DE-3000 IOI 7-17
All rights reserved © ALTRONIC, LLC 2017
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19.0
AUTOMATIC CALL OUT USING AN EXTERNAL MODEM
19.1 The DE-3000 controller system can perform an automatic call out upon a fault
condition. When a fault occurs, the system will dial up to four preprogrammed
phone numbers stored in an external modem, negotiate communications and
send the first fault data log report message (the 999 command) to the Altronic
monitor program on a PC or to a customer supplied device.
19.2 An external modem of 9600 baud or greater, along with a null modem cable
or adapter connected to the RS-232 port on the controller, is used for remote
modem communications.
19.3 Configure the modem using the monitor program:
• 9600 baud only (S37=9)
• 8 data bits
• 1 stop bit
• no parity
• DTR is always on (&D0)
• Local Echo off (E0)
• Display verbal result codes (V1)
• Auto answer on the first ring (S00=1)
• Set inactivity timer to one minute (S19=1)
• Store the current configuration as profile 0 in nonvolatile memory (&W0)
• Use modem profile 0 (&Y0)
• Store up to four telephone numbers in nonvolatile memory (&Zn=x)
n = memory location
x = phone number to be stored
For more information on configuring the modem, see section 30.10. Please
refer to the modem’s user guide and reference manual.
19.4 Upon a fault, the controller sends the dial string to dial the first stored phone
number in the modem (ATDTS0). If communications are established, the first
fault data log report message is sent. After the first fault message is sent, a
pause of about ten seconds occurs allowing for time to request other data logs.
After ten seconds of no activity, the controller causes the modem to go offline.
The first fault data log is then available on the remote PC for customer use. If
more than one phone number is programmed in the modem, the controller will
attempt to dial each number until all numbers have been successfully negotiat-
ed. If the first stored phone number in the modem is not available, the controller
will immediately dial the second stored phone number. After attempting to dial
all of the programmed phone numbers and if any of them were not answered, a
pause of 10 minutes will occur.
After the 10 minute wait period for the line to clear, the controller will send the dial
string for the unanswered stored phone numbers. This sequence will occur twenty
times or until it gets a connect signal for each programmed phone number. If all
faults are cleared by initiating a reset, the controller will cease dialing out.
NOTE: THE RELATED MODEM CONFIGU-
RATION COMMANDS ARE SHOWN IN
PARENTHESIS. THE COMMANDS NOT
LISTED ARE SET TO FACTORY DEFAULTS.
MODEM PROFILE 0 (ZERO) IS USED
BY THE CONTROLLER SYSTEM. UP TO
FOUR PHONE NUMBERS CAN BE PRO-
GRAMMED IN THE MODEM.
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