Communication
FPΣ User's Manual
224
EXAMPLE
Link relay L0 for station #1 turns to TRUE. The status change is fed back to the programs of
the other stations, and Y0 of the other stations is set to TRUE. A constant of 100 is written to
link register LD0 of station #1. The contents of LD0 in the other stations are also changed to a
constant of 100.
R0
L0 L0
Y0
L0
Y0 Y0
L0
LD 0 100
100LD 0
RS485
#1 #4#2 #3
#1
#4#2 #3
100LD 0 100LD 0
PLC Link connection between four FPΣ units
# Station number of PLC LD Link register
8.7.1 Setting Communication Parameters
Make the following settings for the communication port:
• communication mode (PLC Link)
• station number
• link area
For details on setting the communication parameters, see "
Communication Parameters" on
page
165. For details on setting the link area, see "Link Area Allocation" on page 225.
NOTE
• PLC Link is only available for COM port 1.
• For RS232C connections, the maximum number of stations is 2.
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