K-WANG
64 MHz, 32-Bit Floating Point Central Processing Unit, 1 Mbyte Memory, for IC66* Triple Modular Redundancy Systems
GE FANUC IC697CPM790 PLC CPUs
Features
Single slot CPU
Provides 1 Mbyte of battery-backed memory in the
same slot (up to 512 Kbytes available for use by
ladder diagram application program)
Supports floating point calculations
Up to 12K discrete inputs and outputs (any mix -
simplex mode only); 2048 voted discrete inputs, 2048
voted discrete outputs
Up to 8K analog inputs (simplex mode only) and
8K analog outputs (simplex mode only); 1024 voted
analog inputs
0.4 microseconds per boolean function
64 MHz, 80486DX2 microprocessor
Supports IC660/IC661 I/O (and IC697 I/O in simplex mode only)
Programmed by MS-DOS, or Windows software
products running on Windows 95 or Windows
NT over Ethernet TCP/IP or through the SNP
port.
Configurable data and program memory
Battery-backed calendar clock
Three position operation mode switch
Password controlled access
Remote programmer keyswitch memory
protection
Four status LEDs
Software configuration (No DIP switches
or jumpers)
Reference information inside front door
In-system upgradable firmware
Functions
The CPM 790 is a single slot programmable controller
CPU which allows floating point calculations. The CPM
790 is programmed and configured with MS-DOS or
Windows based programming software for use in
Emergency Shut-Down (ESD), fire and gas, and other
critical control applications. It 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.
The CPM 790 must be used in conjunction with a
Standalone C program which provides Triple Modular
Redundancy (TMR) operating and autotest routines. It
will not operate unless this program is included in the
loaded application program.
For detailed information on TMR systems, see
Reference 4. the IC66* Modular Redundancy Flexible
Triple Modular Redundant (TMR) System User’s Manual.
Supported option modules include IC697 LAN Interface
modules, Programmable Coprocessor, Alphanumeric
Display Coprocessor, Bus Controller for IC660/661 I/O
products, Communications modules, I/O Link Interface,
and all of the IC697 family of discrete and analog I/O
modules.
Figure 1. Typical GMR System Configuration
User Memory
Program and data memory for the CPM 790 is provided
by a memory board with 1 Mbyte of battery-backed
CMOS RAM. 512 Kbytes of this memory is available for the
user’s application program and data. This memory board is
an integral part of the CPM 790 module and is included
with the module.
Flash Memory
This module uses flash memory for storage of the
operating system firmware (this module does not support storage of user program in the flash memory). This
allows updates of the firmware without disassembling the module or replacing EPROMs. The operating system firmware is updated by connecting a
PC compatible computer to the module’s serial port
and running the Loader software included with the
firmware floppy disk.
Operation, Protection, and Module Status
Operation of this module can be controlled by the
three-position RUN/STOP switch or remotely by an
attached programmer and programming software.
Program and configuration data can be locked
through software passwords or manually by the
memory protect keyswitch. When the key is in the
protected position, program and configuration data can
only be changed by a programmer connected parallel
only (to the Bus Transmitter module). The status of a
CPU is indicated by the four green LEDs on the front
of the module.
Operating Temperature
The CPM 790 requires forced air cooling for proper
operation in ambient temperatures greater than 40C
(104F). A fan capable of 70 CFM (including filters)
should be located beneath slot 1 of the rack containing
the CPU.
Fan assemblies (IC697ACC721. IC697ACC724. and
IC697ACC744) can be ordered for direct mounting on
the IC697 rack. Refer to the applicable Programmable
Controller Installation Manual for detailed information.
Installation
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, startu
shipped with the PLC programming software, for
additional guidelines.
Installation should not be attempted without referring to the applicable Programmable Controller Installa- tion Manual.
Connect the battery to either of the battery connectors on the module (see Figure 2).
Put the toggle switch in the STOP position.
Put the keyswitch in the Memory Protection OFF position.
Make sure that rack power is off.
Install the CPM 790 module in slot 1 of rack 0.
Turn on power.
The module should power up and the top LED should
blink. When the diagnostics have completed
successfully, the top LED stays on and the second and
third LEDs are off. The fourth LED is off if the
keyswitch is in the OFF position. The CPU is now
ready to be programmed (if connected parallel, the CPU
can be programmed regardless of key position). After
the program has been verified the toggle switch can be
moved to the appropriate operation mode position.
The LEDs indicate the position of the toggle switch,
memory protection status, and the state of the program.
Programmer Connection, Parallel
For a parallel interface (MS-DOS programmer only) the
programmer is connected to the top port on the Bus
Transmitter Module (IC697BEM713). Consult Reference
1 for a description of programming functions.
User name | Member Level | Quantity | Specification | Purchase Date |
---|