Fdt/Dtm Concept; Table 37: Parameter Data For Acyclic Access - WAGO 750-484 Manual

WAGO-I/O-SYSTEM 750
750-484 2 AI 4-20 mA HART Ex i
Selection Parameters for 75x-482 2AI/4-20 mA/SE/ Ex i

Table 37: Parameter Data for Acyclic Access

Parameter
Acyclic
access to the
HMDs
9.2

FDT/DTM Concept

FDT is an abbreviation for "Field Device Tool". This is frame application
software, which can be used to parameterize, configure and control fieldbus
devices separately from the specific communication technologies of the different
fieldbusses.
In order to establish communication with the individual devices in an FDT
application and from there to be able to access the adjustable device parameters,
the application requires an addition in the form of a software component for each
field device.
The specific functions and dialogs of a field device for parameterization,
diagnosis and maintenance, including the user interface, are reproduced in such a
software component, which is referred to as a DTM (Device Type Manager).
Comparable with device driver software, the DTM is supplied with the device by
the device manufacturer and installed on the PC by the user. The DTM is
subsequently loaded into the FDT frame application from where it is executed.
FDT/DTM is an open concept, which encourages a uniform operating concept
within an overall control program in which individual components from different
manufacturers can work together.
WAGO provides a simple and convenient FDT frame application in the form of
the "759 370 WAGOframe FDT Frame Application" software.
Manual
V 1.2.0 HW-Version 04, SW-Version 03
PV = first Variable
SV = second Variable
TV = third Variable
QV = fourth Variable
*)
Default value
Value
*)
- Disabled
- 12 Byte Mailbox
*)
Default value
(Primary Variable),
(Secondary Variable)
(Tertiary Variable)
(Quarternary Variable)
Description
- Acyclic access to the HMDs (HART
Master Devices) is deactivated
- 12-byte mailbox for acyclic access
activated
Operating Modes 57
,