PCC-IV Instruction Manual (Rev. 0.1)
Page 6-14
Section 6
– Blockware Functions
Technical Reference
Reset and Hold Inputs: The Reset Input sets and holds the clock at 0.0 minutes whenever the Reset Input is "1". If
the Hold Input is "0", the clock will start to run when the Reset Input is "0". Setting the Hold Input to "1" stops the
clock, and the time will remain at that value until the Hold Input returns to "0", at that point the clock resumes running
from the held value onward (see chart).
Reset Input
Hold Input
Clock
1
not used
0.0 min
0
0
Run / Resume
0
1
Stop and Hold
Auto-Recycle: If Parameter 1 (Auto Recycle) = 0, the Block Output will remain at Y
i
, when the clock reaches the
last valid T
i
. If Parameter 1 (Auto Recycle) = 1, when the clock reaches the last valid T
I
, the clock resets to 0.0 min
and repeats the ramp sequence.
At power down, the clock run time is saved in the Retentive Memory area of the NVRAM. During the first scan after
CPU start-up, the clock run time is set to the value stored in Retentive Memory. This feature can be bypassed by
forcing the Block logic to set the Reset Input = 1 at power-up.
---------------------------------------------------------------------------------------------
NAME: F(T) SINGLE USE FUNCTION: N OUTPUT TYPE: A
---------------------------------------------------------------------------------------------
Input Type Description Notes
_____________________________________________________________________________________________
1 D HOLD INPUT (1=HOLD) 1
2 D RESET INPUT (1=RESET) 1
Parameter Description Default Max Min Code Notes
_____________________________________________________________________________________________
1 AUTO RECYCLE 0=NO 1=YES 0 1 0 2
2 Y0 % 0.00 150.00 -150.00 2
3 T1 MINUTES 0.0 1999.9 0.0 2 2
4 Y1 % 0.00 150.00 -150.00 2
5 T2 MINUTES 0.0 1999.9 0.0 2 2
6 Y2 % 0.00 150.00 -150.00 2
7 T3 MINUTES 0.0 1999.9 0.0 2 2
8 Y3 % 0.00 150.00 -150.00 2
9 T4 MINUTES 0.0 1999.9 0.0 2 2
10 Y4 % 0.00 150.00 -150.00 2
11 T5 MINUTES 0.0 1999.9 0.0 2 2
12 Y5 % 0.00 150.00 -150.00 2
13 T6 MINUTES 0.0 1999.9 0.0 2 2
14 Y6 % 0.00 150.00 -150.00 2
15 T7 MINUTES 0.0 1999.9 0.0 2 2
16 Y7 % 0.00 150.00 -150.00 2
17 T8 MINUTES 0.0 1999.9 0.0 2 2
18 Y8 % 0.00 150.00 -150.00 2
19 T9 MINUTES 0.0 1999.9 0.0 2 2
20 Y9 % 0.00 150.00 -150.00 2
21 T10 MINUTES 0.0 1999.9 0.0 2 2
22 Y10 % 0.00 150.00 -150.00 2
Notes:
1. See chart above for REST and HOLD Input operation.
2. Times must be entered in ascending order. Starting from T0 and scanning toward T10, all
breakpoints after the first Ti = 0.0 will be ignored.
