(3)Data transmission between master PC and slave PC

Providing synchronous transfer gives positive data communication.

[An example of synchronized transfer by OUT instruction]

Master station (PC00)

 

 

Slave station (PC01)

0200

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0200

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0203

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0203

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Send

: Receive

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Program in master station

 

 

 

 

 

Program in slave station

00000

F–44

02030

02000

02000

02030

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

02000

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.

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