Delta AS Series Programming Manual page 942

Example 3
The mode in D is 2 (the data received ends with a specific character.) and you set the mode of sending and receiving
2
data to 8-bit mode (SM106=ON).
1. Set the length of the data to be sent: D20=0, meaning the PLC will not send data but only receives data.
2. Set D10=16#0002 (mode: 2), D11=16#000A (the ending character is 16#0A).
3. Enable the contact X0.0.
4. The PLC waits to receive data from the external equipment. D20=0 means that the PLC does not send data to the
external equipment.
5. The external equipment sends data to the PLC.
External equipment → PLC 31 32 33 34 35 0A.
6. D200=6 (number the data received), the content of data received: D201=16#0031, D202=16#0032,
D203=16#0033, D201=16#0034, D202=16#0035, D203=16#000A
7. SM100=ON: reception of data is complete.
8. To send more data, set the flag SM100 to OFF to start the operation again.
NOTE: When the sending of data is complete, the receiving flag SM98 is ON and then the PLC starts receiving data until
receiving the ending character (16#0A). When the reception of data is complete, SM100 is ON. If the
communication timeout occurs but the ending character (16#0A) is still not received, the communication timeout
flag SM104 is ON.
Cha p ter 6 App l ied Ins truc tio ns
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6 - 6 6 3