Section 2 Aquatrend ® Interface Network; Network Description - Hach AquaTrend 51200 Instrument Manual

Section 2

2.1 Network Description

Figure 6 Single-Sensor AquaTrend Interface Network
DISPLAY EXIT
ENTER
MENU
Spare -
open for
expansion
AC Power
RS232 Computer or Printer Interface
51350-18 Aquatrend Interface Network.fm
Aquatrend
This section describes requirements and options for setting up the AquaTrend
Interface Network System. A "network" is the connection of one or more
devices (of which at least one is a sensor) to a Master AquaTrend Interface.
This Master AquaTrend Interface serves as the network control panel.
Devices can include Signal Output Modules (SOM), Digital Display Modules
(DDM), Serial I/O Modules (SIO), Remote AquaTrend Interfaces and
Portable AquaTrend Interfaces.
Figure 6 shows an example of a single-sensor AquaTrend Interface Network
System. An example of a multi-sensor system is shown in
Power Supply 12V DC
Network Connection Module
Relays
4-20mA Outputs
Each sensor (i.e., the 1720D Turbidimeter) manual provides instructions for
setup of the single-sensor network. Each of the other device manuals,
(AquaTrend/SOM, AquaTrend Interface, Digital Display Module, Serial I/O
Module, Signal Input Module and Signal Output Module) provides setup
instructions for their components. Section 2.3 describes the maximum
number of devices that can be managed by one Master AquaTrend Interface
on a system.
®
Interface Network
115 / 230 VAC
Power In
Customer Supplied
ON/OFF Switch
ON
OFF
DIGITAL
DISPLAY MODULE
1720D
Figure 7.
CONFIGURE
DIS
PL AY
ME NU
EX IT
EN TE
R
Either the DDM or the
Portable AquaTrend
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®
Aquatrend Interface Network