Plc Link - Panasonic FPS Series User Manual

FPΣ User's Manual

8.7 PLC Link

PLC Link is an economic way of linking PLCs using a twisted-pair cable and the MEWNET
protocol. Data is shared with all PLCs by means of dedicated internal relays called link relays
(L) and data registers called link registers (LD). The statuses of the link relays and link
registers of one PLC are automatically fed back to the other PLCs on the same network. The
link relays and link registers of the PLCs contain areas for sending and areas for receiving
data. Station numbers and link areas are allocated using the system registers.
#1
#1
#2
#3
Sharing of data in a PLC link using dedicated send and receive areas
Send area
#2
#1
#2
#3
RS485
Receive area
#3
#1
#2
#3
# Station number of PLC
8.7 PLC Link
#4
223