WAGO I/O System 750
Device Description 15
750-482/000-001 2AI 4-20mA HART NAMUR NE43
Manual
Version 1.0.2
3
Device Description
The Analog Input Module 750-482/000-001 (2AI 4-20mA HART NAMUR NE43)
processes analog signals with the norm value of 4 mA ... 20 mA.
The I/O module also enables digital communication to be carried out with HART-
enabled field devices (Highway Addressable Remote Transducer).
The I/O module has 2 input channels and enables field signals to be received via
the +HART 1 and
−
HART 1 and +HART 2 and
−
HART 2 connections. Typically,
the current values are measured at these connections, but at the same time the
HART signals can also be coupled and decoupled.
The channels have a common reference potential and a shield connection.
The shield connection is fed directly to the carrier rail and contact is made
automatically by snapping the module onto the rail.
The channels are not electrically isolated from one another.
Dabei
Two-conductor transducers, which do not have their own power supply, such as
adjustable resistances, pressure, flow and level meters, can be connected
directly.
The transducers are directly supplied from the I/O module.
In order to connect the 0 V line when using 3-conductor transducers, a 75x-604
or –614 Field Side Connection Module must be plugged in next to the HART I/O
module, providing the 0 V potential for the field level.
The input signal is electrically isolated and is transmitted with a resolution of
12 bits.
Simple parameterization of the HART I/O module for 6 different operating modes
enables the I/O module to be used optimally for 3 different types of application.
Table 3: Types of Application
Types of Application for the HART I/O Module
1
Programmable fieldbus controllers can communicate with HART devices
from IEC61131-3 programs using the “WagoLibHART_0x.lib” PLC library.
2
Up to 4 HART dynamic variables (PV, SV, TV, QV) can be incorporated in
the cyclic process image of the 750-333 PROFIBUS Coupler or 750-833
PROFIBUS Controller by parameterization via GSD (device master data) or
WAGO-I/O-
CHECK
.
3
When using the 750-333 PROFIBUS DP/V1 Coupler or 750-833
PROFIBUS Controller and the 759-360 PROFIBUS/HART Gateway DTM,
FDT tool routing is possible to the DTM of the connected HART device.
The operating status of the channels is indicated by a green status LED per
channel.
A red error LED per channel indicates a wire break, a short circuit or that the
signal is outside the measuring range.
