Flowserve 3400IQ - Manual (Page 23)

Logix 3400IQ Digital Positioner FCD LGENIM3403-00 – 11/07
(NormalShed_NormalReturn is the typical setting.) After these two parameters are properly set, the AO
MODE_BLK can be changed to MAN.
A
B
A. CHANNEL must be set to 1 B. SHED_OPT cannot be set to Uninitialized
Figure 14: Manual Mode Configuration
With the AO now inMAN mode set the FVPTB to Auto mode. Writing to the OUT: VALUE parameter, in the
AO block, will control the valve position. The FINAL_VALUE parameter in the FVPTB will now track the AO’s
OUT: VALUE.
FF Control:
Fieldbus control is much more complicated. The FF network must be configured with some type of
transmitter (AI) and control function block (PID). The configuration must then be downloaded to the devices.
For this reason, the next section will cover FF network configuration. Valve control within a FF control loop
will be covered here.
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