migra Ethernet/IP
Large Format, Graphics Compatible Display with Ethernet/IP Interface
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microSYST Systemelectronic GmbH, Am Gewerbepark 11, 92670 Windischeschenbach
+49 9681 91960-0,
+49 9681 91960-10, [email protected], www.microsyst.de
3.7 General Frame Description
The frames to be transmitted to the display have the following structure:
Offset
Designation
Content
Description
0
TB
0 ... 255
Toggle byte
(*0)
1
LB
Length byte = frame length
2
Migra frame
2…3
See chapter “Online Frame Layout”
*0: Toggle byte:
The toggle byte must be increased by 1, if the frame shall be processed
However the toggle byte must only be changed if the lock-byte = 0 (see chapter
“General Frame Description”). Otherwise there is a lock from the configuration
software MICON (because it controls the display at the moment).
The lock-
byte is read from address 0x3FE of the display interface (with “explicit
messaging”).
The transmit-bytes are written as of the address 0x202 into the display
interface.
Response Frame:
The display writes the response frame as of the address 0x160.
Offset
Designation
Content
Description
0
TB
0 ... 255
Toggle byte
(*0)
1
LB
Length byte = frame length
2
Response frame
2…3
See chapter “Response Frame”