User`s manual

186
4.2 Interrupt Program Startup Timing
The following explains the startup timing for interrupt program when performing data reception with an interrupt
program during communication using the non procedure protocol or bidirectional protocol.
(1) The startup timing is the same for communication using either the non
procedure protocol or bidirectional protocol.
(2) Receive data from the external device is stored in the reception area of the
buffer memory. When the next input signal rises, the interrupt program is
started.
Input signal name CH1 CH2
CHn reception data read request signal X3 XA
CHn reception abnormal detection signal X4 XB