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3. PROCEDURE UP TO DATA
COMMUNICATIONS DESCRIBED IN THIS GUIDEBOOK MELSEC
QnA
3.5
LooDback Test
1000
1010
1 c 2 c
1C30
1
,s
4
c
1
'2 5 '3
1 6
1 7
3
1C8C
1
'3
9
'2
1100
1;13
1123
1133
1140
1153
1150
1170
1180
1190
1200
1210
1220
1230
1240
1250
1260
1270
1280
1290
13120
1310
1320
1330
1310
1350
1360
1370
1380
1390
1400
1410
1420
1430
The loopback test function uses dedicated protocol format dedicated commands to check the
external device and QC24 communication functions.
The external device sends data to the QC24 and the QC24 returns the received data to the
external device as is.
The loopback test checks if the data sent from the external device and the data returned from the
QC24 are the same.
3.5.1
LooDback test Droclram
LOCAT? 1 , 2 0
:
INFLT
"Retransmit (YiN)
? "
;
Y$
I? Y $ = " Y " THEN
* S O U S I I J
CLOSE
END
*
BASIC commands must be changed according to BASIC software.
3 - 9
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