Mitsubishi Electric MELSEC iQ-R C Programming Manual page 166

■Example
The following tables show the examples of values specified to the randomly selected device (plDev) and the write data
storage destination (psBuf), and the number of bytes of write data.
Device to be written randomly
M100
D10 to D13
LCN100 to LCN101
Values specified to the randomly selected device (plDev)
plDev
plDev[0]
plDev[1]
plDev[2]
plDev[3]
plDev[4]
plDev[5]
plDev[6]
plDev[7]
plDev[8]
plDev[9]
Values specified to the write data storage destination (psBuf)
psBuf
psBuf[0]
psBuf[1]
psBuf[2]
psBuf[3]
psBuf[4]
psBuf[5]
psBuf[6]
psBuf[7]
psBuf[8]
Number of bytes of write data
(psBuf[0] to psBuf[8] = 9)  2 = 18
■Return value
Return value
0 (0000H)
Other than 0
*1 For a return value which does not exist in the reference, refer to the manual for the programmable controller CPU. (MELSEC iQ-R
CPU Module User's Manual (Application))
■Relevant functions
• Page 154 mdOpen
• Page 146 mdClose
• Page 150 mdGetLabelInfo
• Page 158 mdRandRLabelEx
3 DETAILS OF FUNCTION
164
3.2 MELSEC Data Link Functions
Description
Turns the bit OFF.
Stores 10 in D10, 200 in D11, 300 in D12, and 400 in D13.
Stores 0x1 in LCN100, and 0x10000 in LCN101.
Specified value Description
3 Number of blocks = 3
DevM Device type = M
100 Start device number = 100
1 Number of write points = 1
DevD Device type = D
10 Start device number = 10
4 Number of write points = 4
DevLCN Device type = LCN
100 Start device number = 100
2 Number of write points = 2
Specified value Description
0 M100 = OFF
10 D10 = 10
200 D11 = 200
300 D12 = 300
400 D13 = 400
0x0001 Lower bit of LCN100
0x0000 Upper bit of LCN100
0x0000 Lower bit of LCN101
0x0001 Upper bit of LCN101
Description
Normal
Error
For details on the error, refer to the following chapter.
Page 174 ERROR CODE LIST

Block 1: M100
Block 2: D10 to D13
Block 3: LCN100 to LCN101
*1