本人测试了一段使用自由口进行通讯的程序,发现程序接收的数据和我使用串口监控软件捕捉到的数据不一样,比如发送ASCII码@011R01000:69'CR'应该接收@011R000410:71'CR'的,但是通过PLC接收就是乱码,请高手指教,程序如下:
MAIN
NETWORK1
LD SM0.1
CALL SBR_0

SBR_0
NETWORK1
LD SM0.1
MOVB 16#69, SMB130
NETWORK2
LD SM0.0
MOVB 14, VB320
MOVB 16#40, VB321
MOVB 16#30, VB322
MOVB 16#31, VB323
MOVB 16#31, VB324
MOVB 16#52, VB325
MOVB 16#30, VB326
MOVB 16#31, VB327
MOVB 16#30, VB328
MOVB 16#30, VB329
MOVB 16#30, VB330
MOVB 16#3A, VB331
MOVB 16#36, VB332
MOVB 16#39, VB333
MOVB 16#0D, VB334
NETWORK3
LD SM0.1
MOVB 250, SMB34
ATCH INT_0, 10
ATCH INT_1, 26
ENI

INT_0
NETWORK1
LD SM0.5
EU
MOVD &VB340, VD50
ATCH INT_1, 26
XMT VB320, 1

INT_1
NETWORK1
LD SM0.0
MOVB SMB2, *VD50
INCD VD50

NETWORK2
LDB= SMB2, 16#0D //当接收的字符是回车时
MOVD &VB340, VD50 //重新装载地址指针
ATCH INT_0, 10
CRETI
程序如上所述,请高手指教!