Table of Contents
Advertisement
Prompt
SAMPLE HOLD
FAILSAFE
CLAMPING
12/00
Table 4-6 Standard Algorithm Prompts (continued)
Range/Selections
OFF, discrete parameter, 0, 1
For thermocouples only, Upscale (UP),
Downscale (DOWN) or None.
LO RANGE clamps input at the RANGE
LOW value. HI RANGE clamps the
input at the RANGE HIGH value.
RANGE clamps input over both the low
and high range values. NONE gives no
clamping.
VPR & VRX – User Manual
Programming Function Blocks and Features
Definition
Holds Input. The input value is measured
normally when this discrete is OFF and
holds its last value when the discrete is
ON (1).
Hold appears on menu only if EXPANDED
INPUT is enabled under Enable Features
in the Program menu.
Determines whether or not failsafe is active
and, if so, which direction
Clamps input at specified value.
ATTENTION: Clamping is not
recommended for process variable inputs
to control loops.
87
Advertisement
Table of Contents
