Siemens SIMATIC ET 200AL System Manual page 394

Counting
4.1 Configuration method 2xCount
4.1.2 Parameters/address space
4.1.2.1 Parameters
In the configuration method 2xCount of the digital input / digital output module
DIQ 16x24VDC/0.5A 8xM12 the Channels 0 to 7 are used by the counting function. The
Channels 8 to 15 can be parameterized freely.
The following table shows the general parameter of the module.
Table 4- 7
Parameters
Diagnostics: Missing load volt-
age 2L+
Diagnostics: Short-circuit to
ground
Behavior at CPU/master STOP
(8...15)
The following table shows the parameters of Counter 0 and Counter 1.
Table 4- 8
Parameter
Counting behavior Counter 0 (DI0), Counter 1 (DI2)
Input delay DI
Counting direction
Edge selection
34
General parameters
Value range
Disable
•
Enable
•
Disable
•
Enable
•
Shut down
•
Keep last value
•
Output substitute value
•
Parameters of Counter 0 and Counter 1
Value range
0.05 ms
•
0.1 ms
•
0.4 ms
•
0.8 ms
•
1.6 ms
•
3.2 ms
•
12.8 ms
•
20 ms
•
1
Forward
•
Backward
•
On a rising edge
•
On a falling edge
•
Digital input/Digital output module DIQ 16x24VDC/0.5A 8xM12 (6ES7143-5AH00-0BA0)
Default Scope
Disable Module
Disable Module
(Short-circuit of
encoder supply or
of the output to
ground)
Shut down Module
(digital outputs)
Default Scope
0.05 ms Counter
Forward Counter
On a rising edge Counter
Manual, 09/2017, A5E38688112-AB