Measured Value Determination; Switching The Outputs At Comparison Values - Siemens SIMATIC ET 200SP Manual

Product overview
2.2 Functions
2.2.2

Measured value determination

The following high-accuracy measurement functions are available (accuracy up to 100 ppm):
● Frequency measurement with the unit of hertz
● Period measurement with the unit of seconds
● Velocity measurement with a flexibly adaptable unit
Update time
You can configure the interval at which the technology module updates the measured values
cyclically as the update time.
Gate control
You can define the time window in which the count signals are acquired with the hardware
gate (HW gate) and software gate (SW gate).
2.2.3

Switching the outputs at comparison values

The available digital outputs DQ0 and DQ1 can be directly activated/switched by the
specified comparison values or via the user program. The comparison values are
configurable and can be modified during runtime with the user program. This enables very
fast reaction times to be achieved.
Comparison values in the Counting mode
You define two comparison values in the Counting mode. If the current counter value meets
the configured comparison condition, the corresponding digital output can be set to directly
initiate control processes in the process.
Comparison values in the Measuring mode
You define two comparison values in the Measuring mode. If the current measured value
meets the configured comparison condition, the corresponding digital output can be set to
directly initiate control processes in the process.
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TM Count 1x24V (6ES7138‑6AA01‑0BA0) technology module
Manual, 07/2019, A5E33002339-AD