Marathon Computer UNIPRO V3.5 - Manual (Page 154)

Programming
Unipro3.5
Rev. 11.00
December 30, 1995
H (TEMPS) A limit statement
here will cause the program to wait
for the measured temperature to
come to within +10 F (or +10 C) of
the specified Setpoint. If this does
not occur within the specified limit
time, a limit time-out alarm will
occur. If no limit statement is
used, the Programmer simply sets
the specified Setpoint and goes on
to the next step. The maximum
time that a limit statement will
accept is 40 hours. Use the
Programmer Status Display during
a wait operation to reveal the time
left before a limit time-out alarm
will occur.
Branch Statements
Branch statements are best utilized when placed after inquiry
statements. If neither a branch nor a limit statement is placed
after an inquiry the Programmer will sit at the inquiry line
indefinitely. A branch statement can immediately follow an
inquiry or it can placed after the limit statement, for example:
INQUIRY or INQUIRY
BRANCH LIMIT
BRANCH
The effect of a branch after an inquiry is to jump to a specific
line in the program based upon the outcome of the inquiry.
The format of the branch OPCODE is b TT.FF; therefore if
the outcome is true the program jumps to the step number
listed first. Whereas , if the outcome is false, the program
jumps to the second step.