Potential evaporation not available?

[meteo60]

Hi,

In my ctl file I have: EVPsfc 0,1,0 0,1,6,1 ** surface Evaporation [kg/m^2]
But I would like to have PEVAPSFC.

This is the settings in my emsupp_cntrl.parm

(ACM_EVP_ON_SURFACE) SCAL=(4.0) ! Accumulated Evaporation at Surface (kg m-2) FNUM=(047)
L=(10000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000)
(ACM_PEVAP_ON_SURFACE) SCAL=(4.0) ! Accumulated Potential Evaporation at Surface (kg m-2) FNUM=(137)
L=(10000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000)

So why PEVAPSFC is not available in the ctl?