Roc Function Block; Table 5-64 Roc Dynamic Parameters; Table 5-65 Roc Static Configuration Parameters - Honeywell UMC800 Reference Manual

Function Parameter Index Reference

5.51 ROC Function Block

Description
The ROC label stands for Rate of Change. This block is part of the Auxiliary category. It looks like this
graphically on the Control Builder.
Dynamic Parameters:
Parameter Index
status 0
hi_rc 1
lo_rc 2
rate 3
IN 4
Static Configuration Parameters:
Parameter Index
filt_time 0
range_hi 1
range_lo 2
direction_hi 3
direction_lo 4
hysteresis 5
96

Table 5-64 ROC Dynamic Parameters

Type Use R/W
REAL C R
BOOL O R
BOOL O R
REAL O R
REAL I R

Table 5-65 ROC Static Configuration Parameters

Type Description
REAL filter time constant
REAL high rate of change setpoint
Range = 0 (off) to 99999.9 eu/min
REAL low rate of change setpoint
Range = 0 (off) to 99999.9 eu/min
REAL 0 = both, 1 = increment only, 2 = decrement only
REAL 0 = both, 1 = increment only, 2 = decrement only
REAL Range (0 – 999)
RS232 Communications Reference Manual
Description
block status
ON if rate > setpoint, else OFF
ON if rate < setpoint, else OFF
Rate of Change in EU/min
Analog Input
8/99