Mitsubishi Electric MELSEC-Q Series User Manual page 149

(b) Start device of the target station where data to be read is stored
If the device setting in PLC Parameter is different between the own and target
stations, use "(S2)" (with double-quotation marks) to specify.
(c) Start device of the own station where read data is stored
Specify the own station's start device (D1), within the available range so that the
read data can be stored.
(Example) When the area addressed D150 or higher of the own station CPU is
Good example
(D50 is specified in (D1).)
Own station CPU
D50
D149
D150
already used
Other station
D0
100 words
D99
D100
D150
D199
: Data to be read with READ instruction
: Area already used by own station's CPU
: Duplicated area
10 - 11
Chapter 10 DEDICATED INSTRUCTIONS
Bad example
(D100 is specified in (D1).)
Own station CPU Other station
100 words
D0
D99