Siemens SINUMERIK 840D sl Commissioning Manual page 425

08/2005
For example:
UI_0 Display assigned icon → Bit 0
...
UI_31 Display assigned icon → Set Bit 31
If the bit is reset by the PLC, the associated icon is cleared from the display.
Example:
UI_3=Icon_01.bmp,12.
If Bit 3 is set, the "Icon_01.bmp" icon is displayed at the 12
another icon with a higher identifier (>UI_3) and the same position (12) is not
active.
Possible applications
With unique selection, a maximum of 16 bits are set simultaneously in the 4
selection bytes for each of the different positions.
• 32 alternative images for a position, each selected with a different bit (currently
only one active selection bit)
• 2 alternative images for each of the permissible 16 positions, each position
requires 2 of the 32 selection bits
(maximum 16 active selection bits at any one time)
• Combination thereof with a maximum total of 32 images for the maximum 16
positions (maximum of 16 active selection bits at any one time)
• More than 16 selection bits, see Superimposition
Superimposition
With non-unique selection (bits for multiple identifiers whose image is to be
displayed at the same position):
The image with the lower identifier number is superimposed with the image with the
higher identifier number for the same position. Non-unique selection can also be
used with less than 16 active selection bits. The PLC can deliberately use this
superimposition to overlay less important displays (with lower identifier numbers)
with important displays (high identifier numbers).
Note
If two HMI units are assigned to one NC/PLC unit (M:N), the PLC must first
determine from the control interface which of the HMI interfaces is active. Icons
can be requested by the PLC for the active HMI unit only.
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Installation and Start-Up HMI (IAM) - 08/2005 Edition
Commissioning HMI Advanced (IM4)
2 Setting Functions and Parameters
th
position, provided
IM4/2-31