Program Constants; Table 4-52 Constant Prompts - Honeywell VPR100 User Manual

4.16 Program Constants

Constants can be programmed here and their values edited Online. Select a constant to program.
Table 4-52 describes the Constant prompts. See Table 4-2 for additional prompts.
Prompt
VALUE OFF, analog
parameter, number
INPUT LOW LIMIT OFF or number
INPUT HIGH LIMIT
DESTINATION
NONE
LPn GN
LPn PB
LPn RS
LPn RA
LPn RB
LPn IS
LPn DS
LPn HS
LPn LS
AOn IS
AOn DS
AOn HS
AOn LS
AOn IT
COMM CONSTANT YES or NO
12/00

Table 4-52 Constant Prompts

Range/Selections
If a number, the Constant may be altered Online from the Data
Entry menu. If a parameter, this parameter can be directed by
DESTINATION to override certain programmed values.
Display limits (for when viewing Constant on trend display or on
bar displays).
See Destination defined on next page.
No destination
LOOPn GAIN1
LOOPn PROP. BAND #1
LOOPn RESET #1
LOOPn RATE #1
LOOPn RATIO BIAS
LOOPn SP INC SLEW LIMIT
LOOPn SP DEC SLEW LIMIT
LOOPn SP HIGH LIMIT
LOOPn SP LOW LIMIT
AOn INC SLEW LIMIT
AOn DEC SLEW LIMIT
AOn IN HIGH LIMIT
AOn IN LOW LIMIT
AOn IMPULSE TIME (type DAT)
A constant can receive its value from a remote host. The remote
value can then be plotted (via the constant) on a trend for display
or to data storage.
YES: The constant, when written to remotely via serial
communications (with Binary and Modbus Protocols), is written
only to the RAM copy of the instrument configuration but not to
the nonvolatile flash copy. When the instrument cold starts, the
constant reverts back to any value that was manually set with the
instrument's displays. That is, after a cold start or power cycle,
the constant's value is the last value as set by the instrument and
not as set by the remote host.
NO: The constant, when written to remotely via serial
communications (Binary and Modbus), will be written to the RAM
copy of the instrument configuration and also to the nonvolatile
flash copy. After a cold start, the constant's value is the last value
as set by the Local User Interface or the remote host.
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Programming Function Blocks and Features
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