The default receive complete code is CR+LF (0DH, 0AH). The default received data count is 511 words. Hence, at their defaults, Reception data read request signal X3/XA turns ON with the timing with which CR+LF is received or 511 words are received.
Change the setting of the receive complete code using any one of the following methods.
1. Using GX Works2
Set "Various Control Specifications" of the intelligent function module utility.
2. Using GX Configurator-SC
Make "CH1/CH2 Non procedure system setting".
3. Using a sequence program:
Create a program in which a TO instruction writes 0AH (LF) into the buffer memory address A5H/145H on the rising edge of X1E.