GE IS200ACLEH1ACB Application Control Layer Module (ACLE)

Product Overview

The IS200ACLEH1ACB is an Application Control Layer Module (ACLE) manufactured by General Electric for the EX2100 control systems. This microprocessor-based master controller manages various tasks over communication networks such as Ethernet™ and ISBus. It fits into two half-slots within a standard Innovation Series drive or EX2100 exciter board rack, offering robust control and communication capabilities.

Hardware Features

Integrated Circuit Features

• Central Processing Unit (CPU): 486 processor running at 100 MHz with a 16 K byte internal L1 cache.
• Memory:
  • 8 MB Dynamic Random Access Memory (DRAM)
  • 4 MB Flash memory for the Basic I/O System (BIOS)
  • 128 Kbytes Level 2 (L2) Cache
• Connectivity:
  • High-speed Ethernet and ISBus communication ports
  • COM1 and COM2 serial ports
  • Peripheral Component Interconnect (PCI) controller
  • Bus target interface

PCI Controller

• Manages memory, I/O, and configuration transfers to/from the PCI bus.
• Facilitates 152 ns cache line fills between L2 and L1 caches.

BIOS (Basic Input/Output System)

• 1 MB (128 KB x 8) flash memory device mounted in an ACL socket.
• Supports redirection of video display to COM1 if no VGA board is installed.

PCI/ISA Bridge

• Connects to the CPU via the Address and LINK buses.
• Manages system clock, reset logic, keyboard, speaker control, and advanced power management.

Software Features

• BIOS Initialization: Identifies hardware and directs output display to COM1.
• GE Extended BIOS:
  • Supports serial loading of the operating system via COM1.
  • Displays CMOS settings and supports RS-232C downloads.
  • Manages specific hardware initialization and enables flash disk support.

GE Control Systems Toolbox

• Configures runtime actions and stores application code as Pcode in memory.
• Allows online monitoring, parameter changes, and firmware upgrades over Ethernet.
• Uses Serial Loader for operating system upgrades and configuring TCP/IP addresses.

Connector Pin Signals

The ACL faceplate includes user connectors for communication and control interfaces:

• COM1/2 Serial Ports: Provide serial communication interfaces.
• P3 Ethernet Interface Connector: Facilitates high-speed network connections.
• ISBus Connectors: Enable robust communication with the control system.

Technical Specifications

Applications

The IS200ACLEH1ACB module is widely used in:

• Gas and Steam Turbine Control Systems: Facilitates efficient turbine operations.
• Industrial Automation: Supports critical control functions in complex systems.
• EX2100 Exciter Systems: Ensures reliable power management and control.