Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 294

7 APPLICATION FUNCTIONS
MELSEC-Q
1) Program for station number 1 (READ instruction)
When actually using the following program, provide interlocks in the
program referring to Section 6.1.
(When reading the data in D10 to D14 of station number 4 to D200 to
D204 of station number 1)
(When reading the data in SD0 (diagnostic error) of station number 4
to D210 of station number 1)
7 - 70 7 - 70