WIRInG foR aDDITIonal boaRD fUnCTIons
8
3. NEtWOrkING
2.4.6. Optional Purposes At Grundfos Digital Pressure Sensor
The ‘grundfos Pressure’ signals can be used for two alternate
purposes: measuring an electric circuit with a current
transformer (CT) such as a main supply and electric tank
element, or monitoring solar radiation with a pyranometer. Two
signals can be read simultaneously.
MODBUS INPUt
2.4.7. Modbus connection
The DDT Pro now has the ability to communicate with Modbus
protocol to a Building Automated System. Heliodyne also offers
bridge translators to map out Modbus communication to almost any
well known machine language. Please contact your local Heliodyne
representative for details on this feature.
3.0. Network Overview
The Heliodyne controllers use internet protocol (IP) to display information on a web page. They use two types of physical connection for
communication with devices:
•
Ethernet
[Cat 5 cable connection - DLTA 000 001]
•
Wi-Fi
[802.11 b/g wireless signal - DLTA 000 002]
The controllers use Ad-Hoc networking, or computer to computer direct connect, for initial controller setup and operational use. The
Pro can optionally be installed on a local area network, or Infrastructure, for ease of viewing data and communication with the Heliodyne
Monitoring Servers.
All settings are behind a log-in. The CASE Sensitive defaults are:
User Name:
Admin
Password:
caution
To begin the configuration setup of the Delta-T Pro, supply the unit with power, and prepare the computer, PDA or device for connection
with the controller’s default ad-hoc network:
•
Disconnect from any other Ethernet, WiFi, modem, or network connection and close all open browser windows.
•
For laptops connecting to Ethernet controls, ensure the power cable is connected as many computers disable the Ethernet port to con-
serve battery power.
•
For Windows Vista users, enable file sharing.
•
Make sure Javascript is enabled.
FIg. 2.4.6
FIg. 2.4.7
grundfos
flow sensor
grundfos pressure, or
pyrometer, or current
transformer (CT) sensor
+5VDC
gND
S1
S2
1
4
2
3
