Mitsubishi Electric MELDAS C6 Programming Manual page 328

Function
RIRD
Reads the device data from the designated station CPU.
(1) Control data
Device Item
(S) + 0 Completion status
(S) + 1 Station number
(S) + 2 Access code
Attribute code
(S) + 3 Device number
(S) + 4 Number of points
to read
*1: User : Data to be set by user before executing exclusive command.
System : The results of the exclusive command executed is stored by the sequencer CPU.
*2: See the manual for the local station or the intelligent device station from which data will be
read.
*3: Indicates the maximum number of data items that can be read.
*4: When the counterpart PLC CPU is other than QCPU (Q mode)/ QCPU (A mode)/ QnACPU/
AnUCPU and reads the PLC CPU device, the setting range will be 1 to 32 words.
(2) Device memory in the PLC CPU
Device contents
Input relay
Output relay
Internal relay
Latch relay
Link relay
Timer (contact)
Timer (coil)
Timer (present value)
Retentive timer (contact)
Retentive timer (coil)
Retentive timer (present value)
Counter (contact)
Counter (coil)
Counter (present value)
Data register
Link register
File register
Special link relay
Special link register
Special relay
Special register
(Note) Devices other than shown above cannot be accessed.
When accessing a bit device, specify it with 0 or a multiple of 16.
9. Exclusive Commands 1
RIRD, RIWT
Set data
Stores the status when the command is complete.
0 : No error (normal completion)
Other than 0 : Error code
Designate the station numbers of the local station
and intelligent device station.
b15 b8 b7
Access code
Designate device start number.
Designate the read data count (in word units).
Device type
Name
Bit Word
X
Y
M
L
B
T
T
T
T
T
T
C
C
C
D
W
R
SB
SW
SM
SD
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Setting
range
0 to 64
b0
See (1)
and (2).
Attribute code
1 to 480 *
1 to 32 *
Unit Access code
Hexadecimal 01 H
Hexadecimal 02 H
Decimal 03 H
Decimal 83 H
Hexadecimal 23 H
Decimal 09 H
Decimal 0A H
Decimal 0C H
Decimal 89 H
Decimal 8A H
Decimal 8C H
Decimal 11 H
Decimal 12 H
Decimal 14 H
Decimal 04 H
Hexadecimal 24 H
Decimal 84 H
Hexadecimal 63 H
Hexadecimal 64 H
Decimal 43 H
Decimal 44 H
Set by
(*1)
— System
User
User
2
User
*
3
User
4
Attribute
code
05 H