Campbell LoggerNet, Инструкция по эксплуатации

Страница: 80 / 580

Section 4. Setting up Datalogger Networks
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.
NOTE
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
the delay specified. The amount of time to delay is in milliseconds so a 5-
second delay would be entered as 5000 milliseconds.
4-24