PC3000 Complete Installation guide iss 12 - Elektro-Trading

The PC3000 System
System components
The PC3000 hardware is modular, allowing system size, I/O type and number and
communications facilities to be tailored to your application.
The major components within the PC3000 hardware are:
Rack
The rack forms the basic chassis into which all modules are fitted. There are no
address switches or backplane polarisation combs to be set. In the main, modules
may be installed in any posistion. Racks may be panel or bulkhead mounted.
Power supply
Every rack requires a power supply. This is a universal design permitting operation
over a wide range of international supply voltages. It provides the power for the
Local Controller Module or the Rack Interface Module, plus up to 12 I/O modules.
Local controller module (LCM)
This provides the ‘core’ of the PC3000 hardware. The Local Controller runs, in real
time, the control program which has been defined ‘off-line’ on the PC based
Programming Station. It is responsible for the control of all I/O, PID control,
communications, operator interfaces and time sequenced events.
Rack interface module (RIM)
This provides a means of expanding the I/O count of a PC3000 system by allowing
additional racks to be fitted. It handles the messages to the I/O modules under the
control of the Local Controller.
I/O modules
I/O modules provide the interface to the plant. A wide range of modules are available
permitting direct transducer interface, connections to a wide range of sensors and
actuators plus digital I/O for alarms, switches and interlocks.
Communications modules
Communication modules may be used to increase the number of serial ports on a
PC3000.
A wide range of communications protocols allow interfaces to PLC’s, remote
instruments, etc. A high speed network module is in development, which will allow
rapid real time data exchange between multiple PC3000 systems or between PC3000
and a supervisory production control computer.
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PC3000 Installation Guide