Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 14

5.2.7 Example of parameter settings ....................................................................................................... 5- 13
5.3 Common Parameters (Network Range Assignment Screen) .............................................................. 5- 14
5.3.1 Send range for each station (LB/LW settings) ............................................................................... 5- 14
5.3.2 Send range for each station (LX/LY settings) ................................................................................ 5- 15
5.3.3 Specification of the I/O master station ............................................................................................ 5- 16
5.3.4 Specification of the reserved station ............................................................................................... 5- 16
5.3.5 Pairing setting .................................................................................................................................. 5- 16
5.4 Supplementary Settings ......................................................................................................................... 5- 17
5.5 Control Station Return Setting ............................................................................................................... 5- 20
5.6 Station Inherent Parameters (High Performance model QCPU, Process CPU, Redundant CPU,
and Universal model QCPU) ................................................................................................................. 5- 21
5.7 Refresh Parameters ............................................................................................................................... 5- 25
5.7.1 Concept of the link refreshing ......................................................................................................... 5- 28
5.7.2 How to set the refresh parameters ................................................................................................. 5- 30
5.8 Valid Module During Other Station Access ........................................................................................... 5- 39
5.9 Standby Station Compatible Module (High Performance model QCPU and Process CPU) .............. 5- 40
5.10 Writing Parameters to the CPU ........................................................................................................... 5- 42
6 PROGRAMMING
6.1 Programming Precautions ..................................................................................................................... 6-
6.1.1 Interlock related signals .................................................................................................................. 6-
6.1.2 Program example ............................................................................................................................ 6-
6.2 Cyclic Transmission ............................................................................................................................... 6-
6.2.1 32-bit data assurance ...................................................................................................................... 6-
6.2.2 Station-based block data assurance for cyclic data ....................................................................... 6-
6.2.3 Interlock program example ............................................................................................................. 6-
6.3 Link Dedicated Instruction List ............................................................................................................... 6-
6.4 Using the Link Special Relays (SB)/Link Special Registers (SW) ....................................................... 6- 13
7 APPLICATION FUNCTIONS
7.1 Direct Access to the Link Devices ......................................................................................................... 7-
7.2 Inter-Link Data Transfer Function (High Performance model QCPU, Process CPU,
Redundant CPU, and Universal model QCPU) .................................................................................... 7-
7.3 Low-Speed Cyclic Transmission Function (High Performance model QCPU, Process CPU,
Redundant CPU, and Universal model QCPU) .................................................................................... 7-
7.3.1 Send range settings ........................................................................................................................ 7- 10
7.3.2 Send timing ...................................................................................................................................... 7- 11
7.3.3 Startup ............................................................................................................................................. 7- 14
7.4 Transient Transmission Function (Non-Periodical Communication) .................................................... 7- 16
7.4.1 Communication function.................................................................................................................. 7- 17
7.4.2 Routing function ............................................................................................................................... 7- 20
7.4.3 Group function ................................................................................................................................. 7- 27
7.4.4 Message sending function using the logical channel numbers ..................................................... 7- 28
7.4.5 Programming ................................................................................................................................... 7- 30
7.4.5 (1) Data sending/receiving (JP/GP.SEND, JP/GP.RECV) ............................................................ 7- 36
7.4.5 (2) Reading from/writing to word devices of other stations (JP/GP.READ, JP/GP.SREAD,
JP/GP.WRITE, JP/GP.SWRITE) .................................................................................................... 7- 53
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