Sharp JW-20CM - Manual (Page 101)

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(2) Register link function
Mainly used for sending and receiving numerical data.
[Example] In the case of sending 1 byte data from a master station and slave station 01 and 02.
• The register link area of the sending station may be used as D (Destination) side of the application
instruction of the PC program.
• The register link area of the receiving station may be used as S (Source) side of the application
instruction of the PC program.
Register
Register
Destination side
Register
Register
Register
Register