ABB 800xA Operation page 214

Loop Definition Templet
PROCESSING RATE Field
Specifies the interval at which the loop is processed (scanned). This field, the
PROCESSING PHASE, and BASERATE fields interact to determine the actual
loop processing rate. Scan Rate (Loop Detail display) equals the Processing Rate
divided by the Base Rate. If the Base Rate is 0.5 and the Processing Rate is 1.0, then
the Scan Rate is 2.0.
Valid entry is in the form of an integer equivalent of hr:min:sec.
The minimum acceptable value is the base rate of the module (0.1 to 1.0) as
specified on the CCF Templet. The maximum value is 65535 times the base rate (if
the base rate is 0.25 then the maximum is 16383.75). The value entered on this field
is automatically rounded up to the next higher multiple of the base rate.
Loop Definition Template entry examples:
Runtime Entry
0.25
5
257
7744
PROCESSING PHASE Field
Use this field to distribute processing for the loops about the processing interval.
This field, the PROCESSING RATE, and BASERATE fields interact to determine
the loop processing rate. Valid entry is: any integer from 0 to PROCESSING RATE
/ BASERATE - 1 (rounded up to the next higher integer if not a whole number). If
an entry is greater than the valid maximum, the phase is set to 0.
TREND RATE Field
Specifies the rate at which the trend data for the measured variable is collected.
Valid entries are the following number of seconds:
214
Configurator Entry Interpreted as:
.25
5
4:17 or 257
2:09:04 or 7744
0 (no trend collection), 6, 12, 60, 120, 360, 720, 1440, 2880
Appendix A Runtime Templates
.25 seconds
5 seconds
4 minutes 17 seconds
2 hours 9 minutes 4 seconds
3BUR002418-600 A