Siemens simatic s7-400 FM 450-1 - Page 60

Commissioning
7.3 Working steps for parameter assignment
Counter module FM 450-1
60 Manual, 02/2014, A5E03648739-02
Step
Options/procedure
(X)
Assign the FM 450-1
parameters
Select encoders for counter 2
5-V encoder with
symmetrical signals
Monitoring
A + B + N
A + B
A
None
24-V encoder with
asymmetrical signals
Interface
Current-sinking output
Current-sourcing
output/push-pull
Frequency range/
minimum pulse width
≤200 kHz/≥2.5 μs
≤20 kHz/≥25 μs
24-V encoder with a pulse
train and direction signal
Interface
Current-sinking output
Current-sourcing
output/push-pull
Frequency range/
minimum pulse width
≤200 kHz/≥2.5 μs
≤20 kHz/≥25 μs
24-V initiator
Signal evaluation
Single
Double
Quadruple
Frequency and direction (with 24-V encoders)
Step
Options/procedure
(X)
Assign the FM 450-1
parameters
Specify mode for counter 1
Continuous counting
Without gate
With SW gate
With HW gate
Single counting
With SW gate
With HW gate
Periodic counting
With SW gate
With HW gate
Set count range
0 to +32 bit
-31 bit to +31 bit