21-4
PPC Manual Revision 1
Chapter 21: Modbus/TCP Communication
21.2 TCP/IP-based Communication
(PPC5-1x02 Models)
socket()
socket()
bind()
listen()
accept()
connect()
send()
send()
recv()
recv()
close()
close()
PC
Initial Startup
Connection open
Command
Response
Connection
break
Initial Startup
PPC5 with
Ethernet
communication
Note
Host device
(PC)
Command
(PV readout)
Command
(PV readout)
Command
(PV readout)
Response
(PV)
Response
(PV)
PPC5-1x02
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