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Program switching, Siemens plc, Description of the reference program – KEYENCE IV Series User Manual

Page 104: Description of the reference program ... a-10

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- IV Series User’s Manual (Field Network) -

Reference program (PROFINET)

Program switching

Siemens PLC

Network1

Network2

P

P

MOV

EN

IN

Program Number

ENO

OUT

Number

REQ

REQ

Program Change

Program Change

Program Change Ack

z

„

Description of the reference program

z

z

Network1

This line sets “REQ” to ON and copies the Number data, which contains the program No. to be set, to the
program No.

z

z

Network2

Sets “REQ” to ON and executes “Program Change”.
“Program Change Ack” ON will set “Program Change” to OFF (“Program Change” will be retained until
“Program Change Ack” becomes ON).

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