Fisher FIELDVUEDVC6200f Instruction Manual page 305

Instruction Manual
D103412X012
Table E‐33. Valve Set Point for Discrete State
Discrete State
0
1
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
The SP_PV Track in Man option permits the set point to track the process variable when the block is in Manual mode.
With this option enabled, the set point (SP_D [8]) becomes a copy of the process variable
(PV_D [7]), and a manually‐entered SP_D [8] value is overwritten on the block's next execution cycle. This option can
prevent a state change when transitioning from Manual to Automatic mode. You can disable this option in Manual or
Out of Service mode only.
The Invert option inverts the set point at SP_D [8] before it is stored in OUT_D [9]. With this option enabled, OUT_D
[9] becomes an inverted copy of SP_D [8] where non‐zero values of SP_D [8] are considered a logic 1. With this option
disabled, OUT_D [9] is a direct copy of SP_D [8]. The readback value is processed through the Invert option to become
PV_D [7]. The Use PV for BKCAL_OUT option specifies that BKCAL _OUT equal the value of the process variable (PV_D
[7]) instead of the set point (SP_D [8]). If you do not enable this option, BKCAL_OUT will equal SP_D [8].
Output Block PV Status
The Output Block PV Status is determined by the value of the Field Diagnostic Alerts Set PV Status parameter in the
transducer block (FD_OPTIONS [96]), the Transducer Block mode, and enabled Active Field Diagnostic alarms. Refer to
table 4‐7.
Valve Set Point with IO_OPTS Invert = 0
Closed
Open
5%
10%
15%
20%
25%
30%
35%
40%
45%
50%
55%
60%
65%
70%
75%
80%
85%
90%
95%
Open
DVC6200f Digital Valve Controller
DO Function Block
Valve Set Point with IO_OPTS Invert = 1
Open
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Closed
February 2017
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