10Display and Programming front5Section 5.1 - Functionalityexplanatory help texts guide you effortlessly and automaticallythrough the configuration steps, thus making the product veryeasy to use. Functions and configuration options are described inthe section ”Configuration / operating the function keys”.5.2 - Application• Communications interface for modification of operationalparameters in DRST-UN.• Can be moved from one DRST-UN device to another anddownload the configuration of the first transmitter tosubsequent transmitters.• Fixed display for readout of process data and status.5.3 - Technical characteristics• LCD display with 4 lines; Line 1 (H=5.57 mm) shows inputsignal, line 2 (H=3.33 mm) shows units, line 3 (H=3.33mm) shows analogue output or tag no. and line 4 showscommunication status.• Programming access can be blocked by assigning a password.The password is saved in the transmitter in order to ensure ahigh degree of protection against unauthorised modifications tothe configuration.