Threshold Detector Output; Threshold Detector Source; Menu 12: Threshold Detectors, Variable Selectors And Brake Control Function - Emerson Mentor MP Advanced User's Manual

Parameter
Menu 12
structure
5.13

Menu 12: Threshold detectors, variable selectors and brake control function

5.13.1 Threshold detectors function
Menu 12 includes two threshold detectors which produce logic signals depending on the level of a variable value with respect to a threshold, and two
variable selectors which allow two input parameters to be selected or combined to produce a variable output. One menu 9 or one menu 12 function is
executed every 4 ms. Therefore the sample time of these functions is 4 ms x number of menu 9 and 12 functions active. A function is active if one or
more sources are routed to a valid parameter.
Figure 5-29 Menu 12 logic diagram (Threshold detectors)
Threshold
Detector 1
Any variable
paramete r
??.??
??.??
Threshold
Detector 2
Any variable
parameter
??.??
??.??
12.01 Threshold detector 1 output
12.02 Threshold detector 2 output
Bit SP
Coding
1
Update rate 4 ms x number of menu 9 or 12 functions active write
12.03 Threshold detector 1 source
12.23 Threshold detector 2 source
Bit SP
Coding
Range Pr 0.00 to Pr 22.99
Default Pr 0.00
Update rate Read on reset
160
Keypad and
Threshold
Detector 1
threshold level
12.04
Threshold
Detector 1
12.03 12.05
Threshold Threshold
Detector 1
Detector 1
hysteresis
input source
Threshold
Detector 2
threshold level
12.24
Threshold
Detector 2
12.23 12.25
Threshold
Threshold
Detector 2
Detector 2
input source hysteresis
Key
Input
Read-write (RW)
0.XX
terminals
parameter
Read-only (RO)
Output 0.XX
parameter
terminals
FI DE Txt VM DP ND
1
FI DE Txt VM DP ND
2
www.onxcontrol.com
Advanced parameter
format
Parameter description
Threshold
Threshold
Detector 1 Detector 1
output indicator
destination
paramete r
12.01
x(-1)
12.06
Threshold
Detector 1
output invert
Threshold Threshold
Detector 2 Detector 2
output indicator
destination
paramete r
12.02
x(-1)
12.26
Threshold
Detector 2
output invert
Threshold
level
Threshold
output
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
1 1 1
Serial comms
protocol
descriptions
output
Any
unprotected
12.07
bit parameter
??.??
??.??
output
Any
unprotected
12.27
bit parameter
??.??
??.??
All parameters are shown
at their default setting
Hysteresis
t
t
PS
PS
1
Mentor MP Advanced User Guide
Performance
Issue Number: 4