Specifications

Table Of Contents
APPENDIX C: EVENT PROGRAMMING
Page 200 MRC-565 Packet Data Radio Operations & Maintenance
EVENT,DEL,ALL
SCALE,TEMP,0.25,-64.0
EVENT,ADCHI,TEMP,50.0,960,9600,CAN,002
.
. other MRC-565 initialization commands
.
EVENT,START
Example 4: MRC-565 Low Temperature Notification
Suppose a system that requires notification of the MRC-565 enclosure becoming excessively
cold. The following is the script for initializing the MRC-565 for the detection and notification of
low temperature using canned message number 3. This example the same temperature scaling as
the previous example. The event occurs when the temperature A/D channel is at -30 degrees C or
below for one minute or more (960 ticks). The event ends when the temperature goes above -30
degrees C for 10 minutes (9600 ticks).
EVENT,STOP
EVENT,DEL,ALL
SCALE,TEMP,0.25,-64.0
EVENT,ADCLOW,TEMP,-30.0,960,9600,CAN,003
.
. other MRC-565 initialization commands
.
EVENT,START
Example 5: MRC-565 Temperature Control
Suppose a system that requires thermostatic-like control of the MRC-565 enclosure when it
becomes excessively warm or cold. The following is the script for initializing the MRC-565 for
the detection and correction of temperature out-of-bounds conditions. This example uses the
same temperature scaling as the previous two examples. The same temperature thresholds are
used. Instead of sending canned messages, it uses relay closures to turn a heat pump on and off
as needed to heat and cool the equipment room as needed. Relay closure RO5 is used to turn the
heat pump on and off in cooling mode. Relay closure RO6 is used to turn the heat pump on and
off in heating mode. RTS is used to detect heat pump failure. If the heat pump fails indicated by
RTS going low for 5 seconds, canned message 4 is transmitted.