刚学S7200，编写了一个小程序，在Step7中编译没问题，但在写到PLC中时说有非法指令，错误号是82。程序如下：
LD I0.2
A I0.4
AN M10.1
AN M10.2
AN M10.3
AN M10.4
AN M10.5
AN M10.6
AN M10.7
AN M11.0
AN M11.1
= M10.0
LD I0.4
A M11.1
O I0.5
= M10.0
= M11.1
LD M10.0
A I0.0
LD M10.1
A I0.1
OLD
LD M10.2
A T37
OLD
LD M10.3
A I0.3
OLD
LD M10.4
A I0.1
OLD
LD M10.5
A I0.2
OLD
LD M10.6
A I0.3
OLD
SHRB M10.0, M10.1, 7
LD M10.0
= Q0.5
LD M10.1
O M10.5
= Q0.0
LD M10.2
S M20.0, 1
TON T37, +15
LD M20.0
A I0.3
OLD
LD M10.4
A I0.1
OLD
LD M10.5
A I0.2
OLD
LD M10.6
A I0.3
哪位大虾能帮指点一二，不胜感激!