这是我之前看了前面帖子后编的测试程序，100个数据块，db200-db299，都是通过sfc22建的共享数据块，FB也很简单，就是通过一个上升沿将一个MD给到另一个MD，仅供参考
L 200
T MW 0
L L#1000
SLD 3
T MD 4
L L#2000
SLD 3
T MD 8
L L#400
SLD 3
T MD 12

L 100
go: T MW 2
OPN DI [MW 0]
L P#DBX 0.0
LAR2

L MD [MD 4]
T DID [AR2,P#0.0]
A M [MD 12]
= DIX [AR2,P#8.0]
L MD 12
+ 1
T MD 12
A M [MD 12]
= DIX [AR2,P#8.1]
L MD 12
+ -1
T MD 12
UC "test_UC"
L DID [AR2,P#4.0]
T MD [MD 8]
A DIX [AR2,P#8.0]
= M [MD 12]
L MD 12
+ 1
T MD 12
A DIX [AR2,P#8.1]
= M [MD 12]
L MD 12
+ -1
T MD 12

L MD 4
L P#4.0
+D
T MD 4
L MD 8
L P#4.0
+D
T MD 8
L MD 12
L P#1.0
+D
T MD 12
L MW 0
+ 1
T MW 0
L MW 2
LOOP go