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(3) Data transmission between master PC and slave PC
Providing synchronous transfer gives positive data communication.
[An example of synchronized transfer by OUT instruction]
• 00000 is turned “ON” at the master station side. (OUT 02000 is a self-holding circuit.)
• When 02000 is turned “ON” at the slave station side, OUT 02030 is also turned “ON.” This is sent
back to the master station side.
0200
0203
0200
0203
Master station (PC00) Slave station (PC01)
Send : Receive
00000 F–44 02030 02000
02000
02000 02030
Program in master station
Program in slave station