Communication
Drivers
The CMXä
System can be used as the Operator interface and control device for a
large number of industrial control devices. In the CMXä
System, an instrument is any device used to supply process data or accept
control information for internal use or transmission to a field device. Up
to eight drivers can be operating simultaneously. The types of devices
that can be used as instruments on a CMXä
System include:
- Analog Input
Multiplexers (Kaye Scanners)
- I/O Subsystems (Opto
22, Analog Devices)
- Single Loop
Controllers (Honeywell UDC 3000, 5000, 6000, Gultons)
- AC and DC drives
(A-B, Unico,.)
- Programmable
Controllers (A-B, GE, Modicon, PLC Direct, Reliance,Triconix, TI)
- Analyzers (GCs, GPCs,
Power Meters, Ohm Meters)
- Distributed Control
Systems (TDC 3000 Ò)
- Other Computers
Each
device can be multi-dropped to accommodate up to 64 devices operating under the
same protocol. CMXä reads
these instrument inputs as a group according to their classification. In
CMXä , classes include
digital inputs and outputs, analog inputs and outputs, thermocouple inputs, PID
image, single loop controllers, etc.
CMXä
supplies several standard displays specifically for monitoring
instruments at all three levels:
- Instrument
Status Display provides an overview
- Multi-Drop
Display gives an overview for the currently-selected instrument
- Class
Display shows the instrument class overview for the selected multi-drop.
- Group
Display
The
operation of all instruments connected to a CMXä
System is controlled by the Universal Instrument Interface. This is
a software device that allows information from many different sources to be
integrated into a single process database for access by any Tag in the System.
This provides the Application Engineer and Operator with a set of tools
and displays that are independent of the process information, thereby
simplifying system configuration and operation.
Dumb/Intelligent
Multiport Controllers
CMXä
also support industry standard multi-channel serial dumb and intelligent
multiport controllers. The intelligent multiport controllers use their
on-board intelligence to manage I/O, offload the CPU, and maximize the
throughput and performance of all serial communication devices.
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