Mitsubishi Electric MELSEC iQ-RJ71C24-R2 - Page 273

14 ON-DEMAND DATA COMMUNICATIONS USING USER FRAMES
14.3 On-Demand Function Control Procedure During User Frame Use
271
14
03H 44H 32H
HL
30H 30H 31H 32H 33H 34H 35H 36H 37H 38H46H46H30H30H30H30H39H46H02H
00 12345678FF00009F
00HFFH,FFH00H00HF9H02H
S
T
X
0
C00H
2
0
1234H
5678H
02H
3EBH
401H
0H
Added by C24
First frame (1st)
Target device
First frame (2nd)
Last frame (1st)
User
frame
User frame Send data
(Data name)
User frame
registration code
CPU module
Sum
check
Code
Send data corresponding to
registration code
(Example)
Send data code
ONDEMAND command
ONDEMAND command complete bit
ONDEMAND command abnormal
complete bit
1Scan
Buffer memory
Un\G150
(Word units)
(First address)
Un\G160
(Data length)
Un\G161
(1st first frame No.)
Un\G169
(2nd first frame No.)
Un\G170
(1st last frame No.)
Un\G171
Un\G172
(2nd last frame No.)
When a transmission error is
generated,
other than 0 is stored.
(Result of execution)
Un\G598
Sequentially transmits the data in 4-bit units,
beginning
from the most significant bit.
Un\G3072
(Send data)
Un\G3073
(CH1 side)