Echelon I/O Model Reference for Smart Transceivers and Neuron Chips - Manual (Page 193)

I/O Model Reference 183
Figure 69. Triac Output, Example 1
Example 2
This example does not apply to model 0 Neuron 3150 Chips.
IO_1 output triac sync (IO_4) clockedge (+-) io_dimmer_2;
...
io_out(io_dimmer_2,325);
Figure 70. Triac Output, Example 2
Triggered Count Output
You can use this I/O model to control stepper motors or position actuators that
provide position feedback in the form of a pulse train.