SC200 Handbook
90
Copyright © 2007-2011 Eaton Corporation. All Rights Reserved.
IPN 997-00012-50H November 2011
PSTN Modem Communications
Connections
The PC modem may be external to the PC (as shown) or internal.
SC200 system controller
PC/laptop with PowerManagerII and/or DCTools.
RS232 modem cable (straight-thru). If access to
XS1 is restricted use a DB9 ribbon cable extension
(Farnell part number 869-6411).
PSTN modem
PSTN network.
SC200 Setup
Not all modems are suitable. If your modem does not operate correctly check the modem setup
string. Contact your Eaton dc product supplier or Eaton for further assistance. See Worldwide
Support on page
► To enable modem communications
1
Connect to the SC200 with
DCTools/Web
.
2
Go to
Communications
.
3
Click on
+
to expand
Serial
. Configure the following settings:
Enable Modem:
Enabled
Modem Power Reset:
Optional. If this is enabled, then the SC200 will attempt
to reset a non-operating modem by turning its power
supply off and on using digital output 2.
Modem Set Up String:
The string sent to the modem on reset.
The modem AT command should not be included as it
is automatically sent. The Auto-Answer Rings
parameter is also sent, so it does not need to be
included here. For complete details of appropriate
commands, consult your modem documentation.
Modem Auto Answer Rings: Number of rings before an incoming call is answered.
Setting this parameter to zero disables incoming calls
(the modem can still be used for alarm reporting).
4
If the SC200 is to report alarms to PowerManagerII then click on + to expand
PowerManager Callback. Configure the following settings:
Alarm Report:
Select the type of event(s) that will initiate the dial-out
process.
Report Maximum Retries:
Set to the number of times the SC200 is to try to connect
with a remote modem, if the first attempt fails.
