@maehne First of all, thank you for your reply.
Maybe it is me, but I got the following error message when I tried SCA_ELN_MODULE: "expected constructor, destructor or type conversion before '(' token" . This makes me believe the macro is not defined. SCA_TDF_MODULE does not give me this error. Am I correct?
I tried this with my ELN module as follows:
LifELN lifNeuron("lifNeuron", Cm, Rm, sampleRate);
lifNeuron.set_timestep(sca_core::sca_time(1000.0 / sampleRate, sc_core::SC_MS));
Unfortunately, the compiler gives me the following error: "struct LifELN has no member name