H, S, and T parameters

The H, S, and T parameters are used to transfer parameters to the PLC during block execution.

Parameter

Data type

Use

Example

H parameter

DINT (32Bit signed)

Help parameter

N1 G1 X10 Y20 H=1020

S parameter

WORD

Spindle

N2 G1 X20 Y30 S=30

T parameter

WORD

Tool

N3 G1 X30 Y40 T4

H, S, and T parameters 1:
  • In contrast to the classic interpreter, the H parameter also acts before the movement in the GST interpreter, see Execution Order of a block.
  • No R parameter can be assigned to the T parameter.
  • For the T parameter, assignment is performed without an assignment operator ('=').