Etel DSC2P - Conditional Jump: TST, JEQ, JNE, JLT and JGT Commands

ETEL Doc. - Operation & Software Manual # DSC2P 903 / Ver. F / 3/6/05 Chapter D: Programming
Operation & Software Manual
Direct Drives & Systems 221
14.2.3 Conditional jump: TST, JEQ, JNE, JLT and JGT commands
To compare a register value to another register value or an immediate value with another immediate value, the
TST command (TeST) is first performed.
Then, if the following 'test jump' command is true, the sequence execution will continue from the label in <P1>
(the bit# 8 of SD1 is set to 1).
The commands 'Test jump' are: JEQ (Jump if EQual), JNE (Jump if Not Equal), JLT (Jump if LiTtle than) and
JGT (Jump if GreaTer than).
If the condition is not met, the sequence execution goes on from the line following the test.
Note: For floating point variables (F registers), the FTST command replaces TST.
Example:
X2.1=20 ;Attributes the value 20 to X2 variable.
TST.1=X1.1,25 ;Compares the X1 user variable with the number 25.
JGT.1=10 ;Sequence execution goes on from label 10 if X1>25.
JEQ.1=X2 ;Sequence execution goes on from label 20 (value contained in the user variable X2)
if X1=25.
POS.1=50000 ;If no test is right when X1<25, the sequence goes on from the following line and the
motor moves to the position 50000.
:10.1
Instruction 1
:20.1
Instruction 2
Command <P1>, <P2> Comment
TST.<axis> = <P1>, <P2> 2 values
Compares the values contained in registers <P1> and <P2>, or the immediate values
entered for <P1> and <P2>
Command <P1>
Value of
<P1>
Comment
JEQ.<axis> = <P1>
<label_#> 0-511
If <P1>=<P2> the execution of the sequence goes on from label shown by <P1>.
JNE.<axis> = <P1>
If <P1>
≠<P2> the execution of the sequence goes on from label shown by <P1>.
JLT.<axis> = <P1> If <P1> < <P2> the execution of the sequence goes on from label shown by <P1>.
JGT.<axis> = <P1> If <P1> > <P2> the execution of the sequence goes on from label shown by <P1>.