Rockwell Automation 1770-KF2 Data Highway or Highway Plus Interface Module User Manual - Manual (Page 217)

Detailed Flowcharts
Appendix D
DĆ13
Figure D.14
SENDDATA Subroutine
SENDDATA
TXALLOC
Allocate UART
or Wait
SEND
Transmit Link
Data Byte
Is Data
Byte DLE
?
SEND
Transmit a
Second DLE
TXFREE
Deallocate
UART
RETURN
11666
Yes
No
Input
•
Link Data Byte