Siemens SIMATIC ET 200S Operating Instructions Manual page 137

Function of the Digital Input
For the "Function DI" parameter, select one of the following functions for the digital input:
● Input
● HW gate (see section "Gate Functions in Count Modes (Page 139)")
● Latch function (see section "Latch Function (Page 141)")
● Synchronization (see section "Synchronization (Page 143)")
Function of the Digital Outputs
For the "Function DO1" and "Function DO2" parameters, select one of the following
functions for each digital output.
● Output, no switching through comparator
● Activation at a counter status greater than or equal to the comparison value
● Activation at a counter status less than or equal to the comparison value
● Pulse on reaching the comparison value
● Switch at comparison values (DO1 only)
(see section "Behavior of the Outputs in Count Modes (Page 147)")
Influencing the Behavior of the Digital Outputs via
● Hysteresis
● Pulse duration
(see section "Behavior of the Outputs in Count Modes (Page 147)")
Technological Functions
Operating Instructions, 06/2010, A5E00124867-07
Figure 3-6 Periodic Counting with Up as the Main Count Direction
1Count5V
3.6 Count Modes
137