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16
Device Description
3
Device Description
The Analog Input Module 753-482 (2AI 4-20mA 12 Bit S.E. HART) 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 on an alternating voltage
basis.
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 4 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
FDT tool routing to the DTM of the connected HART device is possible with
a number of WAGO ETHERNET controllers and the 759-359
ModbusTCP/HART Gateway.
3
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 2.
4
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.
Manual
Version 1.2.0
WAGO I/O System 750
753-482 2AI 4-20mA 12 Bit S.E. HART
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