Specifications

Table Of Contents
APPENDIX C: EVENT PROGRAMMING
Page 180 MRC-565 Packet Data Radio Operations & Maintenance
APPENDIX C: EVENT PROGRAMMING
The MRC-565 supports customer-programmed event logic. Discrete and analog inputs can be
monitored by the event program to detect "events" which then perform a defined "action".
Actions may include the controlling of discrete output signals, incrementing counters, setting
timers, and transmission of canned messages and issuance of various reports. This means that
customers are somewhat independent of factory reprogramming from MRC and that MRC-565
behavior can be readily modified in the field. It also means that operators now have limited
power to make the MRC-565 react to various field-programmable conditions.
The operator sets up the event program when installing the MRC-565 or during maintenance and
operation. Because the event program is implemented via operator commands, it can be entered
not only at a local maintenance console, but also via the remote command capability. The event
programs are stored within a non-volatile table in the MRC-565 battery-backed-up RAM. They
are not lost due to external power failure. When the external power is restored, they will be
enabled to respond to events again.
Programming is usually done by creating a "script file" of the required event commands, and
loading these into the MRC-565 using XTERM or any other terminal emulator software.
Several input/output lines are available directly from the processor card of the MRC-565
modems. In addition, an I/O expander card (XIO) can be optionally used which uses 3 lines to
implement a high-speed serial link for accessing the signals of the expander card.
MCC-545 Rf Modem
EVENT SCRIPT
FILE
TEXT EDITOR
XI O
$HT
TEXT
MESSAGES
REMOTE
COMMANDS
DISCRETE
INPUTS
DISCRETE
OUTPUTS
ANALOG
INPUTS
DISCRETE
INPUTS
DISCRETE
OUTPUTS
ANALOG
INPUTS
RF LINK
SERIAL
PORT
MCLK
MDIR
MSET
POS
TEXT
MSG
SDATA