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MELSEC-Q
11 INSTRUCTIONS AND FUNCTIONS
Since the DC control and the control by signals require specification using the lower
and higher bytes, it is convenient to use hexadecimal numbers as shown below.
%(1)=&H
Express the lower byte as
a 2-digit hexadecimal number.
Express the higher byte as
a 2-digit hexadecimal number.
• Specify the number of bytes for the receive buffer size in the following manner:
0
:
No receive buffer (data received before the execution of
a receive request is ignored.)
1 to 1024 bytes
:
Use receive buffer (1024 bytes are recommended).
• %(2) contains meaningless data as it is used by the system of BASIC.
When the communication parameters are set, all receive buffer memory is cleared and all
control signal statuses are initialized.
Содержание A1SD51S
Страница 183: ...11 13 11 13 MELSEC Q 11 INSTRUCTIONS AND FUNCTIONS RUN Before swap A 0 H924 A 1 H1159 After swap A 0 H1159 A 1 H924 OK...
Страница 331: ...11 161 11 161 MELSEC Q 11 INSTRUCTIONS AND FUNCTIONS REMARK See the CON ON OFF STOP and ZOPEN functions and Section 7 4...
Страница 557: ...11 387 11 387 MELSEC Q 11 INSTRUCTIONS AND FUNCTIONS REMARK See the CHR SPACE and SPC functions...
Страница 629: ...11 459 11 459 MELSEC Q 11 INSTRUCTIONS AND FUNCTIONS REMARK See the ZOPEN ZSEND and ZCNTL instructions and Section 7 3 4...
Страница 645: ...11 475 11 475 MELSEC Q 11 INSTRUCTIONS AND FUNCTIONS REMARK See the ZEVENT ZSIGNAL and DEF ZEVENT instructions...