Human Machine Interface (Hmi) - Sony Multiscan CPD-1304S Service Manual

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4.3 Human machine interface (HMI)

Interactive display
Figure 4.5:
In normal operation GasLab Q2 can be operated completely via this interactive display, also
known as operation panel, since it allows the direct reading of the measurement and target values
as well as the control and settings. An onscreen keypad is displayed if required.
At startup, the GasLab Q2 represents all process-dependent values (for example, temperature,
pressure, etc.) as a fault in red writing until measurement conditions are reached. When the
measurement conditions are reached, the values are displayed in black, and the measurement
will start. Two status LEDs indicate the device state.
To protect against unauthorized use, passwords can be assigned to prevent or restrict access. In
addition, operation and control is possible via Ethernet and associated PC software or browser.
The software is described in more detail in chapters 7 and 8.
Page 26 of 135 G a s Q u a l i t y A n a l y z e r
Structure of GasLab Q2
The actual interface with the
human being primarily con-
sists of an LCD display and a
capacitive touch foil located
directly behind a glass
window. The window can be
covered with a screw cap
which offers sand protection
in an erosive environment
(see Fig. 5.1).
In addition, the HMI area
(invisible to the operator)
consists of electronic circuits.
These communicate with one
another via an I/O bus and
manage, display and data
logging of measured data as
well as handling of the device.
Inputs and outputs are also
managed in this area too.
GasLab Q2