Hardware - Omron SYSMAC C200H-ASC02 Operation Manual

The ASCII Unit is an intelligent PC peripheral device designed to make a PC-based control system more flexible and
powerful. The ASCII Unit, programmed in BASIC, can be used for statistical quality control, system monitoring, data
processing, report generation, and other tasks.
The ASCII Unit is a companion processor that relieves the PC of some of its housekeeping, monitoring, and decision
making functions. Using BASIC, it is easy to program the ASCII Unit to process data collected by the PC and to imple-
ment decisions based on the results.
The PC is constantly monitoring all of its input lines. Individual inputs might represent counts, time intervals, tempera-
ture, position, data values, and many other parameters. Based on the values of these inputs, the PC must send the appro-
priate signals to the various output devices to adjust or maintain the operation of the controlled system.
The PC makes decisions based on predefined values stored permanently in its memory. For example, the PC might be
programmed to monitor the temperature of a mechanical system. It continuously compares the monitored temperature
with a "danger" value stored in memory. If the system temperature exceeds this value, the PC could be programmed to
shut the system down until the temperature falls below a "safe" level.
The above is a very basic example. In a more complicated system, it might be necessary to process large quantities of
data from many different inputs, and based on the results of mathematical, relational, and logical computations, come to a
decision that the PC must take a particular course of action. With an ASCII Unit, the PC can delegate these data process-
ing and decision making tasks. Because the ASCII Unit is programmed in BASIC instead of Ladder Diagram Program-
ming, it is better suited for data processing tasks.
The ASCII Unit also allows the user easy access to any desired information in any BASIC format via an attached printer
or display terminal.
Using the ASCII Unit for intelligent support, the PC based control system becomes a more powerful, flexible, and effi-
cient tool.
This section describes the external hardware of the ASCII Unit. The front and back panels of the ASCII Unit contain
switches, buttons, connectors, and indicators which enable the user to set up, control, and monitor ASCII Unit operations.
1-1 Front Panel
1-2 Back Panel
1-3 System Configuration
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SECTION 1

Hardware

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