migra MPB CAN
Large Format Graphics Compatible LED Display with CANopen Interface
Page 52
microSYST Systemelectronic GmbH, Am Gewerbepark 11, 92670 Windischeschenbach
+49 9681 91960-0,
+49 9681 91960-10, [email protected], www.microsyst.de
Example: Receiving an RS Frame
(“ABCDEFG12345”):
1. Break down the RS frame into sub-frames of max. 7 bytes each.
* 1
st
sub-frame (7 bytes) = 41
h
42
h
43
h
44
h
45
h
46
h
47
h
* 2
nd
sub-frame (5 bytes) = 31
h
32
h
33
h
34
h
35
h
2. Transfer the sub-frames.
* Wait until the selected inhibit time has elapsed, if a PDO has been
previously transmitted.
* Transmit the PDO: 17
h
41
h
42
h
43
h
44
h
45
h
46
h
47
h
(prerequisite: last toggle bit status = 0).
* Wait until the selected inhibit time has elapsed.
* Transmit the PDO: 85
h
31
h
32
h
33
h
34
h
35
h
XX
h
XX
h
3. Clear the RS receive buffer.