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).
A
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