Specifications

3-2
3.2 System Configuration
3.2.1 Configuration example
(1) PLC side
Mount the "AJ61BT11", "A1SJ61BT", "AJ61QBT11" or "A1SJ61QBT" Control &
Communication Link system master/local unit on the main base unit or extension base
unit of the PLC CPU that will act as the master station.
(2) Wiring
Connect the PLC CC-Link unit master station and MR-J2S-T01 CC-Link interface
units by twisted pair cables (three-wire type).
(3) When CPU having automatic refresh function is used (example: QnA series CPU)
Transfer of data to/from the corresponding devices by sequence ladders makes them
refreshed automatically by the refresh buffer of the master station at execution of an
END instruction to make communications with the remote devices.
(4) When CPU not having automatic refresh function is used (example: AnA series CPU)
Transfer of data to/from the refresh buffer of the master station directly by sequence
ladders makes communications with the remote devices.