Reference Manual

Turbo PMAC/PMAC2 Software Reference

Turbo PMAC On-line Command Specification 279

 The \ quick-stop command is given, which causes Turbo PMAC to come to the quickest possible

stop in the lookahead buffer.

 The > resume-forward, R run, or S step command is given, which causes Turbo PMAC to resume

normal forward execution of the program, adding to the lookahead buffer as necessary.

 An error condition occurs, or a non-recoverable stopping command is given.

If any motor has been jogged away from the quick-stop point, and not returned with a J= command,

Turbo PMAC will reject the < back-up command, reporting ERR017 if I6 is set to 1 or 3.

This same functionality can be obtained from within a Turbo PMAC program by setting Isx21 to 7, which

executes more quickly than CMD “&n<”.

If the coordinate system is not currently in the middle of a lookahead sequence, Turbo PMAC will treat

this command as an H feed-hold command.

See Also:

I-variables Isx13, Isx20, Isx21

On-line commands \, >, /, A, H, J=, R, S

Function: Resume Forward Execution in Lookahead Buffer

Scope: Coordinate-system specific

Syntax: >

This command causes the Turbo PMAC to resume forward execution in the lookahead buffer for the

addressed coordinate system. Typically, it is used to resume normal operation after a \ quick-stop

command, or a < back-up command. If the program is currently executing in the backward direction, it

will be brought to a quick stop (the equivalent of the \ command) first.

If previous forward execution had been in continuous mode (started with the R command), the >

command will resume it in continuous mode. If previous forward execution had been in single-step mode

(started with the S command), the > command will resume it in single-step mode.

The R and S commands can also be used to resume forward execution, but they may change the

continuous/single-step mode.

Deceleration from a backward move (if any) and acceleration in the forward direction observe the Ixx17

acceleration limits.

If any motor has been jogged away from the quick-stop point, and not returned with a J= command,

Turbo PMAC will reject the > resume command, reporting ERR017 if I6 is set to 1 or 3.

This same functionality can be obtained from within a Turbo PMAC program by setting Isx21 to 6, which

executes more quickly than CMD “&n>”.

If the coordinate system is not currently in the middle of a lookahead sequence, Turbo PMAC will treat

this command as an R run command.