Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual page 95

(0) The refresh processing of the module label is performed. (The processing is required for when using the module function block.)
When the refresh processing is completed, 'bRunRefresh' (M0) is turned on.
(98) When 'bStartRecv' (M9) is turned on, the data sent from the sending side is received and stored in 'uRecvData' (D2000).
(The device range in which data is stored varies depending on the data length of the received data.)
When the data receive is completed successfully, 'bRecv_OK' (M11) is turned on.
• Secure sufficient device areas according to the maximum length of data sent from the send source to
prevent the device areas used for other purposes from being overwritten by the receive data.
• When the data receive is consecutively executed, turn on pbi_bReadTiming (read timing) as shown in the
above program.
• To receive data at shorter intervals than the scan time of the CPU module, add the normally closed contact
of 'bRecv_OK' (M11) and 'bRecv_NG' (M12) to the execution conditions of FB for receiving as shown in the
above program. When there is no normally closed contact of 'bRecv_OK' (M11) and 'bRecv_NG' (M12),
'bStartRecvFB' (M17) is not turned off and on and the FB for receiving may not be executed.
1 FUNCTIONS
1.5 Communications Using the Fixed Buffer
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