H, T and S Parameters

H-, T- and S-parameters are used to transfer parameters from the NC interpreter to the PLC.

In this context the H-parameter stands for auxiliary parameter and is of type DINT (32 bit signed).

The T and S parameters are of type WORD, and stand for Tool and Spindle.

Sample: 

H=4711
R1=23
S=R1
T4711
H, T and S Parameters 1:

No R parameter can be assigned for the T parameter. Furthermore, the assignment is made without assignment operator ('=').

T and S parameters take effect at the start of a block, H parameters take effect at the end of the programmed block.