Delta AS Series Programming Manual page 938


Mode for receiving data: 2, 3, 5, 6, or 9.
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
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 communication timeout flag is not set to ON until the time measured exceeds the
timeout period.
④  If the instruction is still enabled after you reset a completion flag or a communication flag,
the next communication data is sent automatically when the instruction is scanned in the
next cycle.
10. Mode for sending data / Mode for receiving data
8-bit mode: The command that is edited is stored in the initial transmission device, and the command to be sent
includes the head code and the tail code. The instruction divides the 16-bit data into the high 8-bit data and the low
8-bit data. The instruction ignores the high 8-bit data, and can send or receive the low 8-bit data can be sent or
received. Take standard Modbus for example.
Sending the data: (PLC→external equipment)
2
3
4
1
Cha p ter 6 App l ied Ins truc tio ns
2 2
2 2
4
1
6_
6 - 6 5 9