Temporary relay: TR0 ~ TR7
Function: Used to hold the status of the branch point
Note: TR can not be reused in the same program.
In a program, the number of TR use is unlimited.
The same time as

LD 00001
OUT TR0
AND 00002
OUT TR1
AND 00003
OUT 01000
LD TR1
AND 00004
OUT 01001
LD TR0
AND 00005
OUT 01002

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