我有两台224XP PLC想用一台PLC I0.2和I0.3控制对方的Q0.0和Q0.1和通断，一直通讯不上，请各位大神帮我分析下，两台PLC用DB9针的插头连接，端子号3对3,8对8
PLC1

主程序
LD SM0.1
CALL SBR_0:SBR0
LD SM0.0
CALL SBR_1:SBR1
MOVB SMB86, VB600
LDB= SMB86, 0
TON T40, 10
LD T40
STOP

子程序0
LD SM0.0
MOVB 16#09, SMB30
MOVB 16#B0, SMB87
MOVB 16#0D, SMB89
MOVB 5, SMB90
MOVB 14, SMB94

LD SM0.0
MOVB 50, SMB34
ATCH INT_0:INT0, 10
ATCH INT_1:INT1, 9
ATCH INT_2:INT2, 23

子程序1
LD I0.0
EU
AN M10.1
S M10.0, 1
LD M10.0
TON T38, 50
LD T38
S M10.1, 1
R M10.0, 1
LD I0.1
EU
R M10.0, 2
LD V201.0
= Q0.2
LD V201.1
= Q0.3

中断0

LD SM0.0
MOVB 2, VB100
MOVB MB10, VB101
MOVB 16#0D, VB102
XMT VB100, 0

中断1

LD SM0.0
DTCH 10
RCV VB200, 0

中断2

LD SM0.0
ATCH INT_0:INT0, 10


PLC 2

主程序
LD SM0.1
CALL SBR_0:SBR0

LD SM0.0
CALL SBR_1:SBR1

子程序0

LD SM0.0
MOVB 16#09, SMB30
MOVB 16#B0, SMB87
MOVB 16#0D, SMB89
MOVB 5, SMB90
MOVB 14, SMB94

LD SM0.0
ATCH INT_1:INT1, 9
ATCH INT_2:INT2, 23
ENI
RCV VB200, 0

子程序1

LD I0.2
EU
AN M0.1
S M10.0, 1

LD M0.0
TON T38, 60

LD T38
S M10.1, 1
R M10.0, 1

LD I0.3
EU
R M10.0, 2

LD V201.0
= Q0.0

LD V201.1
= Q0.1

中断程序0

LD SM0.1
MOVB 16#C0, SMB87

LD SM0.0
INCB VB500
MOVB 50, SMB34
ATCH INT_2:INT2, 10

中断程序1

LD SM0.1
MOVB 16#B0, SMB87

LD SM0.0
RCV VB200, 0
INCB VB501

中断程序2

LD SM0.0
MOVB 2, VB100
MOVB MB10, VB101
MOVB 16#0D, VB102
XMT VB100, 0
DTCH 10