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WAGO-I/O-SYSTEM 750
750-484 2 AI 4-20 mA HART Ex i
Additional Information about HART Technology
You will find more detailed information on HART technology on the HART
Communication Foundation website (HCF user organization) at:
www.hartcomm.org
9
Operating Modes
The HART I/O module can be used with various operating modes depending on
connection and parameterization.
Table 33: Overview of Operating Modes
Operating Mode
2 AI + 6 bytes mailbox
(Default)
2 AI + 1 HART variable
per Channel
2 AI + 2 HART variables
per Channel
2 AI + 3 HART variables
per Channel
2 AI + 4 HART variables
per Channel
2 AI + acyclic PROFIBUS
services
*) see chapter „Compatibily List"
In the as-supplied state, the HART I/O module is configured in the default
operating mode as a 2-channel analog input module for 4 mA ... 20 mA signals
with HART functionality. In this default operating mode the I/O module can be
connected to all WAGO couplers and controllers listed in the table "Compatibility
List". In this case, HART communication is enabled by a 6-byte mailbox, which
is incorporated with the analog values in the cyclic process image.
In addition, five further operating modes can be set up specially for connecting to
the PROFIBUS DP/V1 Fieldbus Coupler 750-333 or Fieldbus Controller 750-833.
The section "Description of Operation" following the section on parameterization
and a short introduction to the FDT/DTM concept and HART via PROFIBUS,
describes the individual operating modes in the appropriate applications in more
detail together with a description of the communications process and brief
commissioning instructions in each case.
Manual
V 1.2.0 HW-Version 04, SW-Version 03
on Fieldbus Coupler/-
Controller
all compatible Fieldbus
couplers/-controllers
75x-xxx *)
PROFIBUS DP/V1
Fieldbus coupler
750-333 or Fieldbus
controller 750-833
Operating Modes
Use
1) with
„WagoLibHART_0x.lib"
PLC library
2) with HART dynamic
variables
3) with PROFIBUS/HART
Gateway 759-360
49
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