Delta AH500 - Page 672

AH500 Programming Manual
6-504
Remote IP
address
Local
communication
port
Remote
communication
port
Description
Specific
IP
address
Not equal to 0 Not equal to 0
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.
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
Being starting
the connection
Successful
connection
Error flag
1
SM1273
SM1270
SM1277
2
SM1281
SM1278
SM1285
3
SM1289
SM1286
SM1293
4
SM1297
SM1294
SM1301
5
SM1305
SM1302
SM1309
6
SM1313
SM1310
SM1317
7
SM1321
SM1318
SM1325
8
SM1329
SM1326
SM1333
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
Having started the connection
Error flag
1
SM1334
SM1338
2
SM1339
SM1343
3
SM1344
SM1348
4
SM1349
SM1353
5
SM1354
SM1358
6
SM1359
SM1363
7
SM1364
SM1368
8
SM1369
SM1373
10. Generally, the pulse instruction SOPENP is used.