Mitsubishi Electric MELSEC iQ-R C Series Programming Manual page 208

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 to M115
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
Relevant functions
• Page 198 mdOpen
• Page 190 mdClose
• Page 199 mdRandREx
3 DETAILS OF FUNCTION
206
3.3 MELSEC Data Link Functions
Description
Turns all the bits 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
16 Number of write points = 16
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 Turns all bit devices from M100 to M115 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:
Page 225 ERROR CODE LIST

Block 1: M100 to M115
Block 2: D10 to D13
Block 3: LCN100 to LCN101