
Index
port numbers, 99
TCP status, 199
TCP sockets, 184
number, 117 status, 199
UDP socket number, 117
UDP sockets, 166
Software switch field, 23
specifications FTP server, 68
mail receive function, 36 mail send function, 17
SRES, 139
static electricity, xxiv
precautions, xxv
STD field, 41 switches
Socket Service Request Switches, 119
T
TCP Active Open Request Switch, 119 TCP communications
comparison with UDP, 100 data fragmentation, 102 precautions, 102 programming example, 127, 141 socket services
parameters, 116 sockets, 100
status, 199 status transitions, 199
TCP Passive Open Request Switch, 119
terminal blocks, xxiii
Test command, 36 command/response format, 58
Test field, 42
timers, 195
timing
socket communications, 139 socket services, 139
transmission delays, 157, 192
socket services, 157
Trigger No. field, 22
Trigger type field, 20
triggers, 13, 17, 18, 23
conditions, 13
TXT field, 41
TXT format, 15, 26, 61 type command, 68, 73, 76
U
UDP communications comparison with TCP, 100 data fragmentation, 102 precautions, 102 programming example, 131, 149 socket services
parameters, 116
UDP Open Request Switch, 119
UDP/IP communications, 4
UMBackup command, 2, 36 command/response format, 47
UMBackup field, 41
UNIX
application examples, 86 socket port numbers, 99
Use POP before SMTP field, 5, 19, 39 user command, 68, 73, 74
user name specifying, 74
W
Word value change field, 23
WRITE DATA FILE (FWRIT) instruction, 26, 60