GE Fanuc IC693CPU331 CPU Module 10 MHz

IC693CPU331 GE Fanuc Modular CPU for Series 90-30 PLC Systems

Product Introduction

The IC693CPU331 is a single-slot modular CPU from GE Fanuc's Series 90-30 PLC family. Unlike embedded CPU baseplates, this module installs into a dedicated CPU slot on any 5-slot or 10-slot baseplate. It uses an 80188 processor running at 10 MHz, delivering a scan rate of 0.4 milliseconds per 1K of Boolean logic. For user programs, it offers 16 KB of memory, with support for optional EPROM or EEPROM storage. This CPU handles 512 discrete inputs, 512 discrete outputs, 128 analog input words, and 64 analog output words. Additionally, it supports up to four expansion or remote I/O baseplates, making it suitable for larger applications. The IC693CPU331 also includes a battery-backed clock, override functions, and 680 timers and counters.

Key Technical Specifications

The IC693CPU331 delivers robust performance for medium to large control systems. Its 80188 processor operates at 10 MHz, while the scan rate reaches 0.4 ms per 1K of Boolean logic. For memory, the module provides 16 KB of user program storage with battery-backed RAM as the default. You can also install optional EPROM or EEPROM for non-volatile data retention. In terms of I/O capacity, it supports 512 discrete input points and 512 discrete output points. Moreover, it accommodates 128 words of analog input (%AI) and 64 words of analog output (%AQ).

This CPU draws 350 mA at 5 VDC from the backplane. It features a single built-in serial port that supports SNP slave and SNP-X slave protocols. Additionally, it includes 680 timers and counters, along with shift register instructions. The IC693CPU331 also provides 1280 bits of discrete global memory, 1024 bits of internal coils, 256 bits of temporary coils, 128 bits of system status references, 2048 words of register memory, and 16 words of system registers.

Expansion and Communication Capabilities

The IC693CPU331 supports significant system expansion. You can connect up to four expansion baseplates or four remote I/O baseplates, greatly increasing the total I/O capacity. This flexibility makes the CPU suitable for distributed control architectures. For serial communication, the built-in port supports SNP and SNP-X slave protocols. However, for SNP master, SNP-X master, CCM, or RTU slave support, you will need a separate CMM module. Similarly, RTU master support requires a PCM module. The AD693CMM301 module adds two additional serial ports for enhanced connectivity. Furthermore, an SLP (State Logic Processor) is compatible with this CPU, providing multi-tasking control capabilities.

Memory Architecture and Data Storage

The IC693CPU331 features a comprehensive memory structure. The 16 KB user memory stores the application logic, while various reference tables handle discrete and analog data. The module includes 1280 bits of discrete global memory for inter-program communication. Additionally, 1024 bits of internal coils and 256 bits of temporary coils support flexible logic design. For analog values, 2048 words of register memory are available. The system registers, totaling 16 words, are for reference table viewing only and cannot be referenced in user logic. Default memory is battery-backed RAM, but you can install optional EPROM or EEPROM for more permanent storage. Unlike embedded CPUs, this module includes a battery-backed real-time clock for time-stamping functions.

Mechanical and Environmental Specifications

This modular CPU is built for reliable operation in industrial environments. Its operating temperature ranges from 0 to 60°C (32 to 140°F), while storage temperatures span from -40 to 85°C. Relative humidity should remain between 5% and 95%, non-condensing. The IC693CPU331 occupies a single slot and can be installed in any Series 90-30 CPU baseplate (5-slot or 10-slot). Specifically, it must be placed in slot 1, which is the dedicated CPU slot. The module draws 350 mA at 5 VDC from the backplane.

Installation and Configuration Guidance

Proper installation of the IC693CPU331 requires correct slot placement and system planning. Install this module in slot 1 of the baseplate, as this is the designated CPU position. For larger systems, you can connect up to four expansion baseplates or four remote I/O baseplates. When adding expansion racks, ensure that the total I/O count does not exceed the CPU's capacity. For programming, you can use Logicmaster 90-30 (DOS-based), VersaPro (Windows-based), or Proficy Logic Developer Machine Edition. The built-in serial port provides a direct connection to a personal computer running these software packages. For enhanced communication, you can add CMM, PCM, or SLP modules. Always verify that the total backplane current draw, including the IC693CPU331, stays within the power supply's limits.

Packaging List

• One IC693CPU331 modular CPU module

• One battery for RAM backup (pre-installed)

• One user manual (printed or digital)

• One serial port connector assembly

Shipping Method: FedEx, UPS, or DHL

Frequently Asked Questions

1. How many expansion baseplates can the IC693CPU331 support?
The IC693CPU331 supports up to four expansion baseplates and four remote I/O baseplates, allowing significant system scalability for larger applications.

2. What is the difference between this modular CPU and embedded CPU baseplates?
Unlike embedded CPUs, the IC693CPU331 is a modular unit that installs into a dedicated slot. It supports expansion, includes a battery-backed clock, provides override functions, and offers higher I/O capacity than most embedded models.

3. Can the IC693CPU331 support SNP master protocols?
The built-in port supports SNP slave and SNP-X slave only. For SNP master, SNP-X master, CCM, or RTU slave support, you will need to install a separate CMM module. For RTU master, a PCM module is required.

4. What programming software works with this CPU?
You can program the IC693CPU331 using Logicmaster 90-30, VersaPro Professional Edition, or Proficy Logic Developer Machine Edition. These packages support the SNP slave protocol for serial communication.

5. Does this CPU include a battery-backed real-time clock?
Yes, the IC693CPU331 includes a battery-backed clock, which is a key advantage over many embedded CPU models. This feature enables time-stamping and scheduled operations.