Siemens TIA Portal Module 090-020 ユーザーズマニュアル
Industry Sector, IA&DT
SCE Training Curriculum
Page 9 of 48
To be used only at Educational and R&D Facilities
TIA Portal Module 090-020, Edition 03/2013
Unrestricted / © Siemens AG 2013. All Rights Reserved
SCE_EN_090-020_R1209_ WinCC Advanced Runtime Services
3.2
Station description
An ink mixing station is controlled using a SIMATIC S7-300 in automatic or in manual mode. In the
'Automatic' mode, the three tanks are filled using a two-point control mechanism.
At minimum fill level the supply valve of the corresponding tank is opened automatically and only closed
once the maximum fill level is reached.
The preset program is run when the Start button is pressed.
First, the drain valves are opened and the corresponding target quantities are filled into the container
from the separate tanks.
After closing the drain valves, the mixer motor is started.
At the end of the mixing period and after a short rest period, the drain valve of the container opens and
the finished color mixture is drained.
The start function is enabled as soon as the container is empty.
The start button lamp is lit and a new color mixture can be started.
In "Manual" mode, the automatic drain is terminated; all valves and the mixer motor can then be
operated manually.
The lamps in the buttons for manual operation are lit.
Tank 1
Tank 2
Tank 3
Auto-Man
START
T1 supply
T1 drain
T2 supply
T2 drain T3 supply
T3 drain
Container
Motor