expansions. Thus, this CPU integrates seamlessly into Series 90-30 automation architectures.

Built-In Real-Time Clock and Task Management

This single-slot CPU includes a real-time clock for time-stamped events. Specifically, the clock retains date and time during power loss using battery backup. In addition, the CPU supports cyclic, periodic, event, and interrupt tasks flexibly. Moreover, a built-in watchdog timer monitors program execution for faults continuously. Furthermore, the processor can execute C language blocks for complex mathematical operations. Therefore, the GE IC693CPU364-BD meets demanding response time requirements reliably.

Installation and Diagnostic Indicators

Six LED indicators provide operational status at a glance on this CPU. First, a green Power LED lights when the 5 VDC backplane supply is present. Second, a green Run LED flashes during normal program execution. Third, a red Fault LED indicates hardware or software errors. Fourth, a yellow Battery Low LED warns when the backup battery needs replacement. Finally, two yellow Port Activity LEDs illuminate during data transmission or reception. Additionally, the module includes a locking ejector for secure backplane insertion. Thus, you can diagnose system health instantly without external tools.