Mitsubishi A1SD51S, Руководство по программированию

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MELSEC-Q
11 INSTRUCTIONS AND FUNCTIONS
Program Example
10 ' This program exchanges data between tasks via the message ports (TASK 1)
20 DEF ZEVENT 1 : ' Defines event 1
30 ZEVENT ENABLE 1 : ' Enables the generation of event 1
40 A$=SPACE$(80) : ' Stores dummy data in the character
variable
50 ZMESSAGE 1 LEN=80 : ' Defines message port 1
60 ZMESSAGE OPEN 1 : ' Opens message port 1
70 ZSIGNAL 1 : ' Generates event 1
80 ZMESSAGE PUT 1,"MESSAGE FOR TASK2" : ' Writes the message
90 ZMESSAGE CLOSE 1 : ' Closes message port 1
100 ZMESSAGE 2 LEN=80 : ' Defines message port 2
110 ZMESSAGE OPEN=2 : ' Opens message port 2
120 ZMESSAGE GET 2,A$ : ' Reads the message
130 ZMESSAGE CLOSE 2 : ' Closes message port 2
140 PRINT A$ : ' Displays the result
150 ZMESSAGE KILL 1 : ' Erases message port 1
160 ZMESSAGE KILL 2 : ' Erases message port 2
170 END
10 ' This program exchanges data between tasks via the message ports (TASK 2)
20 ZWAIT EVENT 1 : ' Waits for the generation of event 1
30 B$=SPACE$(80) : ' Stores dummy data in the character
variable
40 ZMESSAGE OPEN 1 : ' Opens message port 1
50 ZMESSAGE GET 1,B$ : ' Reads the message
60 ZMESSAGE CLOSE 1 : ' Closes message port 1
70 ZMESSAGE OPEN=2 : ' Opens message port 2
80 ZMESSAGE PUT 2,"MESSAGE FOR TASK1" : ' Writes the message
90 ZMESSAGE CLOSE 2 : ' Closes message port 2
100 LOCATE 0,1 : ' Changes the display position
110 PRINT B$ : ' Displays the result
120 END
REMARK
• See Sections 8.2 and 8.4, as well as the ZURGENCY instruction for details about
the program priority.
• See the ZMESSAGE CLOSE, ZMESSAGE GET, ZMESSAGE KILL, ZMESSAGE
OPEN and ZMESSAGE PUT instructions, and Section 8.5.2.