PCC-IV Instruction Manual (Rev. 0.1)
Page 6-10
Section 6
– Blockware Functions
Technical Reference
F35
[H/LLIM] High / Low Signal Limiter
Function
H/LLIM
passes the Input to the Block Output if the value is less than Parameter 1 (Hi Limit), and greater
than Parameter 2 (Low Limit). If the Input is outside of these limits, the Block Output is held at the appropriate limit
value. The limits can be positive/positive, positive/negative, or negative/negative; however, the Hi Limit must be
greater than the Low Limit.
---------------------------------------------------------------------------------------------
NAME: H/LLIM SINGLE USE FUNCTION: N OUTPUT TYPE: A
---------------------------------------------------------------------------------------------
Input Type Description Notes
_____________________________________________________________________________________________
1 A INPUT
Parameter Description Default Max Min Code Notes
_____________________________________________________________________________________________
1 HI LIMIT 100.00 199.99 -199.98 2 1
2 LOW LIMIT 0.00 199.98 -199.99 2 1
Notes:
1. The Hi Limit MUST be greater than the Low Limit.
F36
[RLIM] Rate Limiter
Function
RLIM
compares the %/sec rate of change of the
Input analog signal to Parameter 1 (increasing) & 2
(decreasing) rate of change limits. Whenever the Input rate
of change is between the two limits, the Input is passed to
the Block Output. If the Input rate of change exceeds either
limit, the Output will ramp at the appropriate rate limit until
the Output becomes equal to the Input.
The Input rate of change is ignored during the output rate
limiting mode. Therefore, if the Input rate of change briefly
exceeds one of the limits, and then returns to a moderate
rate, the Block Output will lag the Input until the Output
becomes equal to the Input again.
---------------------------------------------------------------------------------------------
NAME: RLIM SINGLE USE FUNCTION: N OUTPUT TYPE: A
---------------------------------------------------------------------------------------------
Input Type Description Notes
_____________________________________________________________________________________________
1 A INPUT
Parameter Description Default Max Min Code Notes
_____________________________________________________________________________________________
1 + %/SEC LIMIT 10.00 100.00 0.10 2
2 - %/SEC LIMIT -10.00 -0.10 -100.00 2
-10
-5
0
5
10
15
20
25
30
0
5
10
15
20
%/sec
, %
Input
&Output
Seconds
RLIM, Limits: +2%/sec, -5%/sec
Input
%/Sec
Output
