Description
Product Description
The GE Fanuc IC693BEM331 is a high-performance Bus Expansion Module (BEM) designed for the Series 90‑30 PLC platform. It extends the system by linking the main CPU rack to additional remote or expansion racks, enabling distributed control architectures and larger I/O configurations.
This module supports high-speed serial bus communication between racks, ensuring reliable data transfer and synchronized operation across all connected modules. With built-in diagnostics and status LEDs, the IC693BEM331 provides clear indicators for communication health and fault conditions. Installation is straightforward, fitting standard Series 90‑30 rack slots and drawing low current from the backplane.
Technical Specifications
| Specification |
Details |
| Model |
IC693BEM331 |
| Product Type |
Bus Expansion Module (BEM) |
| Compatible System |
Series 90‑30 PLC |
| Function |
Connects CPU rack to expansion racks for distributed I/O |
| Communication |
High-speed serial bus |
| Supported Expansion Racks |
Up to 7 per system |
| Maximum Cable Distance |
50 feet (15 meters) between racks |
| Installation |
Standard Series 90‑30 rack slot |
| Indicators |
LEDs for module and communication status |
| Power |
5 V DC from backplane, <300 mA |
| Diagnostics |
Fault detection, communication monitoring |
| I/O Support |
Up to 31 I/Os per module |
| Data Rate |
Maximum 128 bytes per transfer |
| Protection |
IP20 rated enclosure |
| Weight |
0.88 lbs |
Key Features
-
System Expansion: Extends Series 90‑30 PLC systems by linking multiple racks for distributed control.
-
High-Speed Bus Communication: Reliable, deterministic communication between CPU and expansion racks.
-
LED Diagnostics: Quick visual indicators for module status and communication health.
-
Scalable Design: Supports up to 7 expansion racks, enabling flexible system growth.
-
Easy Installation: Snap-in module fits standard rack slots, reducing installation time.
-
Robust Reliability: Built-in diagnostics improve uptime and system integrity.
Applications
-
Large-scale PLC systems requiring distributed I/O
-
Process control with remote expansion racks
-
Factory automation and modular PLC architectures
-
Systems requiring reliable data transfer between multiple PLC racks
FAQ
Q: How many expansion racks can IC693BEM331 support?
A: Up to 7 expansion racks per system.
Q: What is the maximum distance between racks?
A: 50 feet (15 meters) using standard cabling.
Q: Can this module provide diagnostic information?
A: Yes, LEDs indicate communication status and module health.
Q: Which PLC CPUs are compatible?
A: Compatible with IC693CPU311K, 321K, 331L or later, and select Series 6 controllers.
