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See also
Measuring Input Configuration (Page 154)
Measuring one measurement event on several axes - Listening measuring input (V4.0 and
5.3.9
Measuring input with hardware enable (TM17 High Feature)
On the TM17 High Feature, hardware-based enable inputs can be configured for up to six
measuring-input inputs. Measuring signals can only be detected at the assigned measuring
input if an enable is present (this is a gate function).
Note
To be able to use an enable input it must be configured on the TM17 High Feature (see
Section Global measuring on the TM15/TM17 and C240 (B1-B4)).
You will find more information on the hardware enable in the
Terminal Modules TM15 / TM17
High Feature Commissioning Manual.
Required configuration for level-controlled HW enable
● Measuring input is configured.
● Digital input on TM17 High Feature parameterized for measuring input and level-triggered
enable input set at this input. The appropriate enable input for the enable signal is
parameterized automatically.
● Digital input configured for detecting measured values (HW address).
● Measuring input must be active.
Level-controlled enable procedure
The measuring input is activated with _enableMeasuringInput or
_enableMeasuringInputCyclic. No measured values are forwarded to the TO in this state, as
no enable signal is present yet (gate closed). Edges are forwarded to the TO by setting the
enable (gate open).
Depending on the configured measuring range, measured edges are filtered by the TO in the
measuring input processing cycle clock and by the TM17 High Feature with a resolution of
several µs.
Edges are not detected if:
Measuring Input TO - Part III
5.3 Configuring the Measuring Input technology object
Output Cams and Measuring Inputs
Function Manual, 04/2014
175