Mitsubishi Electric MELSEC-Q Series User Manual page 190

(a) Control data
Device Item
(S1) + 0 Completion status
(S1) + 1 Station number
Access code
(S1) + 2
Attribute code
(S1) + 3 Buffer memory address
(S1) + 4 Number of read points
*1 For details, refer to the manual for the intelligent device station from which data are read.
*2 The value indicates the maximum number of read data.
Specify the value within the buffer memory capacity of the intelligent device station, or within the receive buffer area
setting range set by a parameter.
(b) Interlock signal storage device
Device Item
b15 to b8 b7
(S2) + 0
0
b15 to b8 b7
(S2) + 1
*1
RWr
b15
(S2) + 2
Completion mode
*1 The same error code as that for Completion status of the control data is stored in the error code storage device.
188
Stores the status when the instruction is complete.
0: No error (normal completion)
Value other than 0: Error code
Specify the station number of the intelligent device station.
Set "0004
Specify the start address of the buffer memory.
Specify the number of read data (in word units).
RY: Request device
to b0
RY
Set 0 to the upper eight bits.
RX: Completion device
to b0
Error code storage device
RWr:
RX
If the error code storage device does not exist, set
FF
0: The host station completes the process by checking
the contents of one device (RXn).
to b0
1: The host station completes the process by checking
the contents of two devices (RXn and RXn + 1).
(RXn + 1 turns on at an abnormal end.)
Setting data
".
H
Setting data
.
H
Setting
Set by
range

System
0 to 64 User
0004
User
H
*1 User
*2
User
1 to 480
Setting
Set by
range
0 to 127 User
0 User
0 to 127 User
0 to 15,
User
FF
H
0/1 User