GE IC693BEM320-1 GE IC693BEM320-2 GE IC693BEM320-3 GE IC693BEM320-4

The GE IC693BEM320 is a Bus Expansion Module (BEM) designed to extend the capabilities of GE Series 90-30 PLC systems. It enables flexible expansion of I/O modules, allowing engineers to increase system capacity without sacrificing reliability or performance.

Ideal for industrial automation applications requiring additional distributed I/O or remote module integration, the IC693BEM320 simplifies system expansion and supports seamless communication between the main CPU and extended racks.

Technical Specifications

Specification	Details
Product Type	Bus Expansion Module (BEM)
PLC Platform	GE Fanuc Series 90-30
Function	Expands I/O racks for Series 90-30 PLC systems
Supported Modules	Compatible with standard 90-30 I/O modules (digital, analog)
Communication Interface	Backplane bus connection to main CPU
Maximum Expansion	Supports up to 8 additional I/O modules per BEM320
Operating Temperature	0°C to +60°C
Storage Temperature	-20°C to +70°C
Dimensions (H × W × D)	102 × 70 × 120 mm
Weight	Approx. 0.55 kg

Recommended Related Models

The IC693BEM320 is commonly paired with:

IC693CPU350 / IC693CPU374 – Main CPUs managing expanded racks
IC693CHS391 / IC693CHS397 – Baseplates for expanded module integration
IC693PWR330 – Stable power supply for extended racks
IC693ALG / IC693ADC / IC693ACC series – Analog and digital modules compatible with expansion

This setup allows for flexible and reliable expansion of I/O modules without redesigning the system architecture.

Popular GE PLC Models

The IC693BEM320 is widely used with:

IC693CPU350
IC693CPU363
IC693CPU374
IC693MDL740
IC693CHS391 / IC693CHS397

It is the go-to choice for engineers needing modular system growth while maintaining Series 90-30 PLC compatibility.

Applications

The GE IC693BEM320 is ideal for applications that require modular I/O expansion:

Adding digital and analog modules to existing PLC systems
Large-scale process control with multiple remote or distributed I/O racks
Multi-actuator and multi-valve control in manufacturing systems
Retrofitting older Series 90-30 PLC systems to meet increased I/O demands
Supporting laboratory, test, and production automation environments

It ensures that expanding I/O capacity is efficient, reliable, and seamless.

Advantages

Flexible System Expansion – Easily add additional I/O modules to a Series 90-30 PLC
Seamless Integration – Fully compatible with standard GE 90-30 CPUs and I/O modules
Compact Design – Fits standard racks without occupying extra space
Reliable Communication – Maintains stable connectivity between CPU and expanded modules
Cost-Efficient – Reduces the need for adding extra CPUs or redesigning PLC systems

This module provides engineers with efficient and scalable system growth.

Technical FAQs

What is the primary function of IC693BEM320?
To expand I/O racks in Series 90-30 PLC systems.
How many additional modules can a BEM320 support?
Up to 8 standard 90-30 I/O modules per BEM.
Which PLCs are compatible?
Series 90-30 CPUs, including IC693CPU350, 363, and 374.
What types of modules can be connected?
Digital, analog, and communication modules compatible with 90-30 racks.
Does it require a separate power supply?
No, it uses the main rack or dedicated 90-30 power supply.
What is the operating temperature range?
0°C to +60°C.
Can it be used for remote racks?
Yes, as long as the backplane bus communication is maintained.
Does it affect CPU scan time?
Minimal impact when properly configured.
Is it suitable for retrofitting older PLC installations?
Yes, ideal for expanding existing 90-30 PLC systems.
Why choose IC693BEM320 over multiple CPUs?
It allows modular expansion of I/O without adding extra CPUs, saving cost and space.