14
4.3.2 Remote Modem Access: Shoulder Tap
Equipment Required
An Internet-ready computer with the following capabilities: 100 MHz minimum processor speed,
40 MB minimum RAM, Windows operating system, and Windows Internet Explorer version 5.0 or
higher web browser software.
An active analog phone line, direct to the process monitor (without a PBX system in between) must
be connected to the modem of the WebAlert.
A dialup account must be established for the WebAlert with an Internet Service Provider (ISP). The
connection will only be as reliable as the ISP. You should avoid small mom-and-pop ISPs unless
you know that they can provide reliable connection to the Internet. Contact Walchem for
recommendations.
Features Required in the WebAlert
The WebAlert must have the modem option installed in order to communicate via Shoulder Tap.
Utilities you need to set up on your computer
There are no special drivers, adapters or other software components required on the PC.
Parameters that need to be programmed into the WebAlert
Prior to attempting a Shoulder Tap connection, the following information needs to be entered into
the Communications page of the WebAlert, either via a direct serial connection or direct modem
connection (Direct Tap). Some of this information needs to be provided to you by the Internet
Service Provider (ISP) that the WebAlert will use to access the Internet.
The unit’s phone number.
The local access phone number for the ISP. More than one access number may be entered.
The ISP Username that the unit will use to connect to the ISP.
The ISP Password that the unit will use to connect to the ISP.
Steps Required to Establish a Connection
Connect your PC to the Internet.
Enter the address http://w700.walchem.com/walchem/frontdoor.asp.
Enter the Connection Utility Username and Password and click the Submit button.
Enter the phone number of the unit and click the Connect button. After a few minutes, the sign-on
screen for the WebAlert will come up.
The sign-on screen of the WebAlert will come up. Type the User Name and Password (Access
Code) in the text boxes and click the Submit button. The default user name is "webalert" and the
default passwords are "2001" for full access, "2002" for calibration only, and "2003" for read only.
These defaults can and should be changed in the Access Code page.
ShoulderTap
Connection
Utility
Http://w700.walchem.com/walchem
Phone
line
ISP
Embedded
Web Server
Содержание WebAlert WA500
Страница 9: ...6 Figure 1 Identification of Parts...
Страница 10: ...7 Figure 2 Wiring Diagram for AC Power Input...
Страница 11: ...8 Figure 3 Wiring Diagram for Digital Inputs and Outputs...
Страница 12: ...9 Figure 4 Wiring Diagram for Analog Inputs DEVICES POWERED BY THE WEBALERT...
Страница 13: ...10 Figure 5 Wiring Diagram for USB Devices and Communications...
Страница 14: ...11 4 0 FUNCTION OVERVIEW 4 1 Front Panel Alarm LED Status LED...