Temperature control cascade with pressure control

If the temperature controller cascade with pressure controller and output of temperature controller in bar and is given set value for pressure controller in bar.
My question if the process value and set value in Celsius in temperature control and out put is given in bar . I need this calculation for example if:
PV:250 deg.0C
SV:250 deg.0C
OP:?? Bar
How much it will be output?

Maybe, just maybe, it might depend on the process fluid.

12 ma???