Siemens SIMOTION TM15 Commissioning Manual

Technical data
6.2 System behavior
TM15 / TM17 High Feature Operating Manual
Commissioning Manual, 05/2009
79
The minimum pulse width depends on the specified edge selection:
Edge selection Minimum distance Explanation
Rising edge
Falling edge
Minimum sampling cycle
(see "Minimum Sampling Cycle" table).
Each new edge requires a new
measurement command.
Both edges Both edges are sampled within
one sampling cycle.
Both edges,
rising edge first
Both
edges,
falling edge first
>1 µs/125 µs
1
(TM17)
>125 µs (TM15)
Minimum distance between first
measurement edge and previous
edge = 4 position control clock
cycles
1
Depending on filter selection.
Note
The parameter assignment screen for the Measuring Input technology object contains two
fields for edge selection:
• Edge selection for (single) measurement
• Edge selection for cyclic measurement
6.2.3 System behavior with cyclic measurement
Up to two edges can be measured in each execution cycle of the Measuring Input TO (IPO
interpolation cycle clock, IPO2 interpolation cycle clock or position control cycle clock).
The measured values must be read from the user program before they can be overwritten by
a new measurement.
Result:
● A maximum of two edges can be evaluated per IPO cycle clock if the scan routine of the
user program is in the IPO synchronous task.
● A maximum of two edges can be evaluated per position control cycle clock if the scan
routine of the user program is in the servo-synchronous task
The servo-synchronous task is the lowest possible time level for a user program.

Siemens SIMOTION TM15 Specifications

General

Brand	Siemens
Model	SIMOTION TM15
Category	Touch terminals
Language	English