leandro.martins Posted June 16 Share Posted June 16 From the manual, the command "p" is described as Quote Power PMAC leaves the values for each axis whose position is computed due to thiscommand in local variable for the communications thread L(256+Sys.MaxMotors+n), where n isthe “axis index” value 0 to 31 (0 for A, 1 for B, etc.) With Sys.MaxMotors=32, I'd expect that the position of axis A would be stored in Coord[x].Ldata.L[288], however the target position (not the current) is present in Coord[x].Ldata.L[512]. It happens in FW 2.5.0.4, cpu PowerPC,APM86xxx. Is that an error in the manual or am I missing something? Is there any L variable that keeps the current position for each axis reported like the command "p", or the only way is using the pread and D-variables? Thanks in advance. Quote Link to comment Share on other sites More sharing options...
Gregs Posted June 16 Share Posted June 16 It seems as though the motion program entered a subprogram, thus changing the stack offset, according to the following chart for default settings: Is there a Call or CallSub command in the program that's being run? Quote Link to comment Share on other sites More sharing options...
leandro.martins Posted June 19 Author Share Posted June 19 (edited) Actually, as I'm just investigating if it's possible to use the L-variables like the manual says, I have just made a very simple test commanding the movements using the cpx command via terminal. Is there a call/callsub behind the cpx command? [Edit] I have tested with a motion program instead of using the cpx Quote open prog 1 abs linear tm(Q70) A(Q71); dwell 0; close And I got the same behaviour: Coord[1].Ldata.L[288] statys as 0, it doesn't matter the value of &1Q71 that use Coord[1].Ldata.L[512] updates to the target position at the moment that I run the program &1p updates with the current value for the whole movement, as expected Using a plc containing the pread is possible to watch the axis A position updating Edited June 19 by leandro.martins Quote Link to comment Share on other sites More sharing options...
steve.milici Posted June 19 Share Posted June 19 Status element Ldata.Lindex shows the base index for the presently executing program. What does that report? Quote Link to comment Share on other sites More sharing options...
leandro.martins Posted June 20 Author Share Posted June 20 The motion program that I'm using to test open prog 1 abs linear tm(Q70); A(Q71); dwell 0; close Running from the terminal &1 Q70=1000 Q71=100 b1r Ldata.Lindex I got Ldata.Lindex=0 Also let Coord[1].Ldata.Lindex in the watch table and getting 0 as well. Quote Link to comment Share on other sites More sharing options...
steve.milici Posted June 20 Share Posted June 20 I will place a request to the FW engineers for clarification. Quote Link to comment Share on other sites More sharing options...
leandro.martins Posted June 21 Author Share Posted June 21 Thank you Steve Quote Link to comment Share on other sites More sharing options...
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