Behavior Of The Outputs In Measurement Modes - Siemens SIMATIC ET 200S Operating Instructions Manual

3.7.10

Behavior of the Outputs in Measurement Modes

Introduction
The various ways of setting the behavior of the outputs are described in this section.
Behavior of the Outputs in Measurement Modes
You can assign parameters to the digital outputs of the 1Count5V/500kHz.
You can store a high and a low limit for frequency measurement, rotational speed
measurement or period measurement. If the limits are violated, digital output DO1 is
activated. These limit values can be assigned and changed with the load function.
You can change the function and the behavior of the digital outputs during operation. The
new function takes effect immediately. In isochrone mode it always takes effect at time T
You can choose from the following functions:
• Output
• Measured value outside the limits (limit-value monitoring)
• Measured value under the low limit (limit-value monitoring)
• Measured value over the high limit (limit-value monitoring)
Output
If you want to switch the outputs on or off, you must enable them with the CTRL_DO1 and
CTRL_DO2 control bits.
You can switch the outputs on and off with the control bits SET_DO1 and SET_DO2.
You can query the status of the outputs with the status bits STS_DO1 and STS_DO2 in the
feedback interface.
In isochrone mode, the outputs are switched at time T
Technological Functions
Operating Instructions, 02/2007, A5E00124867-05
1Count5V/500kHz
3.7 Measurement Modes
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