When the option “Show warning message when the units is different” is enabled under the advanced setup menu, the Energy Manager Summary Module programme will check the dimensional unit difference between the same type of quantities during enquiry. If any difference is found by the programme a warning message is displayed on the screen. In certain cases, mainly in cases of older SMS-software the dimensional units of the same type of quantities happen to differ when using different type devices (for example: the dimensional unit of the real consumption is (kWh) for one of the devices, while it is given as (kWhr) for another one; in this case a warning message is displayed noting that there might be a unit dimension difference).