10
DEVICE EXPLANATION
10
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10.2 Internal User Devices
10.2.8 Link special relay (SB)
Remark
For details of the link special relays, refer to the manual of the intelligent function
module having link special relays.
Table10.6 Number of link special relay points of each CPU module (continued)
CPU module
Number of link special relay points
Universal model QCPU
2048 points (SB0 to 7FF)
However, this setting can be changed in the device setting of
the PLC parameter dialog box. (Section 10.1(2))
For the intelligent function module, such as the CC-Link IE
controller network module and MELSECNET/H network
module, having link special relays, 512 points are assigned.
Assigning the link special relay as shown below enables
refreshing of the CC-Link link special relay (SB) for the link
special relay (SB) of the CPU module.
SB200
SB3FF
SB400
SB5FF
SB600
SB9FF
SB0
SB1FF
512
points
512
points
512
points
512
points
2560
points
For 1st network module
For 2nd network module
For 3rd network module
For 4th network module
Link special relay
For 1st CC-link module
512
points
SB7FF
SB800