Abstract: A medication infusion system may be selectively configured to perform an emulation of any one of a plurality of Device Types corresponding to the environment of use. The particular parameters which relate to a given Device Type are set into the system either at the factory or by biomedical engineers at the hospital or other medical institution by resort to an intercoupled computer driven by appropriate software. With the system set up in this fashion, a clinical user can select a given Device Type and can view but cannot change the critical operating parameters thereof. Substantial economies and improvement of device operation are realized by the provision of one switchable system in place of the plurality of different types of devices now required in a given institution.