Siemens SIMATIC ET 200S Operating Instructions Manual page 83

Parameter
Mode
Measuring mode
Measuring method
Resolution of period
Function DI
Input signal HW gate
Low limit
High limit
Integration time [n*10ms] (update time)
Encoder pulses per revolution
DO1 diagnostics (wire break, short circuit) is possible only with pulse lengths of > 90 ms on digital output DO1.
1
Only relevant in rotational speed measurement mode
2
Parameter Assignment Error
The following parameter assignment errors may occur:
● Incorrect mode
● Low limit incorrect
● High limit incorrect
● Integration time incorrect
● Encoder pulses incorrect
What to Do in the Event of Errors
Check the set value ranges.
Technological Functions
Operating Instructions, 06/2010, A5E00124867-07
Value Range
Frequency measurement/
Rotational speed measurement/
Period measurement
With integration time/continuous
1 µs
1/16 µs
Input/HW gate
Normal/Inverted
Frequency measurement:
0...f -1
max
Rotational speed measurement:
0...n -1
max
Period measurement:
0...T -1
max
Frequency measurement:
low limit+1...f
Rotational speed measurement:
low limit+1...n
Period measurement:
low limit+1...T
Frequency measurement:
1 to 1000
Rotational speed measurement:
1 to 1000
Period measurement:
1 to 12000
1...65535
2
max
max
max
2.7 Measurement Modes
Default
Frequency measurement
With integration time
1 µs
Input
Normal
0
0
0
f
max
n
max
t
max
10
10
10
1
1Count24V
83