60
Description of Operation
WAGO-I/O-SYSTEM 750
750-484 2 AI 4-20 mA HART Ex i
Manual
V 1.2.0 HW-Version 04, SW-Version 03
10
Description of Operation
The principle of operation of the HART I/O module is described in more detail in
the following sub-sections with regard to the various types of application and
operating modes.
•
Application type 1:
Operation with PLC library “WagoLibHART_0x.lib” when connected to
any of the 75x-xxx couplers/controllers listed in the table “Compatibility
List”.
(Default operating mode 2AI + 6-byte mailbox)
•
Application type 2:
Operation with HART dynamic variables when connected to the
PROFIBUS DP/V1 Coupler 750-333 or Controller 750-833.
(Operating modes 2AI + 1, 2, 3, 4 HART variables per channel)
•
Application type 3:
Operation with the 759-360 PROFIBUS/HART Gateway using FDT/DTM
when connected to the PROFIBUS DP/V1 Coupler 750-333 or Controller
750-833.
(Operating mode 2AI + acyclic PROFIBUS services)
10.1 With PLC Library on all compatible 75x-xxx
Couplers/Controllers
With the default parameter settings “2AI + 6-byte mailbox”, the HART I/O
module can be used with all WAGO 75x-xxx couplers/controllers of the WAGO-
I/O-SYSTEM with HART functionality, which are listed in the table
“Compatibility List”.
Consider the maximum number of modules!
Because of the process data capacity of the HART I/O module, please be sure to
take into account the corresponding maximum number of modules that can be
connected when using a WAGO 75x-xxx coupler/controller. You can find this
number in the list in table “Compatibility List”.
In the cyclic process image of the coupler/controller, the HART I/O module looks
like a 1-channel I/O module whose process values consist of the analog values
and a 6-byte mailbox. HART communication can then take place via the mailbox.
