Analog modules
9.3 SM 336; F-AI 6 x 0/4 ... 20 mA HART
Fail-safe signal modules
282
Installation and Operating Manual, 01/2010, A5E00085586-10
9.3.16.5
Using HART
System environment for using HART
To operate an intelligent field device with HART functionality, you require the following
system environment:
Current loop 4 - 20 mA via the analog module SM 336, F-AI 6 x 0/4 ... 20 mA HART.
The module functions as a "master" by receiving the commands from the HART parameter
assignment tool, passing them on to the intelligent field device and then returning the replies.
The interface of the module is represented by data records that are transferred via the I/O
bus. These data records are created or interpreted by the HART parameter assignment tool
(SIMATIC PDM). PDM (Process Device Manager) is available as a stand-alone tool or as a
tool integrated in
HW Config. An option package is used for the latter.
The analog values are entered in 16-bit format in the process input and output image.
STEP 7
,
SIMATIC PDM
, HART communicator
You can assign the HART parameters either with an external HART handheld device (HART
communicator) or with
SIMATIC PDM. SIMATIC PDM accesses through the module while
the HART communicator is connected directly in parallel to the field device.
P$
/9
$'8
6,0$7,&
3'0
+$57FRPPXQLFDWRU
0*URXQG
7UDQVPLVVLRQUHFHLSW
RI+$57VLJQDO
$QDORJWRGLJLWDOFRQYHUVLRQ
RIF\FOLFPHDVXUHGYDOXH
&RQQHFWLRQWR
352),%86
0RGHP
+$57DQDORJPRGXOH
)LHOGGHY$57IXQFWLRQDOLW\
+$57SDUDPHWHUDVVLJQPHQWWRRO
Figure 9-45 System environment for HART applications
