migra Serial
Large Format, Graphics Compatible Display
Page 14
microSYST Systemelectronic GmbH, Am Gewerbepark 11, 92670 Windischeschenbach
+49 9681 91960-0,
+49 9681 91960-10, [email protected], www.microsyst.de
3.6.2 Controlling
There are two possibilities to control the large format display:
1. The controller boards of the large format display are ac-
cessed separately (with two or three different addresses). Bit
0 of the Byte “FC” must be set (see chapter “Header”).
Example: Querying graphics
Transmit frame:
02 8
1
80 8
1
1B 47 2B 30 30 30 03
Wait for response:
02 80 81 80 30 03
Transmit frame:
02 8
2
80 8
1
1B 47 2B 30 30 30 03
Wait for response:
02 80 82 80 30 03
Transmit frame:
02 8
3
80 8
1
1B 47 2B 30 30 30 03
Wait for response:
02 80 83 80 30 03
2. The large format display is accessed with one address. Bit 0
of the header byte “FC” must not be set (see chapter “Head-
er”). Then, all controller boards evaluate the frame, not de-
pending on the address. However, no response frame is
transmitted to the master. Therefore, there must be taken a
break after frame transmission (see chapter “Online Frame
Layout”).
Example: Querying graphics
Transmit frame:
02 8
1
80 8
0
1B 47 2B 30 30 30 03
Take a break:
see chapter “Online Frame Layout”