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2 SYSTEM CONFIGURATION
MELSEC-QnA
2
2. SYSTEM CONFIGURATION
The system configuration for the CC-Link is described in this chapter.
2.1 Total Configuration
A total of 64 remote I/O stations, remote device stations, or local stations can be
connected for one master station.
However, the following conditions must be satisfied:
(1) {(1×a)+(2×b)+(3×c)+(4×d)} 64
a : Number of modules occupying 1 station c : Number of modules occupying 3 stations
b : Number of modules occupying 2 stations d : Number of modules occupying 4 stations
(2) {(16×A)+(54×B)+(88×C)} 2304
A : Number of remote I/O stations 64
B : Number of remote device stations 42
C : Number of local stations, standby master stations, intelligent device stations 26
CC-Link dedicated cable
CC-Link dedicated cable
Maximum 26
Terminating resistor
(mandatory)
A1SJ61QBT11
AJ61QBT11
A1SJ61QBT11
AJ61QBT11
Master station
A1SJ61BT11
AJ61BT11
Local station Local station
Maximum 64
Total 64
Remote I/O stationRemote device stationIntelligent device station
RS-232C
Interface module
AJ65BT-R2N
Analog-digital
conversion module
AJ65BT-64AD
AJ65BTB -
AJ65BTC -
Remote I/O module
Maximum 42Maximum 26
Terminating resistor
(mandatory)