5/12/2017
TECH-538/D.W.O. 23160
Page 70 of 189
Description of Functions
The functions available in the
Stro
menu are described as follows:
•
Adjs -
This function allows for the adjustment of the positioner to any position via the pushbuttons.
This function places the positioner in digital control mode
(input current independent)
and therefore
allows override of the control signal. Within this function there are
Fast
and
Slow move
modes. In
Fast
move
mode the valve is opened or closed in 5% increments via the pushbuttons. In
Slow move
mode the
valve is opened or closed slowly via the pushbuttons.
•
OP -
This function sets the valve to the fully energized position via the pushbuttons
(Outlet Port 1 = Supply psi & Outlet Port 2 = 0 psi)
. This function places the positioner in digital control
mode
(network independent)
and therefore allows override of the network setpoint control signal.
•
CLs -
This function sets the valve to the fully de-energized position via the pushbuttons
(Outlet Port 1 = 0 psi & Outlet Port 2 = Supply psi)
. This function also places the positioner in digital control
mode
(network independent)
and therefore allows override of the network setpoint control signal.
How to override the output using the Transducer Block
The
Stro
functions in the local display menu have also their equivalents available in the Transducer block as shown
Table 16:
Stro
functions available in the local display menu and in the TB
Stro functions in the local display
menu
Stro functions in the Transducer
block
Adjs
FINAL_VALUE
Op
FINAL_VALUE
Cls
FINAL_VALUE
Note:
See Section 11.4.3 to have more information about the Transducer block parameters present in
. These Transducer block parameters can be changed only if the MODE_BLK parameter of the
Transducer block is in “Manual” mode.
