IC697CPU771 - 12 MHz, Expandable CPU Module

SPECIFICATIONS:

Part Number: IC697CPU771
Manufacturer: General Electric
Series: 90-70
Protocol Support: Genius
Isolation: 2000 volts Hi-Pot, 1500 volts
Bus Type: Daisy-chained bus cable
Bus Termination: 150 Ohm resistor
Communications: Global Data
Exchange rate: 128 bytes
LED Indicators: 2
Current Consumption: 300mA
Transient: 1500 Volts
Data Length: 128 bytes per message
Voltage: 5 Volts DC
Bus termination: 75/100/120/150 ohm resistor
Weight: 0.37 Kg
Shipping weight: 1.5 Kg
Country of Origin: United States
Availability: In Stock
Manual: GFK-0600F

FUNCTIONAL DESCRIPTION:

IC697CPU771 is a 12 MHz, Expandable CPU Module manufactured and designed by GE Mark 90-70 Series as part of the GE Speedtronic Gas Turbine Control Systems. The CPU 771 is a single-slot PLC CPU that is programmed and configured by MS-DOS or Windows-based programming software to perform real-time control of machines, processes, and material handling systems. The CPU 771 CPU communicates with I/O and smart option modules over the rack-mounted backplane (IC697CHS750, 782, 783, 790, 791) by way of the VME C.1 Standard format. Supported option modules include all IC697 LAN interface modules, several Coprocessor modules, a Bus Controller for IC660/661 I/O and Communications modules, in addition to all of the IC697 family of discrete and analog I/O modules. Operation of this module may be controlled by the three-position switch on the module or remotely by an attached programmer and programming software. CPU status is indicated by three green LEDs on the front of the module.

INSTALLATION OF EXPANDABLE CPU MODULE:

It is the responsibility of the OEM, system integrator, or end user to properly install the PLC equipment for safe and reliable operation. Product manuals provide detailed information about installation, startup, and proper use of the PLC equipment. The installation manual, shipped with your PLC programming software, describes how to properly install the equipment. If the PLC installation must comply with supported standards, such as FCC or CE Directives. The module should power up and blink the top LED. When the diagnostics have been completed successfully the top LED stays on and the middle and bottom LEDs are off. The CPU is now ready to be programmed. After the program has been verified the toggle switch may be moved to the appropriate operation mode position. The LEDs indicate the position of the toggle switch and the state of the program.

EXPANSION MEMORY:

The CPU 771 must have a CMOS expansion memory board. The CMOS expansion memory board provides CMOS RAM of 64, 128, 256 or 512 Kbytes. The battery that supports this memory is located on the main CPU board housing. Installation of a CMOS expansion memory board on the CPU will require initialization of the CPU with the programmer.

PROGRAMMER CONNECTION PARALLEL:

This port provides a serial connection to a Work Station Interface board installed in the programming computer. The serial connection can also be made from the serial port on the CPU to the serial port on the programming computer, or other serial device, through the RS-422/RS-485 to RS-232 Converter (IC690ACC900) or RS-232 to RS-422 Miniconverter (IC690ACC901). This connection can be made with available cables or you may build cables to fit the needs of your application.

PROGRAMMER CONNECTION ETHERNET:

Connecting your programmer via an Ethernet TCP/IP network requires the installation of an Ethernet Interface module in the PLC. This can be either the Ethernet Controller, IC697CMM741, or the Ethernet Interface (Type 2), IC697CMM742. Before connecting your programmer and PLC to the Ethernet TCP/IP network you must set the IP address in the Ethernet Interface. After setting the IP address, connect the PLC and the programmer running Windows software to the Ethernet Interface.

CONFIGURATION:

The IC697 CPU and I/O system are configured with MS-DOS or Windows-based programming software. There are no DIP switches or jumpers used to configure the system. The CPU verifies the actual module and rack configuration at power-up and periodically during operation. The actual configuration must be the same as the programmed configuration. Deviations are reported to the CPU alarm processor function for configured fault response.

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FREQUENTLY ASKED QUESTIONS:

What is the Expandable CPU Module?

The Expandable CPU Module is a 12 MHz CPU Module manufactured by General Electric as part of the 90-70 Series. It is primarily designed for use in GE Speedtronic Gas Turbine Control Systems and serves as a PLC CPU in various industrial control systems.

What is the required voltage and power consumption for the CPU module?

The Expandable CPU Module operates on a 5 Volts DC power supply. It consumes a current of 300 mA during operation. Power requirements should be met to ensure stable functioning and proper power management is necessary to avoid operational issues, especially when expanding the system.

How is the system configuration performed for the CPU module?

The CPU Module and its connected I/O system are configured using MS-DOS or Windows-based programming software. Unlike some older systems, there are no DIP switches or jumpers used for configuration. At power-up and periodically during operation, the CPU verifies the actual system configuration against the programmed configuration.