Position Detection - Siemens SIMATIC ET 200S Operating Instructions Manual

1Count5V/500kHz
3.8 Position feedback
3.8.2

Position detection

Definition
In this mode, the 1Count5V/500kHz counts continuously starting from the load value:
• If the 1Count5V/500kHz reaches the high counting limit when counting up, and another
• If the 1Count5V/500kHz reaches the low counting limit when counting down, and another
• The high counting limit is set at +2147483647 (2
• The low counting limit is set to –2147483648 (–2
Figure 3-35
Function of the Digital Input
For the "Function DI" parameter, select one of the following functions for the digital input:
• Input
• HW gate
• Latch Function
• Synchronization
See also
Gate Functions for Position Detection (Page 197)
Latch Function (Page 200)
Synchronization (Page 203)
196
count pulse then comes, it will jump to the low counting limit and continue counting from
there without losing a pulse.
count pulse then comes, it will jump to the high counting limit and continue counting from
there without losing a pulse.
Count Continuously with Gate Function
– 1).
31
).
31
Technological Functions
Operating Instructions, 02/2007, A5E00124867-05