Delta AS Series Programming Manual page 937

AS Ser ies Pro gra mm in g M anu al
9. Timing diagrams

Mode for receiving data: 0
When data is sent, you cannot cancel the sending of data. If the conditional contact preceding the instruction
is not enabled, the data will still be sent, but the completion flag will not be set to ON after sending of the data
is complete.

Mode for receiving data: 1 or 4
Starting the ex ecution
of the ins truc ti on
Sending d ata
Reception fl ag
Rec eiving d ata
Completion fl ag
Comm uni cation
timeout fl ag
_6
Description:
① Start/stop the execution of the instruction.
② Time during which data is sent. The period of time in which data is sent is not measured.
③ After the first character is received, the time that passes before the next character is received is
measured. Whenever a character is received, the instruction clears the time measured. The completion
flag is not be set to ON until the time measured is greater than the setting value in D
④ If the instruction is still enabled after you reset the completion flag or the communication flag, the next
communication data is sent automatically when the instruction is scanned in the next cycle.
⑤ When the PLC begins to receive data, it begins to measure the time that passes. It does not set the
communication timeout to ON until the time measured exceeds the timeout period. It is suggested that
you set the timeout period to be longer than the time set in D
6 - 6 5 8
3
2
1
5
2
4
4
+1.
2
1
+1.
2