Campbell COM320 Instruction Manual

INSTRUCTION MANUAL

COM320 Voice Phone Modem

Copyright © 2002- 2016

Campbell Scientific, Inc.

Revision: 6/16

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Table of Contents

PDF viewers: These page numbers refer to the printed version of this document. Use the
PDF reader bookmarks tab for links to specific sections.

1. Introduction ................................................................ 1

2. Specifications ............................................................. 2

3. QuickStart ................................................................... 2

3.1 CR1000 Example Program .................................................................. 6

3.2 Example Program Description ............................................................. 9

3.2.1 VoiceSetup() ................................................................................. 9

3.2.2 Voice Beg / EndVoice ................................................................ 10

3.2.3 CallInVoice Subroutine .............................................................. 10

3.2.4 CallOutVoice Subroutine ............................................................ 10

3.2.5 SlowSequence ............................................................................. 10

4. System Components ............................................... 10

4.1 COM320 Modem ............................................................................... 10

4.2 Surge Suppressor ............................................................................... 11

4.3 Voice Capable Dataloggers ................................................................ 11

4.4 Telephone ........................................................................................... 11

5. Datalogger Voice Programming .............................. 11

5.1 Features .............................................................................................. 11

5.1.1 Callback ...................................................................................... 12

5.1.1.1 Data Callback ................................................................... 12

5.1.1.2 Voice Callback ................................................................. 12

5.1.2 Voice Callin ................................................................................ 12

5.1.3 Voice Storage Data ..................................................................... 12

5.2 Voice Instructions .............................................................................. 13

5.2.1 VoiceBeg / EndVoice ................................................................. 13

5.2.2 VoiceSpeak ................................................................................. 13

5.2.3 VoiceKey .................................................................................... 13

5.2.4 VoiceNumber .............................................................................. 14

5.2.5 DialVoice .................................................................................... 14

5.2.6 VoiceHangup .............................................................................. 14

5.2.7 VoiceSetup .................................................................................. 14

5.2.8 VoicePhrases ............................................................................... 15

5.3 Data Callback ..................................................................................... 15

5.3.1 Example Data Callback Program ................................................ 15

5.3.2 Data Callback Instructions .......................................................... 16

5.4 Answer in Data Mode ........................................................................ 17

5.5 LoggerNet .......................................................................................... 17

6. Hardware Installation ............................................... 18

6.1 Site Requirements .............................................................................. 18

6.2 Powering the COM320 Modem ......................................................... 19

i

Table of Contents

Grounding the COM320 System ....................................................... 19

6.3

6.4 Telephone Service ............................................................................. 20

6.5 Connecting to a Surge Protector ........................................................ 21

7. Troubleshooting COM320 Voice Systems .............. 22

7.1 No Communications .......................................................................... 22

7.2 Communications Problems ................................................................ 23

Appendices

A. IC Information ......................................................... A-1

B. Updating and Configuring the COM320 ................ B-1

B.1 Removing the Cover to Access the USB Port ................................. B-1

B.2 COM320 USB Communications Cable ........................................... B-1

B.3 COM320 Driver Installation ........................................................... B-1

B.4 Downloading a New Operating System to the COM320 ................ B-2

B.5 Changing COM320 Settings ........................................................... B-3

B.6 Retrieving a Vocabulary List .......................................................... B-5

C. CS I/O 9 Pin Serial Port .......................................... C-1

D. COM320 Word List ................................................. D-1

D.1 COM320 Word List - Alphabetical Order ....................................... D-1

Figures

1-1. COM320 Voice Phone Modem ........................................................... 1

6-1. COM320 Hardware Connection Using Standard RJ11 Phone Jack .. 18
6-2. COM320 / CR1000 Using Surge Protection Device (where there’s

no available Standard RJ11 Connection) ....................................... 19

6-3. COM320 Grounding and Alternate 12Vdc Power ............................ 20

6-4. Top View of Surge Suppressor Wiring ............................................. 21

6-5. Side View of Surge Suppressor Wiring ............................................. 22

B-1. Send OS Screen in Device Configuration Utility ............................ B-3

B-2. Device Configuration Utility Screen ............................................... B-4

B-3. Device Configuration Utility Settings Editor .................................. B-4

C-1. COM320’s Male 9 Pin Connector ................................................... C-1

Tables

C-1. Pin Description ................................................................................ C-2

ii

COM320 Voice Communications Modem

1. Introduction

The COM320 is a voice-synthesized modem that supports the CR800, CR850,
CR1000, and CR3000 dataloggers. The COM320 allows the datalogger to
announce over the telephone specific variable data, present state of flags and/or
control ports, and the ability to toggle flags and/or control ports. Dataloggers
can also be programmed to call specific phone numbers with different
messages when specific conditions are met.

Although the primary function of the COM320 is voice communications, the
modem is also capable of data communications. In data mode, the COM320
supports standard datalogger functions including program send, data collection,
and data callback.

This manual provides information regarding COM320 specifications,
installation, and operation. Section 3, QuickStart
CR1000 voice callback/callin program with descriptions of the code.

(p. 2), presents an example

Section 6.3, Grounding the COM320 System
good earth ground connection to maximize protection of the COM320 against
lightning and electro-static discharge.

(p. 19), explains how to make a

FIGURE 1-1. COM320 Voice Phone Modem

1

COM320 Voice Communications Modem

NOTE

2. Specifications

Standards: V.92, K56Flex, V.90, V.34, V.32bis, V.32,

Registration: FCC US: 3A4M508BSM2-T-W

Compliance: View the EU Declaration of Conformity at:

Datalogger interface: CS I/O, SDC9 (Only one device using SDC9

Operating voltage: 12 Vdc

Current drain: 100 μA quiescent; 35 mA active

Operation: Full-duplex over standard analog phone lines

Operating temperature: –25 to 50 °C standard, –55 to 85 °C optional

Dimensions: 16.5 x 2.5 x 6.6 cm (6.5 x 1.0 x 2.6 in)

V.23, V.22bis, V.22, V.21, B212, B103

IC 2377 A-SM2TW

www.campbellsci.com/com320

can be connected to the CS I/O port.)

3. QuickStart

Weight: 0.16 kg (0.35 lb)

This section presents Basic_Voice_2.cr1, an example voice callback/callin
program written to demonstrate functions of the COM320. It can serve as a
starting point from which to build an application program. Customize the
voice code and merge your measurement sections with the voice code. Also
test the auto-disconnect functionality (that is, the datalogger will automatically
hang up after the specified number of seconds).

To demonstrate the example program, obtain the following items or their
equivalent:

1) COM320 (COM320_OS.03 or later OS)

2) SC12 Cable

3) CR1000 datalogger

4) 3 inches of thermocouple wire

5) PS150 Power Supply

6) Phone modem for PC

7) LED in series with 1000 ohm resistor

8) Analog phone line

The COM320 cannot interface with office digital phone lines.
Connect the COM320 to analog phone lines only, such as a fax line.

2

You will also need:

1) Windows compatible PC with available COM port.

2) LoggerNet 3.4.1 or later installed on PC.

The datalogger’s voice code is created along with the measurement program
using the CRBasic editor. Finish and debug the voice portion of the program
before adding the measurement code.

The example CR1000 voice callback/callin program supports the following
functions:

• Voice callin

• Voice callback

• Auto-disconnect

• Auto-redial

• Alarm reset

The following steps show how to build a station to demonstrate the example
voice callback/callin program. The voice station can further serve to test/debug
a custom voice program and merge it with an application program.

Step 1 – LoggerNet Setup

1) In LoggerNet Setup create the following device map:

COM320 Voice Communications Modem

2) Configure ComPort and PhoneBase for your PC’s phone modem.

3) Configure PhoneRemote to include the COM320’s analog phone number

followed by six commas and a 9.

4) Click on CR1000phone (renamed) and verify that the PakBus Address is 1.

Step 2 – Hardware Setup

1) Start with a CR1000 having factory settings. If unsure of settings, close

LoggerNet, connect SC12 cable from PC ComPort to CR1000 RS-232
port, run Device Configuration Utility, set Serial Port to match the PC
ComPort, Connect and click on the Factory Defaults button, Apply
settings and Disconnect.

2) Turn off PS150 if it isn’t already.

3) Connect CR1000 to PS150.

4) Connect SC12 cable from COM320 to CR1000 CS I/O port.

5) Connect analog phone line to COM320.

6) Turn on PS150.

7) Connect prepared thermocouple to CR1000’s DIFF 7 analog input.

3

COM320 Voice Communications Modem

8) Connect LED with 1000 ohm resistor connected to anode lead from C1 to

G (resister to C1).

Step 3 – Send BASIC_VOICE_2.CR1 to CR1000

1) Download BASIC_VOICE_2.CR1 from CSI web site under Support,

Downloads, Program | Examples, COM310 Examples to a folder on your
hard drive. (The download from the website is a zip file containing both
BASIC_VOICE_2.CR1 and Basic_Data_Clbk_1.CR1.)

2) From LoggerNet Toolbar run CRBasic Editor and open

BASIC_VOICE_2.CR1.

3) Change PHONE1 (a constant in SlowSequence near bottom of program) to

your office phone number to be used for callback. Save and Compile the
change.

4) You can change PHONE2, etc. to nearby phone numbers for testing or

comment out those lines of code. NUMPHONES should equal the number
of active phone numbers.

5) If the thermocouple at DIFF 7 isn’t Type T, change the program to match

your thermocouple type. Save and Compile.

Step 4 – Callin

Step 5 – Callback

6) Connect to CR1000phone and in Connect Screen, send

BASIC_VOICE_2.CR1 to CR1000phone.

7) Disconnect from CR1000phone.

8) Your CR1000 voice station is ready to demonstrate.

1) Using a touch-tone phone, dial the number of the analog phone line

connected to the COM320.

2) You should hear a ring or two, some faint clicking and then the voice

announcements:

CURRENT STATION DATA
PRESS ONE TO HEAR THE BATTERY VOLTAGE
PRESS TWO TO HEAR THE DATALOGGER TEMPERATURE
PRESS THREE TO HEAR THE T C TEMPERATURE
PRESS STAR TO DISCONNECT

3) Pressing 1, 2, 3, or * should produce the result indicated.

1) Grip the end of the thermocouple to raise its temperature above 85 °F

setting an alarm condition.

4

2) In a few seconds you should be able to detect the dial tones as a voice

callback proceeds. The first phone number in the program should ring.
Picking up the phone you should hear:

COM320 Voice Communications Modem

PRESS POUND TO RESET ALARM, PRESS STAR TO DISCONNECT

Pressing the # key you should hear:

C R ONE THOUSAND STATION
PRESS ONE TO HEAR A SENSOR VALUE
PRESS TWO TO HEAR OR TOGGLE PORT
PRESS THREE TO HEAR OR TOGGLE FLAG
PRESS STAR TO DISCONNECT

3) Navigate through the menus to learn the program’s capabilities:

a) Press 2 to access the Ports Menu.

b) Press 1 to read the logic state of Control Port 1.

c) Press # to toggle the logic state of Control Port 1 (C1’s LED should

turn on).

d) Press # again (C1’s LED should turn off).

e) Press * to return to “C R ONE THOUSAND STATION” menu.

f) Press * to hang up.

4) Try hanging up the phone without pressing * (disorderly exit). The

modem should automatically hang up after a few seconds.

5) As you press the keys to navigate around in the menus, you will find that

occasionally you get an unexpected response. Phone connections are
susceptible to noise and signal attenuation. Depending on your particular
phone equipment, the phone lines, and equipment between you and the
voice station, you may experience some of the following:

a) You press * and the voice station hangs up but doesn’t say,

“Goodbye.”

b) A voice callback rings your phone but you pick up to silence.

Certain phones are more of a problem due to low signal levels or
switch bounce.

6) Helpful hints for pressing phone keys to control a voice station:

a) Press a key firmly (but not too long).

b) Allow a second between key presses.

c) Press the same key again if getting an incorrect response.

d) If no response, try pressing the same key again or press the # key to

recover.

e) If unresponsive, try rapidly pressing a series of five * keys to

disconnect station.

f) Worst case, hang up and allow 6 minutes for the voice station to reset

itself.

5

COM320 Voice Communications Modem

3.1 CR1000 Example Program

The BASIC_VOICE_2.CR1 example voice callback/callin program employing
VoiceSetup() can be downloaded from CSI’s website under
Support/Downloads/Program | Examples, COM310 Examples.

' CR1000

' BASIC_VOICE_2.CR1

' Program employs VoiceSetup instruction available in OS CR1000.Std.12 and later

' 1st phone number is called if Diff 7 TC temperature > 85F
' Program continues to call callback phone number list until someone answers and presses # key
‘ resetting alarm.
' Callback phone numbers are in constants in the SlowSequence at the bottom of the program.

' Key Press Functions:
' # resets alarm condition or toggles port/flag
' 1,2,3,4,5,6,7,8 select certain menu items
' * returns one menu level (returns from subroutine) or disconnects
' 0 is not used in this program
' 9 should be avoided since it will trigger an attempt to connect to a modem

' Timeouts (for key presses and for the total on line time) are constants listed below
' and can be adjusted.

Public Value(3)
Alias Value(1) = BatteryV
Alias Value(2) = PTemp
Alias Value(3) = TCValue_F

Const KeyTimeout = 800 ' 8 second timeout waiting for key stroke before hangup
Const SecsOnLine = 360 ' 6 minutes On Line Timeout
Const STAR = 42 ' The * key (STAR)
Const POUND = 35 ' The # key
Const HangupIfKeyTimeout = TRUE ' Will hangup if times out waiting for a key
Const RINGTIME = 20 ' Maximum time, in seconds, allowed for a phone to be picked up
' and # pressed

Public mykey As Long

' **** VOICE CODE executed when DL detects COM320 RING or when DialVoice() succeeds ****

Public CallingOut As Boolean ' Detects whether we are calling out or calling in

' STAR (*) key will be used to return from subroutines and to disconnect if not in a subroutine

VoiceSetup (STAR,STAR,0,SecsOnLine,HangupIfKeyTimeout,CallingOut)

VoiceBeg
If CallingOut Then ' We are calling out triggered by DialVoice()
Call CallOutVoice
Else
Call CallInVoice ' We are calling in
EndIf
EndVoice

' ***** Subroutines *****

' Called when calling in:
Sub CallInVoice
Do
VoiceSpeak ("CURRENT STATION DATA 50MS 50MS", 0)
VoiceSpeak ("PRESS ONE TO HEAR THE BATTERY VOLTAGE 50MS", 0)
VoiceSpeak ("PRESS TWO TO HEAR THE DATALOGGER TEMPERATURE 50MS", 0)
VoiceSpeak ("PRESS THREE TO HEAR THE T C TEMPERATURE 50MS", 0)

6

COM320 Voice Communications Modem

VoiceSpeak ("PRESS STAR TO DISCONNECT", 0)
Select Case VoiceKey(keytimeout)
Case 1
VoiceSpeak ("THE BATTERY VOLTAGE IS" + Value(1) + "VOLTS", 1)
Case 2
VoiceSpeak ("THE REFERENCE IS" + Value(2) + "DEGREES", 1)
Case 3
VoiceSpeak ("THE AIR TEMPERATURE IS" + Value(3) + "DEGREES", 0)
EndSelect
Loop ' Until timeout or STAR
EndSub

' Called when calling out:
Public Alarm As Boolean, ArmAlarm As Boolean, ManualAlarm As Boolean

Sub CallOutVoice
' Dial # reset to reset alarm = 0
Timer(1,Sec,2) ' Start timer
Do
VoiceSpeak("50MS PRESS POUND TO RESET ALARM 50MS PRESS STAR TO DISCONNECT", 0)
mykey = VoiceKey(0)
If Timer(1,Sec,4) >= RINGTIME Then ExitSub ' Max time to await pick up and # press
Loop Until mykey = POUND
' Someone cleared the alarm, let them proceed and do other things
Alarm = False
Do ' Until timeout
VoiceSpeak ("50MS C R ONE THOUSAND STATION 50MS 50MS", 0)
VoiceSpeak ("PRESS ONE TO HEAR A SENSOR VALUE 50MS 50MS", 0)
VoiceSpeak ("PRESS TWO TO HEAR OR TOGGLE PORT 50MS 50MS", 0)
VoiceSpeak ("PRESS STAR TO DISCONNECT 50MS 50MS", 0)
Select Case VoiceKey(KeyTimeout)
Case 1
Call SubKey1
Case 2
Call SubKey2
Case 3
Call SubKey3
EndSelect
Loop ' Until timeout
EndSub

' Monitors a value
Sub SubKey1
Do
VoiceSpeak ("50MS PRESS SENSOR NUMBER 50MS PRESS STAR TO RETURN", 0)
mykey = VoiceKey (KeyTimeout)
If mykey = 1 Then VoiceSpeak ("50MS THE BATTERY VOLTAGE IS" + Value(1) + "VOLTS", 1)
If (mykey = 2) Then VoiceSpeak ("50MS THE REFERENCE IS" + Value(2) + "DEGREES", 1)
If (mykey = 3) Then VoiceSpeak ("50MS THE T C IS" + Value(3) + "DEGREES", 1)
Loop ' Sensor value loop
EndSub

' Read a port and possibly toggle
Sub SubKey2
Do ' Until * or timeout
Dim keybit,port As Long,state
VoiceSpeak("50MS PRESS PORT NUMBER 50MS PRESS STAR TO RETURN", 0)
port = VoiceKey(keyTimeout)
If (port > 0) AND (port <= 8) Then
keybit = 2^(port-1) ' Bit 0..7 is set in keybit. Keybit = 2^(port-1).
Do
ReadIO(state, &b11111111)
VoiceSpeak("50MS C" + port + "IS",0)
If state AND keybit Then
VoiceSpeak("ON",0)
Else
VoiceSpeak("OFF",0)
EndIf

7

COM320 Voice Communications Modem

VoiceSpeak("50MS PRESS POUND TO TOGGLE 50MS PRESS STAR TO RETURN", 0)
If VoiceKey(KeyTimeout) = POUND Then
ReadIO (state,&b11111111)
If state AND keybit Then
state = state AND (NOT keybit)
Else
state = state OR keybit
EndIf
WriteIO(&b11111111,state) ' Toggle control port
EndIf
Loop
EndIf
Loop
EndSub

' Read a flag and possibly toggle
Sub SubKey3
Const NUMBERFLAGS = 8
Public Flags(NUMBERFLAGS)
Do ' Until * or timeout
VoiceSpeak("50MS PRESS FLAG NUMBER 50MS PRESS STAR TO RETURN", 0)
mykey = VoiceKey(keyTimeout)
If (mykey > 0) AND (mykey <= NUMBERFLAGS) Then
Do
VoiceSpeak("50MS FLAG" + mykey + "IS",0)
If Flags(mykey) Then
VoiceSpeak("ON",0)
Else
VoiceSpeak("OFF",0)
EndIf
VoiceSpeak("50MS PRESS POUND TO TOGGLE 50MS PRESS STAR TO RETURN", 0)
If VoiceKey(KeyTimeout) = POUND Then
flags(mykey) = NOT flags(mykey)
Else
ExitDo
EndIf
Loop
EndIf
Loop ' Port loop
EndSub

DataTable (Test,1,-1)
DataInterval (0,0,Sec,10)
Minimum (1,BatteryV,FP2,0,False)
Sample (1,PTemp,FP2)
Sample (1,TCvalue_F,FP2)
EndTable

' <<<<<<<<<<<<<<<<<< MEASUREMENT PROGRAM >>>>>>>>>>>>>>>>>>
BeginProg

Scan (1,Sec,3,0)
Battery (BatteryV)
PanelTemp (PTemp,250)
TCDiff (TCvalue_F,1,mV2_5C,7,TypeT,PTemp,True,0,250,1.8,32)

' Add measurement code here *******************

CallTable Test

NextScan

' <<< VOICE CALLBACK CODE that executes when alarm conditions are met >>>
SlowSequence
' Slow Sequence do loop forever possibly doing alarm call out
Const NUMPHONES = 3 ' 3 phone numbers to try
Const PHONE1 = "1112223333"
Const PHONE2 = "1112224444"

8

COM320 Voice Communications Modem

NOTE

Const PHONE3 = "1112225555"
Dim i,Phones(NUMPHONES) As String
phones(1) = PHONE1
phones(2) = PHONE2
phones(3) = PHONE3

Alarm = FALSE
ArmAlarm = TRUE
Do ' Forever
Delay(1,1,sec)
If (TCvalue_F < 85) Then
ArmAlarm = TRUE
ElseIf (TCvalue_F > 85 AND ArmAlarm) OR ManualAlarm = TRUE Then
ManualAlarm = False
Alarm = TRUE'
Do
For i = 1 To NUMPHONES
' Call these numbers until the alarm is cleared
If Alarm Then DialVoice(phones(i)) ' Calls only if alarm
is set
Next i
If Alarm Then Delay(1,1,min)
Loop Until Alarm = FALSE
ArmAlarm = False
EndIf
Loop

EndProg

3.2 Example Program Description

Bold text indicates a CRBasic instruction. Italic text indicates a
subroutine.

Basic_Voice_2.cr1 has five main sections:

VoiceSetup() – handles auto-disconnect.

Voice Beg / EndVoice – routes execution to callin or callout subroutines.

CallInVoice Subroutine – executes when VoiceBeg detects a callin

CallOutVoice Subroutine – executes when VoiceBeg detects a dial-up. It looks

for a pound (#) key to reset “alarm” variable to false.

SlowSequence – continually looks for the “alarm” variable to be true, which if

it is, it dials a list of phone numbers until “alarm” is no longer true. It
signals VoiceBeg when a callout dial-up is in progress.

3.2.1 VoiceSetup()

The VoiceSetup() instruction is used to control the hang up of the COM320
voice modem. It controls which key is used to exit a subroutine and which is
used to continue to the next VoiceKey() instruction. It also determines how
long the COM320 can be ‘off hook’ before the datalogger automatically hangs
up (auto-disconnect). And it controls whether or not the modem hangs up after
a VoiceKey() instruction timeout. The Callout parameter indicates that the
modem has received a ‘call in’ or has dialed a ‘call out’.

9

COM320 Voice Communications Modem

WARNING

The VoiceSetup() SecsOnLine setting is important as it
hangs up (auto-disconnects) the modem in case
someone hangs up the phone or leaves the phone off­hook without pressing star keys for an orderly “good­bye” disconnect. Test the entire program in this regard
before deployment to avoid possible lengthy off-hook
states disallowing incoming calls, running up a phone
bill and draining the station power supply.

3.2.2 Voice Beg / EndVoice

At call in, the VoiceBeg / EndVoice instruction pair enclose the code that is
executed when the datalogger detects a ring from the COM320.

3.2.3 CallInVoice Subroutine

This subroutine contains the code pointed to by VoiceBeg / EndVoice that
executes 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.

3.2.4 CallOutVoice Subroutine

The CallOutVoice subroutine contains the code that executes 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.

3.2.5 SlowSequence

Contains code that continually executes looking for the Diff 7 thermocouple to
exceed 85 °F forcing a call out (callback) because the “alarm” variable is
“True.” 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 throug the CallOutVoice menus.

4. System Components

4.1 COM320 Modem

Connecting a COM320 voice modem to a datalogger provides all COM220
supported functions plus the following:

10

• Voice retrieval of data (user or datalogger initiated)

• Reading / Toggling of datalogger control ports

• Reading / Toggling of program Flags

The COM320 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 COM320’s communication port is designed to function with

NOTE

NOTE

a Campbell Scientific CS I/O port. This is not an RS-232 port.

Appendix C, CS I/O 9 Pin Serial Port (p. C-1), for the CS I/O

See
port description.

4.2 Surge Suppressor

If the phone company does not provide surge protection at the datalogger site,
you will need to install some. CSI offers surge protectors in two forms:
pn 6362 is a surge protector with environmental enclosure mounting hardware
and pn 4330 is the surge protector with no mounting hardware (see Section 6.5,
Connecting to a Surge Protector

4.3 Voice Capable Dataloggers

The COM320 is compatible with the CR6, CR800, CR850, CR1000, and
CR3000 dataloggers. They must have an operating system ≥ the following:
CR800/CR850 version 7, CR1000 version 16, and CR3000 version 9. It is not
compatible with CR200-series, CR5000, CR7, CR9000X, or any retired
dataloggers.

The COM320 supports such functions as program send, data collection, clock
check, voice callback, voice callin, and data callback.

COM320 Voice Communications Modem

(p. 21)).

The modem also supports concurrent communications. Dataloggers with
multiple peripherals (COM320, RF450, RF401, MD485, NL115, CR1000KD,
and SC32B) can communicate simultaneously via those peripherals.

4.4 Telephone

A touch-tone phone is normally used to call the COM320 modem. A rotary
phone will work if the programmed voice announcements do not require you to
navigate through the COM320’s menu system.

The COM320 must connect to an analog phone line. Some PBX
phone lines are digital and don’t interface to an analog modem
such as the COM320. Of course, any phone may be used to call
in or receive callbacks from the COM320. A touch-tone phone is
necessary for input.

5. Datalogger Voice Programming

The voice code for the datalogger is integrated with the main program. It is
probably advantageous to complete and debug your custom voice program
before adding the measurement code. The example voice callback/callin
program in Section 3.1, CR1000 Example Program
point for your program.

(p. 6), can provide a starting

5.1 Features

The voice instructions listed in Section 5.2, Voice Instructions (p. 13), are
combined with standard CRBasic instructions to create the code needed for

11

COM320 Voice Communications Modem

telephone answering, dialing, voicing word strings, voicing data, receiving key
presses from the remote phone, and acting upon those key presses.

5.1.1 Callback

Callback is the ability of a datalogger/COM320 station to initiate a phone call
‘back’ to a PC running LoggerNet (data mode) or to a telephone (voice mode).
Data callback and voice callback code can be included in the same program.
See the example CR1000 voice callback/callin program in Section 3.1, CR1000
Example Program

5.1.1.1 Data Callback

When specified conditions are met, a station can be programmed to do a data
callback to a PC (with phone modem) running LoggerNet. Data callback
causes LoggerNet to collect datalogger data marked for collection. You must
enable Callback (sometimes in two places) in LoggerNet Setup.

The datalogger program uses a SendVariables() instruction to effect a data
callback (see example data callback program in Section 5.3.1, Example Data
Callback Program

5.1.1.2 Voice Callback

(p. 6), for details.

(p. 15)). No callback ID is used.

The COM320 gives you the ability to do voice callbacks. You can program a
station to call one or more telephone numbers and announce an alarm message
when conditions you specify are met. Using multiple phone numbers increases
the probability that someone will receive the message.

Dataloggers accomplish voice callback with a combination of VoiceSetup(),
VoiceKey(), VoiceSpeak(), and DialVoice() instructions (see example voice
callback/callin program in Section 3.1, CR1000 Example Program

5.1.2 Voice Callin

Callin allows a station to accept a phone call and announce words and data. In
some instances, access to menus may be allowed via key presses. All voice
capable dataloggers support callin. The dataloggers require that callin code be
added to the program (see example voice callback/callin program in Section

3.1, CR1000 Example Program

5.1.3 Voice Storage Data

The COM320 recites data stored in variables. You can also recite data stored
in tables by setting a variable equal to Tablename.Fieldname (fieldname index,
records back). You can get a specific field from the data table (for more
information see Program Access to Data Tables section in the CR1000
manual).

The VoiceSpeak code might look like this:

(p. 6)).

(p. 6)).

12

TC_1 = Public.AirTemp(1,1)

VoiceSpeak ("THE AIR TEMPERATURE WAS" + TC_1 + "DEGREES", 0)

5.2 Voice Instructions

The example voice callback/callin program “BASIC_VOICE_2.CR1” in
Section 3.1, CR1000 Example Program
which to build the features you want.

Patterned after the example program in QuickStart, voice instructions can be
combined in a variety of ways to provide phone access to datalogger data and
for control of datalogger flags/output control ports.

5.2.1 VoiceBeg / EndVoice

This instruction pair contains the code executed when the datalogger detects a
RING signal from the COM320 (a callin). It is placed in the declarations
portion of the program before the BeginProg instruction. The EndVoice
instruction hangs up the modem. VoiceHangup is not required unless you
want to hang up the modem under certain conditions prior to the execution of
the EndVoice instruction.

The VoiceKey() instruction is also used to add a delay before the EndVoice
instruction is executed so that the datalogger will not end the VoiceSpeak()
instruction before the spoken message is completed.

COM320 Voice Communications Modem

(p. 6), provides a starting point from

5.2.2 VoiceSpeak

5.2.3 VoiceKey

The VoiceSpeak() instruction defines the string spoken by the voice modem.
The string is comprised of concatenated words and string variables. To ensure
coded words are valid, CRBasic checks them against the voice.txt file, which
mirrors the word list internal to the COM320. Voice.txt resides in the
“C:\CAMPBELLSCI\LIB\COMPILER” folder.

To use VoiceSpeak(), select it from the instruction list in CRBasic Editor and
click Insert. CRBasic Editor brings up a list of available words. Words can be
inserted in any order. Words are enclosed with quotes and variables are
concatenated with words using a plus sign. For example, "50MS THE
BATTERY VOLTAGE IS" + Value(1) + "VOLTS" is a valid string. The word
“50MS” inserts a 50 millisecond pause during the announcement. 50MS can
be inserted multiple times in series to create a longer pause.

The VoiceKey() instruction is used to add a delay before the EndVoice
instruction is executed so that the datalogger does not end the VoiceSpeak()
command before the announcement is finished.

The VoiceKey() instruction Timeout parameter is used to add a delay (in 0.01
seconds) before EndVoice or Loop is executed. Multiple VoiceKey()
instructions placed before an EndVoice or Loop instruction increase the delay.
The VoiceKey() timeout provides silent time for a user to respond to the
announced menu; however, the user can respond by pressing a key in the
middle of an announcement.

When doing concurrent communications (via multiple communication
peripherals) with your datalogger, it is recommended that the VoiceKey()
timeout be extended to over 5 seconds.

13

COM320 Voice Communications Modem

The VoiceSetup() UseTimeout parameter determines whether or not the
datalogger will hang up the COM320 after the timeout in the VoiceKey()
instruction expires.

5.2.4 VoiceNumber

The VoiceNumber() instruction returns the accumulated touch tone digits that
are received prior to the receipt of a # or * key. The example voice
callback/callin program uses no VoiceNumber instructions; however, this
instruction may be useful for phone transfer of long numbers such as for
passwords, etc.

5.2.5 DialVoice

The DialVoice() instruction is used to define the dialing string for a COM320
voice modem, usually for voice callback. If the DialVoice() instruction is set
equal to a variable, True will be returned if the communication attempt was
successful or False will be returned if it failed. VoiceHangup is used after a
communication attempt to hang up the voice modem. The DialString is the
telephone number and any other codes used to dial the modem. The DialString
can be a variable. A comma in the DialString inserts a 2 second pause.

5.2.6 VoiceHangup

5.2.7 VoiceSetup

The VoiceHangup instruction is used most often with the DialVoice()
instruction to hang up the modem after communication. The VoiceHangup
instruction is not needed if the voice commands are enclosed within the
VoiceBeg / EndVoice instructions.

The VoiceSetup() instruction controls the hang up of the COM320 voice
modem. It also allows you to specify certain handset key functions:

The HangUpKey parameter specifies the key that, when pressed, will
disconnect the COM320.

The ExitSubKey parameter specifies the key that will exit a subroutine if the
datalogger is running one. The ContinueKey parameter specifies the key that
will begin announcing the next VoiceSpeak phrase.

The SecsOnLine parameter specifies the maximum number of seconds that the
COM320 will be off-hook before it is hung up by the datalogger.

The UseTimeout parameter determines whether or not the datalogger will hang
up the COM320 after the timeout in the VoiceKey() instruction expires. If this
parameter is set to True, the timeout will be used. If False, the timeout will not
be used.

The CallOut parameter is a Boolean value that indicates the COM320 mode.
When the value returned in this parameter is True, the datalogger has called
out. When the value is False, the datalogger has received an incoming call.

14

If the same ASCII character is used for HangUpKey and ExitSubKey, the
datalogger will exit a subroutine if it is in one, otherwise, it will hang up the
COM320. When the specified ContinueKey is pressed, the COM320 will skip

the current VoiceSpeak string and move to the next one. If any other key is
pressed, the COM320 will skip to the next group of VoiceSpeak() instructions.

5.2.8 VoicePhrases

The VoicePhrases() instruction is used to provide a list of phrases for a
VoiceSpeak() instruction. This instruction allows the VoiceSpeak()

instruction to output a string from a list of several strings, depending upon
program conditions.

5.3 Data Callback

The COM320 can be put into data mode to accomplish data callback,
instructing LoggerNet to do a collection of datalogger data.

5.3.1 Example Data Callback Program

The following program (downloadable from CSI web site under
Support/Downloads/Program | Examples, COM310 Examples) does data
callbacks to the phone number associated with the DialModem() instruction
whenever the thermocouple temperature exceeds 85 °F. To complete the
system, provide a PC running LoggerNet with a phone modem connected to the
phone line dialed.

COM320 Voice Communications Modem

' CR1000 Series Datalogger

' BASIC_DATA_CLBK_1.CR1

' Program description: Does a DATA CALLBACK via COM320 when DIFF 7 TC temp > 85F

' LoggerNet Map:
' ComPort
' PhoneBase
' PhoneRemote
' PakBusPort
' CR1000 (PakBus Address matches remote DL)

' Use Type T thermocouple or change TCDiff instruction accordingly

Public batt_volt, Result
Public PTemp, TCvalue_F, dummy
Dim DialSuccess

DataTable (TestA,1,1000)
DataInterval (0,0,Sec,10)
Sample (1,PTemp,FP2)
Sample (1,TCvalue_F,FP2)
Sample (1,batt_volt,FP2)
Sample (1,DialSuccess,FP2)
Sample (1,Result,FP2)
EndTable

DataTable (TestB,1,1000)
DataInterval (0,0,Sec,10)
Sample (1,PTemp,IEEE4)
Sample (1,TCvalue_F,IEEE4)
Average (1,TCvalue_F,IEEE4,False)
Sample (1,batt_volt,FP2)
Sample (1,DialSuccess,FP2)
Sample (1,Result,FP2)
EndTable

15

COM320 Voice Communications Modem

DialSequence (4094)
DialSuccess = DialModem (COM320, 9600,"1112223333","") 'Phone number to call
EndDialSequence (DialSuccess)

BeginProg
Scan (30,Sec,0,0)

PanelTemp (PTemp,250)
Battery (Batt_volt)
dummy = 0

TCDiff (TCvalue_F,1,mV2_5C,7,TypeT,PTemp,True ,0,250,1.8,32)

If TCvalue_F > 85 then
SendVariables (Result,COM320,4094,4094,0000,2500,"Public","Callback",dummy,1)
Delay (1,15,Sec) 'Prevents too soon callback
Endif

CallTable TestA
CallTable TestB

NextScan
EndProg

In the above data callback program, the phone number is dialed in the
DialSequence()/EndDialSequence() using the DialModem() instruction. Any
needed re-dials are handled by EndDialSequence(DialSuccess).

LoggerNet recognizes the incoming call as a data callback by the arrival of the
“Public” and “Callback” strings sent by the SendVariables() instruction in the
TableName and FieldName parameters (visible in low-level log for ComPort).
Callback must be enabled in both the station and the ComPort screens.

The 25 second SendVariables() TimeOut (2500 hundredths of a second)
allows the slow phone connection time to build.

5.3.2 Data Callback Instructions

The following instructions are used to program a data callback.

DialSequence/EndDialSequence

The DialSequence()/EndDialSequence() instructions are used to define the
code necessary to route packets to a PakBus datalogger. Any time an
instruction (SendVariables()) in the main program requires that
communication be made with the remote PakBus device identified by the
PakBusAddr parameter (LoggerNet server with PakBus address = 4094), the
DialSequence code for that datalogger will be executed.

DialModem

The DialModem() instruction is used to send a modem dial string out one of
the datalogger's ports. DialModem() can be used within DialSequence() /
EndDialSequence() to specify a communication route to be used for a PakBus
device.

16

The ResponseString is used to specify the response code expected back from
the modem when a connection is made. When a null string is entered (""), the
default is "1"+ CHR(13).

SendVariables

The SendVariables() instruction is used to send value(s) from a variable or
variable array to a data table in a destination PakBus device.

In the example data callback program, the variable “dummy” is sent to
LoggerNet as a signal for LoggerNet to begin collection of the datalogger.

5.4 Answer in Data Mode

In most applications, the COM320 will answer with voice prompts and
phrases. If a phone modem was used in making the call, a series of commas
followed by a “9” would be appended to the dialed phone number to switch the
COM320 into a data mode.

Some applications may require the COM320 to answer in a data mode without
the intervention of sending the “9”. This can be done via datalogger control by
having a “#9” as the last or only word in a VoiceSpeak() instruction. Example:
VoiceSpeak(“#9”,0).

The modem can be forced to hang-up using the word “#HANGUP” as the last
or only word in the VoiceSpeak() instruction.

COM320 Voice Communications Modem

5.5 LoggerNet

By default, the COM320 operates in voice mode, enabling you to call a station
and hear voice announcements or enabling the station to do a callback to you
and announce an alarm. The COM320 also has the ability to function in data
mode. In data mode, the COM320 supports data collection and other standard

LoggerNet functions.

LoggerNet can be configured to call and perform scheduled collections of

storage data or the datalogger can be programmed to do callbacks under
specified conditions, at which time LoggerNet will collect the data.

For scheduled (or manual) collection, change the COM320 to data mode by
including six commas and a “9” in LoggerNet’s dial script in the Setup
Screen’s Hardware Tab for PhoneRemote.

For callback collection, the datalogger DialSequence() instruction changes the
COM320 from default voice mode to data mode.

The commas create a delay so that the “9” is received by the COM320 during
the voice announcement. When the COM320 detects the “9”, it disables voice
communications and enables data mode for the remainder of that connection.

For example, in LoggerNet, if the phone number is "555-4321" then in order to
call the COM320 and enable data mode, the dial script becomes:

"555-4321,,,,,,9"

In LoggerNet, a comma represents a 2 second delay. You may need to adjust
the number of commas so that the “9” occurs during the voice announcement,
depending upon the length of time required to establish the connection with the
modem. The COM320 must be speaking when the “9” is sent.

17

COM320 Voice Communications Modem

NOTE

14-AWG Ground Wire

6. Hardware Installation

6.1 Site Requirements

Connection to telephone company provided COIN service
(Central Office Implemented systems) is prohibited. Connection
to party line service is subject to state tariffs.

The COM320 is compatible with standard (analog) telephone lines. It connects
to the telephone line by means of a USOC RJ11 jack (standard modular
telephone jack). Connect the cable from the telephone RJ11 jack to the modem
as shown in FIGURE 6-1.

(green with yellow stripe)

FIGURE 6-1. COM320 Hardware Connection Using Standard RJ11

Phone Jack

18

COM320 Voice Communications Modem

WARNING

14-AWG Ground Wire

(green with yellow stripe)

FIGURE 6-2. COM320 / CR1000 Using Surge Protection Device

(where there’s no available Standard RJ11 Connection)

6.2 Powering the COM320 Modem

The datalogger provides 12 Vdc on the CS I/O connector’s pin 8 for powering
peripherals such as the COM320.

6.3 Grounding the COM320 System

Connect the 14 AWG grounding wire (green with yellow stripe, provided with
the COM320) to the GND terminal on the COM320 and to the station
enclosure’s earth ground connection. The COM320 and datalogger must be
connected directly to a high quality earth ground. Read the datalogger manual
section on GROUNDING for details on creating such an earth ground.

A quality EARTH GROUND connection to the COM320
and datalogger maximizes protection against electro­static discharge! Follow carefully the EARTH GROUND
scheme in
gaps on the phone lines; however, they will be
ineffective without quality earth grounding.

FIGURE 6-3. The COM320 employs spark

19

COM320 Voice Communications Modem

CAUTION

NOTE

14-AWG Ground Wire

(green with yellow stripe)

FIGURE 6-3. COM320 Grounding and Alternate 12Vdc Power

6.4 Telephone Service

Telephone companies occasionally make changes in their equipment,
operations, or procedures. If you have any questions about your telephone line,
such as how many pieces of equipment you can connect to it, contact the
telephone company. If the telephone company requests information from you
concerning the equipment connected to the telephone line, the COM320 label
shows its FCC registration number and ringer equivalence number (REN).
COM320 information pertaining to the FCC and Industry Canada is available
in Section 2, Specifications

Remove any malfunctioning telephone equipment
immediately to prevent damage to the telephone network.

If the telephone company notices a problem from their end, they may
temporarily discontinue service. They should notify you in advance of
disconnection and give you opportunity to correct the problem. If not feasible,
they should notify you as soon as possible.

If the local phone company does not provide phone-line surge
protection, a Campbell Scientific surge suppressor should be used.
Refer to Section
more information.

(p. 2), and Appendix A, IC Information (p. A-1).

6.5, Connecting to a Surge Protector (p. 21), for

20

COM320 Voice Communications Modem

NOTE

CAUTION

BURIED PHONE CABLE

6.5 Connecting to a Surge Protector

Campbell Scientific offers two surge protectors (pn 4330 and pn 6362). The
4330 and 6362 are essentially the same, except the 6362 has hardware for
mounting to an enclosure backplate.

The 4330 is also known as the 2374-01.

The 4330 and 6362 have a protector element for each line that consists of a
heavy-duty-rated, two-element gas tube, an external backup gap assembly, and
a switch-grade shorting mechanism. The gas tubes (tip and ring) are sealed in
a fire-resistant plastic body. DC Breakdown @ 100 V/sec is 300 to 500 volts;
DC extinguishing @ 52 V, 135 V, and 150 V is less than 150 milliseconds.

FIGURE 6-4 and FIGURE 6-5 show the wiring for connecting the surge
suppressor. Color coding of wires may vary. The important consideration is to
follow TIP all the way through and RING all the way through. While no
damage usually occurs from crossing wires, the phone line will not work until
it is wired correctly.

Phone wires are live, typically with low voltage (30 to 50
Vdc). While not harmful in most situations, Campbell
Scientific recommends installing the surge protector in dry
weather only by qualified technicians.

FIGURE 6-4. Top View of Surge Suppressor Wiring

21

COM320 Voice Communications Modem

FIGURE 6-5. Side View of Surge Suppressor Wiring

7. Troubleshooting COM320 Voice Systems

Following are some possible reasons for your COM320 system not working or
not working properly.

7.1 No Communications

Voice Mode — No voice announcements when you call the station

• The COM320 is connected to a digital rather than an analog phone line.

• The COM320 configuration was changed from its default factory settings

(see Appendix B, Updating and Configuring the COM320

Data Mode — Can’t connect to the station with LoggerNet software.

• No commas and/or “9” added to the dial string in LoggerNet to

temporarily put the COM320 into data mode.

• The “9” is being dialed before the COM320 ‘picks up’ and voices the

announcement (not enough commas).

• No phone number in the LoggerNet dial string.

• COM320 is connected to a digital rather than an analog phone line.

(p. B-1)).

22

• LoggerNet Setup configured for the wrong PC modem.

• LoggerNet configured for a baud rate the station cannot handle (try 9600).

• COM320 configuration was changed from its default factory settings

(see Appendix B, Updating and Configuring the COM320

(p. B-1)).

7.2 Communications Problems

Voice Mode

1) Can’t get beyond the initial voice announcement

a) The security code was not received. Try pressing # again, then xxx#

again (where xxx = modem security code).

2) Pressing handset keys sometimes fails to produce the correct response.

a) Handset keys not being pressed long enough.

b) Key presses (especially # #) were not spaced far enough apart and the

station is waiting for the last key (#).

c) Phone line introducing excessive noise or signal attenuation.

d) Handset introducing excessive noise or producing too low signal

levels.

3) Station has become unresponsive (try the following in the order given).

COM320 Voice Communications Modem

a) Press # which will usually announce the current menu again;

b) Press five or more * (star) keys in rapid succession to recover;

c) Allow station to time out and disconnect (usually 15 – 40 seconds,

rarely 5 minutes), then call again.

4) Volume levels vary.

This is normal due to the PCM voice encoding compression scheme.
Sometimes the modem will negotiate a higher volume for a given
connection.

23

COM320 Voice Communications Modem

24

NOTE

“CAUTION

Appendix A. IC Information

Industry Canada (IC) was formerly known as DOC.

CP-01, Issue 8, Part I Section 14.1

“NOTICE: The Industry Canada label identifies certified equipment. This
certification means that the equipment meets certain telecommunications
network protective, operational and safety requirements as prescribed in the
appropriate Terminal Equipment Technical Requirements document(s). The
Department does not guarantee the equipment will operate to the user’s
satisfaction.

“Before installing this equipment, users should ensure that it is permissible to
be connected to the facilities of the local telecommunications company. The
equipment must also be installed using an acceptable method of connection.
The customer should be aware that compliance with the above conditions may
not prevent degradation of service in some situations.

“Repairs to certified equipment should be coordinated by a representative
designated by the supplier. Any repairs or alterations made by the user to this
equipment, or equipment malfunctions, may give the telecommunications
company cause to request the user to disconnect the equipment.

“Users should ensure for their own protection that the electrical ground
connections of the power utility, telephone lines and internal metallic water
pipe system, if present, are connected together. This precaution may be
particularly important in rural areas.

Users should not attempt to make such connections
themselves, but should contact the appropriate electric
inspection authority, or electrician, as appropriate.”

CP-01, Issue 8, Part I Section 14.2

“NOTICE: The Ringer Equivalence Number (REN) assigned to each terminal
device provides an indication of the maximum number of terminals allowed to
be connected to a telephone interface. The termination on an interface may
consist of any combination of devices subject only to the requirement that the
sum of the Ringer Equivalence Numbers of all the devices does not exceed 5.”

A-1

NOTE

Appendix B. Updating and Configuring the COM320

The COM320 has an internal USB port for connecting the mode to a computer.
Connection to a computer is required to install the drivers, download an
operating system, change COM320 settings, and retrieve a vocabulary list.

The COM320’s case must be removed to access the USB port (see
Appendix B.1, Removing the Cover to Access the USB Port (p. B-1)).

B.1 Removing the Cover to Access the USB Port

1) Use a Philips screwdriver to remove the five screws on the sides of the

COM320.

2) Lift off the case.

B.2 COM320 USB Communications Cable

The COM320 uses a USB Type-A Male to Type-B Male cable (pn 17648) for
updating firmware, vocabulary and configuration. This is a common USB
cable used with USB connected printers and scanners.

B.3 COM320 Driver Installation

If this is the first time a COM320 has been plugged into your computer, it will
be necessary to install the drivers to enable communication with the COM320:

1) Remove the cover of the COM320 to access the USB port (see Appendix

B.1, Removing the Cover to Access the USB Port

2) Connect a USB cable between the COM320's USB port and one of your

computer's USB ports.

3) Power the modem by connecting the modem’s green 12V and G terminals

to a 12 Vdc power source or by connecting the modem to the CS I/O port
of a datalogger.

4) Open the Device Configuration Utility. Under Device Type, select Phone

Modem | COM320. Click the install the USB driver for the COM320
link and follow the prompts.

(p. B-1)).

B-1

Appendix B. Updating and Configuring the COM320

CAUTION

CAUTION

B.4 Downloading a New Operating System to the

COM320

To download a new operating system to the COM320, follow these steps:

1) You must remove the top cover of the modem to expose the USB port.

This is done by first removing the five Phillips head screws on the sides of
the COM320.

2) You must also provide a power source (+12Vdc) for the modem. This can

be done by applying power on the green 12Vand G terminals on the device
or plugging the modem into the CS I/O port of a datalogger.

3) Connect the COM320 USB port to one of the USB ports on your computer

and wait for the computer operating system to load its device drivers. If
this is the first time a COM320 has been plugged into your computer, you
may need to install the device driver for the COM320. See Appendix B.3,
COM320 Driver Installation

4) Run Device Configuration Utility ver 1.12 or newer.

(p. B-1), for device driver installation.

5) Select COM320 from the Device Configuration Utility menu and select the

Send OS tab at the top (FIGURE B-1).

6) Once the device drivers have been successfully loaded, you should be able

to see the serial port name allocated for the modem in the PC Serial Port
field when you click on the browse button.

7) Click the Start button.

8) In the resulting file open dialog box, select the file that should be sent as

the modem’s operating system.

Do not attempt to load any operating system other than that
designed for the COM320 modem.

9) The program should now send the operating system to the modem.

Interrupting this process may corrupt the modem operating
system.

B-2

Appendix B. Updating and Configuring the COM320

FIGURE B-1. Send OS Screen in Device Configuration Utility

B.5 Changing COM320 Settings

There are two items that can be configured in the COM320: the number of
rings before the COM320 answers and the country code. Use the Device
Configuration Utility ver 1.12 or newer and a USB Type-A male to Type-B
male cable to change these settings.

1) You must remove the top cover of the modem to expose the USB port.

This is done by first removing the five Phillips head screws on the sides of
the COM320.

2) You must also provide a power source (+12Vdc) for the modem. This can

be done by applying power on the green 12Vand G terminals on the device
or plugging the modem into the CS I/O port of a datalogger.

3) Connect the COM320 USB port to one of the USB ports on your computer

and wait for the computer operating system to load its device drivers. If
this is the first time a COM320 has been plugged into your computer, you
may need to install the device driver for the COM320. See Appendix B.3,
COM320 Driver Installation

4) Run Device Configuration Utility ver 1.12 or newer.

(p. B-1), for device driver installation.

5) Select COM320 from the Device Configuration Utility menu and select the

COM320 tab at the top (FIGURE B-2).

6) Once the device drivers have been successfully loaded, you should be able

to see the serial port name allocated for the modem in the PC Serial Port
field when you click on the browse button.

B-3

Appendix B. Updating and Configuring the COM320

FIGURE B-2. Device Configuration Utility Screen

7) Click on the Connect button to connect to the COM320 and enter the

settings editor (FIGURE B-3).

B-4

FIGURE B-3. Device Configuration Utility Settings Editor

Appendix B. Updating and Configuring the COM320

CAUTION

When doing datalogger to datalogger communications with
the COM320, if more than six rings are specified, the
datalogger may time out before the modem answers;
communication will never be established! Be sure to try the
set up locally before installing at a remote location.

B.6 Retrieving a Vocabulary List

The COM320’s current vocabulary list can be retrieved from the modem. You
will need a USB cable, the Device Configuration Utility or terminal program, a
+12 volt power supply, and the COM320 drivers installed on your computer as
described in the section entitled COM320 driver installation instructions.

With the above requirements taken care of do the following:

1) Connect the USB cable between the computer and the COM320.

2) Apply +12 volts to the modem via the CS I/O port from a datalogger or the

+12 volt and ground terminals.

3) Launch the Device Configuration Utility and select device type Unknown,

the correct PC serial port connected to the COM320, a baud rate of 9600
and press the connect button.

4) By pressing the “V” key you should see a list of words scroll by in the

Device Configuration Utility terminal window.

If you want to save this list to a file, select the Start Export button and enter a
name for the file it will create. Now press the “V” key and wait until the words
stop scrolling and press the End Export button to create the file. This new file
is a complete vocabulary list from the COM320 voice modem.

Start with the CRBasic Editor version 3.1 you can select multiple vocabulary
files from the VoiceSpeak vocabulary window if the file name begins with
voice and ends with .txt (for example, VoiceTestWords.txt). The file needs to
be located in the directory where the CRBasic Editor looks for its compilers
(default location is C:\Campbellsci\Lib\Compilers).

B-5

Appendix B. Updating and Configuring the COM320

B-6

CS I/O

NOTE

Appendix C. CS I/O 9 Pin Serial Port

The COM320’s CS I/O port is not a standard RS-232 connection.

Pin Description

The COM320 modem connects to the datalogger using an SC12 cable
connected to the datalogger’s CS I/O port. The COM320’s connector
configuration is shown in FIGURE C-1. TABLE C-1 shows the I/O pin
configuration, and gives a brief description of the function of each pin.

FIGURE C-1. COM320’s Male 9 Pin Connector

C-1

Appendix C. CS I/O 9 Pin Serial Port

TABLE C-1. Pin Description

9

ABR = Abbreviation for the function name.

PIN = Pin number.

O = Signal Out of the datalogger to a peripheral.

I = Signal Into the datalogger from a peripheral.

PIN ABR I/O Description

1 5V I 5 Vdc supply (not used for COM320).

2 SG Signal Ground: Provides a power return for pin 1

(5V), and is used as a reference for voltage levels.

3 RING O Ring: Raised by the modem to put the datalogger

in the telecommunications mode.

4 RXD O Receive Data: Serial data transmitted by the

modem are transmitted on pin 4.

5 ME I Modem Enable: A logic high internally switches

power to the modem. A logic low internally
powers down the modem.

6 SDE I Synchronous Device Enable: A logic high

disables communication with the modem, without
removing power or changing the modem’s mode.

8 TE I +12 Vdc power supply.

TXD

Transmit Data: Serial data are transmitted from

I

the datalogger to the modem on pin 9; logic low
marking (0V) logic high spacing (5V) standard
asynchronous ASCII, 8 data bits, no parity, 1 start
bit, 1 stop bit, 300, 1200, 9600, 76,800 baud (user
selectable).

C-2

Appendix D. COM320 Word List

D.1 COM320 Word List - Alphabetical Order

500MS
50MS
A
A-M
ABOVE
ACCUMULATE
ACKNOWLEDGE
ACRE
ADDITION
ADDITIONAL
AGAIN
AGO
AIR
ALARM
ALL
AMMONIUM
AND
APPROACH
ARE
AREA
AT
AUTOMATION
AVAILABLE
AVERAGE
B
BACK-UP
BAROMETRIC
BARS
BATTERY
BAY
BE
BEAVER
BEDS
BEEN
BEHIND
BELOW
BIG
BILLION
BLAST
BOILER
BUILDING
BY
C
C-O
CALCIUM
CALIBRATE
CALL
CALLBACK
CALLS
CAMPBELL

CAN
CANAL
CELSIUS
CEMENT
CENTI
CENTRAL
CHECK
CHILL
CHILLER
CHLORIDE
CHLORINE
CLOSED
CODE
COMPUTED
CONDITIONS
CONDUCTIVITY
CONTACT
CORRECTED
CREEK
CROSSING
CUBIC
CURRENT
CYCLES
D
D-O
DAM
DATA
DATALOGGER
DAY
DAYS
DEGREES
DELTA
DEPTH
DEVIATION
DEW
DING
DIRECTION
DISCHARGE
DISCONNECT
DISTRICT
DIVERSION
DOCK
DOOR
DOWN
DRAW
DURING
E
E-T-O
E08'S
EAST

EASTERN
EFFLUENT
EIGHT
EIGHTEEN
EIGHTY
ELECTRON
ELEVATION
ELEVEN
EMPTIED
ENGINE
ENTER
EPROM
EQUAL
ERROR
EVENT
EXCEEDS
EXTERNAL
F
FAHRENHEIT
FAILED
FAILURE
FALL
FALLING
FEET
FIFTEEN
FIFTY
FIRST
FISH
FIVE
FLAG
FLAGS
FLOW
FLUORIDE
FOLLOWING
FORTY
FOUR
FOURTEEN
FREEZER
FREQUENCY
FRIDAY
FROM
FUEL
G
GALLONS
GAS
GATE
GAUGE
GENERATOR
GOING
GOOD

D-1

Appendix D. COM320 Word List

GOODBYE
GRADIENT
GRAM
GRASS
GROUND
H
H-2-S
HAD
HARDNESS
HAS
HASH
HAVE
HEAD
HEAR
HEAT
HELLO
HERTZ
HIGH
HOLD
HOT
HOUR
HOURS
HUMIDITY
HUNDRED
HYDROLOGIC
I
IN
INCHES
INDEX
INF
ING
INPUT
INTAKE
INTERNAL
INTRUDER
IRRADIANT
IRRIGATION
IS
IT
J
K
KEY
KILO
KILOBYTES
KNOTS
L
LAKE
LAST
LAYER
LEVEL
LINE
LISTEN
LISTENING
LITER
LOAD
LOCATED

LOCATION
LOCATIONS
LOGAN
LOW
M
M-R-P
MANAGEMENT
MAXIMUM
MEMORY
MENDON
MENU
MERCURY
MESSAGE
METER
METERS
MICRO
MID
MID-MOUNTAIN
MIDNIGHT
MILES
MILLI
MILLION
MINIMUM
MINUS
MINUTE
MINUTES
MODEM
MOISTURE
MONDAY
MONITOR
MONTH
MOUNT
MOUNTAIN
MULTIPLIER
N
N-T-U
NAN
NEEDS
NETWORK
NEW
NEXT
NINE
NINETEEN
NINETY
NITRATE
NITROGEN
NO
NOON
NORTH
NOT
NUMBER
O
OF
OFF
OFFSET
OK

ON
ONE
OPEN
OR
OUT
OVERFLOW
OVERRUNS
OZONE
P
P-H
P-M
P-S-I
PACIFIC
PARAMETER
PARTS
PAST
PEAK
PENDING
PER
PERCENT
PHONE
PLANT
PLEASE
POINT
POND
POOL
PORT
PORTS
POTASSIUM
POUND
POWDER
POWER
PRECIPITATION
PREHEAT
PRESS
PRESSURE
PREVIOUS
PROBE
PRODUCT
PROGRAM
PROGRESS
PUMP
Q
QUALITY
QUIT
R
R-P-M
RACE
RADIAL
RADIATION
RAIN
RANGE
RATE
REACHED
READING
RECEIVED

D-2

Appendix D. COM320 Word List

REFERENCE
RELATIVE
RESERVOIR
RESET
RESIDUAL
RETURN
REVISION
RISING
RIVER
ROAD
ROOM
RUN
RUNOFF
S
S-O-2
SAMPLE
SATURDAY
SCIENTIFIC
SECOND
SECONDS
SECURITY
SEDIMENT
SELECTED
SELECTION
SENSOR
SENSORS
SET
SEVEN
SEVENTEEN
SEVENTY
SHAFT
SIEMENS
SIGNATURE
SINCE
SITE
SIX
SIXTEEN
SIXTY
SKIING
SMOG
SNOW
SODIUM
SOIL
SOLAR
SONAR
SOUTH
SPEED
SPILL
SQUARED
STAGE
STANDARD
STAR
STATES
STATION
STATUS
STORM

STREAM
STREAMBED
SUMMIT
SUMP
SUNBURN
SUNDAY
SURFACE
SURFACTANCE
SYSTEM
T
TABLE
TAIL
TANK
TEMPERATURE
TEN
TESTING
THANK
THAT
THE
THERE
THIRTEEN
THIRTY
THIS
THOUSAND
THREE
THRESHOLD
THRU
THURSDAY
TIME
TING
TO
TODAY
TODAYS
TOGGLE
TOTAL
TRIGGERED
TUESDAY
TURBIDITY
TWELVE
TWENTY
TWO
U
ULTRAVIOLET
UNITS
UP
V
V-O-C
VALUE
VELOCITY
VERSION
VERTICAL
VIA
VOLTAGE
VOLTS
W
WARNING

WAS
WATER
WATTS
WE
WEATHER
WEDNESDAY
WELCOME
WELL
WEST
WHAT
WIND
WITH
X
Y
YEAR
YESTERDAY
YOU
YOUR
Z
ZERO

D-3

Appendix D. COM320 Word List

D-4

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