15 DATA COMMUNICATIONS USING USER FRAMES
15.5 Application Program for Data Transmission using a Combination that does not Specify the Start Frame
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Program example when setting using Engineering tool
The following shows the method to send data by specifying the send frame number with Engineering tool.
■Program example
For information on the module FB to be used, refer to the following manual.
MELSEC iQ-R Serial Communication Module Function Block Reference
Category Label name Description Device
Module label C24_1 Target module
C24_1.bSts_UnitReady Module READY X1E
C24_1.bSts_WatchdogTimerError Watchdog timer error X1F
C24_1.stnCH1.uSet_TransmissionDataCount_D CH1_Send data quantity designation U0\G1024
C24_1.wnForUserRegistrationNo8001H_D[0] For user registration number 8001H [0] U0\G6912
C24_1.wnForUserRegistrationNo8001H_D[1] For user registration number 8001H [1] U0\G6913
Label to be defined Define the global label as shown below.
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