A base module (1,1) for controlling infusion pumps (14,3) is connected with at least one infusion pump for infusing liquids, in particular into a circulatory system of a patient. Therein, a plurality of module connectors (10) is provided, via each of which the base module (1, 1) is connectable with an external control module (2), wherein each of the module connectors (10) provides a module interface, wherein the base module (1, 1) is adapted to receive control information from a control module (2) via the module interface provided by the module connector (10) the control module (2) is connected to and to control at least one infusion pump (14,3) connected with the base module (1, 1) in dependence on the received control information, which derives from patient parameter sensors (25) connected to the respective control modules. In this way a base module is provided which allows to perform a plurality of infusion control functions via different connected control modules. A communication test method between control and base module is also disclosed.
