Hello and welcome to the fora, TG,
Your USB-ML-MON08 is only good for HC08 devices (i.e. one that use a MON08 interface)
You will need a USB-ML-12 or similar BDM type adapter to programme S08 devices (one of which is the 9S08GT60)
You might also consider an OSBDM as discussed in the community project forums here.
Hello and welcome to the fora, TG,
Your USB-ML-MON08 is only good for HC08 devices (i.e. one that use a MON08 interface)
You will need a USB-ML-12 or similar BDM type adapter to programme S08 devices (one of which is the 9S08GT60)
You might also consider an OSBDM as discussed in the community project forums here.