Beckhoff TwinCAT 2 TX1200, Руководство пользователя

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Programming
TX1200 54 Version: 1.1
https://infosys.beckhoff.com/content/1033/tcplclibmpbus/Resources/gif/12063688459.gif
The input data bRelay_R1 to bRelay_R3 switch the relays R1 to R3 (PIN 15 to PIN 17). The variable iUa
switches the analog output 0...10 V to PIN 5. One digit corresponds to 1 mV.
The data structure SETTINGS is used for parameterization of the UST3. The scaling of the analog input data
can be set, and the resistance measurement can be enabled on PIN4. For resistance measurement, the
scaling of the resistance reading can be changed. This can also be done during operation.
iU1 is the analog
input on PIN 3. One digit corresponds to one mV or, if the scaling in the data structure SETTINGS has been
changed, 250 µV. The same applies to the analog inputs iU2_YSensor (PIN 4) and iU3
(PIN 7). iU2_YSensor can also be used for resistance measurement. This must be set via the data structure
SETTINGS bDigital_S1 to bDigital_S3 correspond to the digital inputs of the UST3, PIN 7 to PIN 9.
All data is automatically polled by the KL6771 MP-Bus master terminal. The polling speed depends on the
number of connected MP-Bus devices and the set polling time. The digital inputs are
unsuitable for
connecting push buttons or sensors, which only issue short pulses. In order to be able to register a change in
signal level reliably, it must be present for at least one second.