Test Instrumentation & Control ¦ Group 3 ¦ Control

Group3 Control

Group3 Control is designed for scientific and industrial applications and in particular high voltage particle accelerator control.

A card plugged into the control computer communicates by fibre optic cables with a series of small modules which house the I/O boards. Each module is populated with the I/O boards required at that point, and placed close to the controlled apparatus. The fibre optic cable traverses any voltage and distance, providing noise free, high speed communications.

Very high channel density per computer slot can be achieved with 3 I/O boards per module and 16 modules per fibre loop.

Group3 Control

Group 3 ControlNet Specification


System Isolation	Fibre Optically Isolated, no limit to voltage isolation &no noise pick-up during transmission
System Distance	Using Plastic Fibre Optic Cable - upto 40m in one length. Using Glass Fibre Optic Cable - upto 3000m
System Resolution	Analog inputs - 16 bit, analogue outputs - 14 bit. Overall system transmittion resolutions is 14 bits
System Speed	Better than ± 0.25dB after 20 minutes warm up
(DI) Module	Size: h=112 x w=76 x d=140 (mm) Power: DC: 12-30Volts, 7w max. AC: 12-24Volts, 10VA max
I/O Board - Type A	Combined analogue and digital board. Analogue input, analogue output, 8 digital channels
I/O Board - Type B	24 Digital Channels, each channel can be independently set as an input or as an output
I/O Board - Type C	Eight analogue inputs. (ADCs) 16 bit resolution
I/O Board - Type D	Eight analogue outputs. (DACs) 14 bit resolution

Key Features

Rugged Reliable Operation
Easy Set-Up
Choice of Control Software
Cost Effective
PID algorithm

Key Benefits

Small Size
Modular Design
High Resolution
High Update Rate
High Channel Density

sales@ppm.co.uk +44 1793 784389