Campbell Scientific COM310 Voice Communications Modem - Manual (Page 17)

COM310 Voice Communications Modem
Voice Beg / EndVoice
The VoiceBeg / EndVoice instruction pair enclose the code that is executed
when the datalogger detects a ring from its voice modem (at call in).
CallInVoice Subroutine
This subroutine contains the code pointed to by VoiceBeg / EndVoice that is to
execute after a call in occurs. It consists mainly of VoiceSpeak menu
announcements followed by a VoiceKey instruction prompting caller input and
a Select Case statement choosing the program’s responses to various caller key
presses.
CallOutVoice Subroutine
The CallOutVoice subroutine contains the code that is to execute when
VoiceBeg / EndVoice detects that a call out phone number has been dialed. It
prompts a responding party to press the # key after which it announces the
menu selections to hear: battery voltage, panel temperature, or thermocouple
temperature (SubKey1); datalogger port status of C1 - C8 (SubKey2); or
datalogger flag status of F(1) - F(8) (SubKey3). The state of the ports and flags
can be toggled as well as heard.
SlowSequence
Contains code that continually executes looking for the Diff 7 thermocouple to
exceed 85F in which case the variable “alarm” is set to True and a call out
(callback) is initiated. It dials the first phone number on the list. If no answer,
after 20 seconds the second number is dialed. The list of phone numbers is
dialed repeatedly until someone picks up and presses the # key (monitored by
the CallOutVoice subroutine) which resets “alarm” to False and allows the
responding party to proceed into the CallOutVoice menus.
4. System Components
4.1 COM310 Modem
Connecting a COM310 voice modem to a datalogger provides all COM210
supported functions plus the following:
• Voice retrieval of data (user or datalogger initiated)
• Reading/Toggling of datalogger control ports
• Reading/Toggling of program Flags
The COM310 ships with an SC12 cable (9-pin to 9-pin) for connecting
between the modem CS I/O port and datalogger CS I/O port.
The COM310’s communication port is designed to function with
a Campbell Scientific CS I/O port. This is not an RS-232 port.
See Appendix E for the CS I/O port description. NOTE
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