SVI-II Instruc Man.book - Fagerberg

Configuration and Calibration
Check-out with a HART Handheld Communicator
Check-out with
a HART
Handheld
Communicator
This section covers a subset of the functions available with HART. For a
complete description refer to Chapter 4 Using the Digital Interfaces. If the SVI
II AP is not equipped with optional pushbuttons and local display the checkout
and configuration is performed using the standard HART communications
interface. In addition to the functions performed with the local pushbuttons
additional functions are performed with HART. For example, the instrument
tag descriptor is written and stored in non-volatile memory and used for point
to point wiring checkout.
Connect the HART Handheld Communicator (HHC) to the SVI II AP as shown
in Figure 31 below. Refer to the Product Manual for the HART Communicator
included with the HHC375 or other HART communication devices.
Configuration
Lock Jumper
12.00 mA
Input Signal
+ -
HHC375
Figure 31 SVI II AP HART Communicator Connections
Be sure that the configuration lock jumper is in the unlock position. When the
jumper is in the lock position (shorting the two-pin header) the HHC375 is not
permitted to make any changes. However, parameters are readable. If fault
messages appear, they must be handled before proceeding with HART
communications. Before communications proceeds all error messages must
be cleared. For example, the following message is displayed if the instrument
has been serviced and the air is not connected.
Note:
“Process applied to the non-primary variable is outside the operating
limits of the field device”
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