1-2
1-2. Communication
There are three ways to communicate with the SVP: manually, using a Commstaff or using a
HART communicator.
1-2-1. Manual communication
Initial SVP configuration’s is typically performed using a screwdriver. Auto-Setup and travel
calibration, which detect the characteristics of the valve, as well as Zero/Span adjustment can
all be performed manually.
Without further configuration, the SVP provides valve travel from fully open to fully closed
from a 4-20 mA analog signal (refer to ordered specifications) or analogous HART signal.
1-2-2. Using a Commstaff
Azbil Corporation’s Commstaff Model (CFS100) can be used for all configuration, calibration
and maintenance of the SVP. SVP-specific communicator functions are documented fully in
this manual. Refer to the operation manual for Smart Valve Positioner (CM2-CFS100-2010)
1-2-3. Using a HART communicator
Emerson Electric HART communicator model 375 can be used for all configuration,
calibration and maintenance of model AVP102 SVP-specific communicator functions are
documented fully in this manual. See the HART communicator manual to learn more about
the HART communicator.
1-2-4. HART communication (for model AVP102)
This figure shows the structure of a system in which the position detected by the SVP,
the values of the SVP settings, and the results of self diagnostics are output in the HART
communication protocol.
HART communicator
Controller
I IN I IN
4-20mA DC
+
+
-
-
Fig. 1-2. HART communication structure
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