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5. NON PROCEDURE PROTOCOL COMMUNICATIONS
MELSEC QnA
5.4
Non Procedure Protocol Setting Items
The following describes the buffer memory and I/O signal items which are set durlng the non
procedure protocol data communications described in this guidebook. (CHI only)
(See Appendixes 1 and 2 for the QC24 buffer memories table and I/O signals table.)
5.4.1
Buffer memory setting
The following table lists the buffer memories used with the non procedure protocol.
21DH (541)
21 EH (542)
220H (544)
0
ROM registered count
System
Receive user frame No.
'
0
(Not
25BH
(603)
0
(No errors)
Data reception result
258H (600)
0
(No errors]
Data transmission result
257H
(599)
0
EEPROM system set?ings wrrte result
setting
400H (1 024)
Send area
Send data count
0
401 H (1
025)
(user frame
No.
-Send data (storage)
5FFH (1535)
send/
600H (1 536)
receive
Receive data
count
(read data
count)
0
601 H (1 537)
Receive area
Receive data (storage)
I
received)
to
51
1
words
'
0
8000H)
CHI
to
51 1 words
1
0
5 - 5
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