Delta AH500 Programming Manual page 672

AH 5 00 Pr ogr am m ing Ma n ua l
Remote IP
communication
address
Specific
IP Not equal to 0
address
8. If the TCP socket is opened, and no error occurs after the instruction is executed, the PLC is
connected to the remote device, and the flag related to the connection's being started is ON. If
the connection is successful, the flag related to the connection's being successful is ON, and
the flag related to the connection's being started is OFF. If an error occurs, the error flag is ON.
TCP socket
number
1
2
3
4
5
6
7
8
9. If the UDP socket is opened, and no error occurs after the instruction is executed, the flag
related to the connection's having been started is ON. If an error occurs, the error flag is ON.
UDP socket number
1
2
3
4
5
6
7
8
10. Generally, the pulse instruction SOPENP is used.
6 - 5 0 4
Local Remote
communication
port port
Not equal to 0
Being starting
the connection
SM1273
SM1281
SM1289
SM1297
SM1305
SM1313
SM1321
SM1329
Having started the connection
SM1334
SM1339
SM1344
SM1349
SM1354
SM1359
SM1364
SM1369
Description
1. The connection requests from the local
communication port, the remote
communication port, and the specific IP
address are received.
2. The data is sent to the specific IP
address through the remote
communication port.
3. The packet is received from the specific
IP address through the local
communication port.
Successful
connection
SM1270
SM1278
SM1286
SM1294
SM1302
SM1310
SM1318
SM1326
Error flag
SM1277
SM1285
SM1293
SM1301
SM1309
SM1317
SM1325
SM1333
Error flag
SM1338
SM1343
SM1348
SM1353
SM1358
SM1363
SM1368
SM1373