Owner`s manual

M SERIES DAC

INTRODUCTION TO THE M SERIES DAC

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THE V79/V80 PDI modules are designed for use with the M16 (DAC) Data

Acquisition Controller. Both modules are used to detect events where an event is

defined as a change-in-state of an input and return to the original state. The V79 PDI-

1 module is used for the detection of switch closure in applications requiring

notification of device status such as burglar alarms, fire alarms, event counters and

timers, process control, etc.. The V80 PDI-2 is used for the detection of optically

isolated voltage inputs in applications requiring industrial control of motors, process

monitoring, limit switch status, and the monitoring of relay status.

All events detected by either module are recorded as an event sample and sent to a

host computer/controller connected to a host module. The current status of input

channels may be provided to the host computer/controller upon request. Event

samples or input channel status may be provided with a "time stamp" or "Time Tag"

which is available through the use of a "time-of-day" clock located in the base unit. A

time tag includes the month, day, year, hour, minute and second the event occurred or

the input channel status was taken.

Event status is supplied to the host computer/controller in one of the following

modes:

1) Upon user request (COMMAND).

2) At a specific date/time (SCHEDULE).

3) Real time reporting of events (i.e., as events occur IMMEDIATE).

THE V82 Programmable Control Module (PCM-1) is used to monitor, control, and

report information about devices connected to the M-Series peripheral modules. The

M-Series peripheral modules are used to interface directly to various devices such as

security/alarm systems, process control systems, medical data systems, and

environmental control systems.

Bay Tech provides C library functions specific to the various peripheral modules.

These functions allow you to write C programs to perform data acquisition and

control applications such as process control, remote control and monitoring and data

gathering.

Programming the V82 PCM-1 is accomplished by writing a C-based source program,

compiling and linking this program for use on the 64180 microprocessor, and

downloading the corresponding HEX file to the flash EPROM. The C library

functions provided are specific for the 2500AD software, Inc. 64180 C compiler.

THE M03 memory module can hold from 1MB to 16MB total buffer size. It is used to

expand the memory capabilities of the various module buffers.