Mitsubishi Electric MELSEC iQ-RJ71C24-R4 - Page 311

15 DATA COMMUNICATIONS USING USER FRAMES
15.3 Program for Data Reception with User Frame
309
15
■When receiving with a combination of the start frame and arbitrary data (method 1 dedicated
receive end data quantity) (reception using Method 1)
15H 22H 00H
X3
M0
M1
(0022)
ON
ON
2H
3E8H
3E9H
6H
15H
41BH
0H
0H
0H
0H
4H
00H,02H
1002H/0H
0H
1H
0H
0H
0H
2H
1H
0H
(0022H)
00H,22H
INPUT
N
A
K
Ò
Ó
Ô
Õ
Receive data count
Head data
Word units
Number of receive byte excluding frame and additional code (2)/2=1
Byte units
Number of received bytes excluding frame and additional code (2)
Target
device
The following diagram is for byte unit.
User frame use enable/
disable designation
Un\G173
Arbitrary data
CPU module
First frame No. designation
Un\G174
(1st)
First frame
(Corresponds to
registration No. 15H)
Un\G175
(2nd)
Reception data
read request
Un\G176
(3rd)
Un\G177
(Each 4th designated frame)
CPU module
(4th)
Last frame No. designation
Un\G178
(1st)
Completion
device
(None)
Un\G179
(2nd)
Abnormal
completion
Status display
device
at completion
(None)
Un\G180
(3rd)
Normal
completion
(None)
Un\G181
(4th)
1 Scan
(YES) (NO) Receive transparent
code designation
Un\G288
(Disable) ASCII-BIN conversion
designation
Un\G289
Receive user
frame( th)
Un\G603
to D0
Un\G1536
Receive data count to D3
Receive data
(arbitrary data portion)
Un\G1537
to D10
User frame receiving
format designation
Un\G8224
(1st = format-0)
Un\G8225
(2nd = format-0)
Un\G8226
(3rd = format-1)
Un\G8227
(4th = format-1)
Received data count for format 1 only
(2nd
(3rd)
(4th)
Buffer memory
(1st)
Un\G8228
Un\G8229
Un\G8230
Un\G8231