Computer-Generated Setpoint (Csp) - Fisher DPR900 User Manual

5.7.4
If required, the digital display can be forced to show the actual RSP
value rather than the default PV value. Set FCODE 143 to Option 3 to
show the setpoint value received on Al2 in the digital display.
Function FCODE
Option No Default
Selected
V?h?
ValUe
1""
Process 143
Display process value 1 1
Vallle Display All, in percent 2
Display A12, in percent
3
Display Al3, in percent 4
Display Al4, in percent 5
1 1
2
III
3
4
5
FCODE 143 Option 1 always displays the scaled
process variable as modified by the setpoint
limiting FCODE. Options 2 - 5 always indicate the
raw input values found at the terminals after
filtering an linearization.
By using a discrete input signal, the controller can be externally
switched to an internally stored value:
n
Controller must be in the Remote mode, R button lit.
n
If an external signal, connected to either DII or D12 with FCODE
111, goes from the active to the inactive state, the controller
switches to the ESP value. The R button remains lit as a reminder
that manual setpoint manipulation is not possible.
If the input returns to the active state, the remote value is switched
back in. Switching between Remote mode (LED lit) and internal mode
(LED not lit) can be done by means of the R button. DO2 is active
when the R button is lit.
Computer-Generated Setpoint (CSP)
See paragraph 5.9, Computer Control, for complete details for
computer controlled setpoint options.
Iday 7991 UM6.1:0PFf900:9102