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4.4 Check-out with SVI3 DD using HART Communications
For communication to a HART
®
device, there is a Device Description Language. A Device
Description, DD, is published by registration with the FieldComm
TM
Group
.
When the DD is
installed in a host communication device then the host can readily access all the
information in the smart field device. The SVI3 DD can be obtained from the website or by
contacting your local representative
This section covers a subset of the functions available with HART
®
using DD interface
.
If
the SVI3 is not configured with DTM and ValVue, and not equipped with the local
pushbuttons/display, then the DD interface can be used to perform configuration and
calibration routines.
C
onnect the HART
®
Handheld Communicator or HART capable host system to the SVI3 as
shown in Figure 36 on page 68
.
Refer to the product manual for the HART
®
Communicator
included with the GE DPI620 or other HART
®
communication devices.
Figure 36 SVI3 HART Communicator Connections
CAUTION
z
Do not connect a HART
®
modem and PC to a control circuit unless
the controller is HART compatible or has a HART
®
filter
.
Loss of
control or a process upset may occur if the controller output circuit is
not compatible with HART
®
signal.
WARNING
Do not connect a PC or HART
®
modem to an intrinsically safe circuit
except on the safe area side of the barrier
.
Do not operate a PC in a
hazardous area without compliance to local and plant regulations.
REMOTE
PV
1-5Vdc
D/I
+ -
4-20mA OUT
+ -
1
SW #2
+ -
SW #1
+ -
2
3
+ -
4-
20
m
A
IN
+
-
REMOTE
PV
1-5Vdc
D/I
+ -
4-20mA OUT
+ -
1
SW #2
+ -
SW #1
+ -
2
3
+ -
4-
20
m
A
IN
+
-
SVI3
HandHeld
HART
Communicator
+
-
4-20mA
Current Source
