6 phoneremote, Phoneremote -24 – Campbell Scientific LoggerNet Datalogger Support Software User Manual

Page 80

Advertising
background image

Section 4. Setting up Datalogger Networks

configurations. When the Edit Modem Database button is selected, the reset

and initialization strings for the selected modem are displayed. You can

change these settings or add a custom modem to the list. If you change the

settings for one of the standard modems you will have to save it to a new name

to use it. The only modems that can be deleted from the list are modems that

have been added by the user.

Modem Type – Use the drop down list box to select the type of modem that is

attached to the server computer’s communications port. In most instances, the

<default modem> should work.

Advanced
Extra Response Time – In this field, specify the additional time that the

LoggerNet server should delay before terminating the communications link if

there is no response from the phone modem. Additional time may be needed in

instances where the communications link is noisy or network traffic is heavy.

Delay Hangup – The amount of time, in seconds and milliseconds, that

LoggerNet should delay before hanging up the link to the device. If a new

command to the device is issued before the delay has expired, communication

will not be terminated.

LoggerNet waits a certain amount of time for a response from each

device in a communications path. The extra response times

defined for the communications link are cumulative. Therefore,

the amount of time spent waiting for a device to respond is the

sum of all Extra Response Times defined, plus the default

response time for each device in the link. Add the minimum time

necessary since very long response times can delay other

scheduled events while waiting for a device that is not responding.

4.2.4.6 PhoneRemote

The Hardware tab of the remote phone modem is used to set up the dialing

string for the attached remote device. It has the following controls:

Communications Enabled – Before communication can take place, all

devices in the chain must have the Communications Enabled box checked.

When this box is selected, communication to the remote phone modem is

enabled.

Phone Number/Delay Field – This field is used to enter the telephone

numbers or dialing strings for the remote modem. To add a number to the list

simply click the <add phone number> field and type in the number. Spaces,

dashes and parentheses are usually ignored by the modem. To remove or

change a number, highlight the number and delete or click the number and use

backspace.

Multiple phone numbers are allowed to accommodate entry of access codes,

credit card numbers, or other numbers that may be needed for communication

to the remote modem and its attached device. As an entry is created a new line

is added for additional entries as needed. The first phone number will be

dialed following the specified delay. The next number will then be dialed after

NOTE

4-24

Advertising