Delta AS Series Programming Manual page 1083

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10. If data is sent through a TCP socket, and no error occurs after the instruction is executed, the socket starts to
establish the connection with the remote device and the flag for starting connection is ON. If the connection is
made successfully, the flag for successful connection is ON, and the flag for starting connection is OFF. If an error
occurs, the error flag is ON.
TCP
Socket
Number
1
2
3
4
11. If data is transmitted through a UDP socket, and no error occurs after the instruction is executed, the flag for
started connection is ON. If an error occurs, the error flag is ON.
UDP Socket
Number
1
2
_6 _6
3
4
12. If data is transmitted through a TCP Socket in Server mode or through a UDP Socket, it is not allowed to use the
following communication port number for AS series PLC.
13. In general, the pulse SOPENP instruction is used.
6 - 8 0 4
Connection Data
Started Received
SM1270 SM1271
SM1278 SM1279
SM1286 SM1287
SM1294 SM1295
Connection
Data Received
Started
SM1334
SM1339
SM1344
SM1349
Socket Type
TCP
TCP
TCP
UDP
UDP
UDP
UDP
Connection
Data Sent
Starting
SM1272 SM1273
SM1280 SM1281
SM1288 SM1289
SM1296 SM1297
Data Sending
SM1335 SM1336
SM1340 SM1341
SM1345 SM1346
SM1350 SM1351
Communication Port Number
80
502
44818
68
2222
44818
20006
Connection
Data
Error Flag
Sending
Closed
SM1274 SM1275
SM1282 SM1283
SM1290 SM1291
SM1298 SM1299
Connection
Error Flag
Closed
SM1337 SM1338
SM1342 SM1343
SM1347 SM1348
SM1352 SM1353
Communication Protocol
HTTP
MODBUS TCP
EtherNet/IP
DHCP/BOOTP
EtherNet/IP
EtherNet/IP
Self-defined protocol for AS series
SM1277
SM1285
SM1293
SM1301