Technical Manual
Glass Push-button II Smart & Push-button Smart 86 [Series .02]
MDT technologies GmbH •
51766 Engelskirchen • Papiermühle 1 • Germany
Phone: +49-2263-
880 • [email protected] • www.mdt.de
54
54
Functional principle
The "Shift value" function shifts the set datapoint type within the set limits. When the "Down" button
is pressed, the set step width is subtracted from the last value and when the "Up" button is pressed,
the set step width is added to the last value.
Lower/Upper limit
The value is shifted within these limits. The function never falls below the lower limit value and never
exceeds the upper limit value.
Step width
The step width indicates the distance between two sent telegrams. If the value 10% was sent during
the previous transmission, the value 20% is sent with the next "Up" command - with a set step width
of 10%.
Repeated sending with pressed button
Repeated sending while holding down the button allows the function to increase/decrease the value
until the upper/lower limit is reached.
The following table shows the available communications objects:
Number Name/Object Function
Length Usage
0
F1/2
–
Percent value, Decimal value …
1 Byte
2 Byte
Sending of the value to be shifted.
DPT depending on the parameter setting
3
F1/2
–
Status Percent value, Status
Decimal value …
1 Byte
2 Byte
Receiving of the status value.
DPT depending on the parameter setting
Table 36: Communication objects
–
Send Values - Subfunction: Shift Values