The DATMO set is a group of all the elements developed by the company DATmoLUX a.s. for the field of public lighting. The elements allow for mutual communication and cooperation in such a way so that the technology can be modelled for both customers from small municipalities and for large agglomerations. The CPU DATMO PLS or the CPU DATMO 2018 control unit form the foundation. These serve as ‘Masters’ for cooperation with the remaining elements of the set. The power supply of all elements of the set is ensured by any +12V DC voltage back-up source. The OVZ DATMO or OVZ2018 source is offered in the set.
The CPU DATMO PLS control unit is the basic element of the DATMO set. It is designed for the collection and processing of data from public lighting switchboards. Full usage is reached in standard PLS switchboards from the company DatmoLUX a.s. The parameter setting of the unit can be done from a panel via buttons, or via the Dloader utility program, which is designated for trained personnel.
The CPU DATMO PLS is supplied with a voltage of +12/+24V DC,1A. For displaying the data, an LCD display with dimensions of 128 x 64 points is used. Functional regimes are selected via the ‘s’ buttons. The multifunctional button in the right part of the unit is designated for work in the individual regimes. If the switchboard is in a state which the CPU unit evaluates as a fault, the LED ‘Err’ diode will light up on the right side of the unit. The dimensions of the unit are 250 x 110 x 60 mm and it is possible to locate it on the DIN bar.
The OVZ DATMO source is a universal source of power supply with a voltage of +12V DC (max. 5A). It is designed for the power supply of the elements of the DATMO set in the PLS switchboards from the company DATmoLUX a.s. The source is also designed for the power supply of the radio-modem, which can draw up to 3.5A during max. transmission output. The back-up of the source is from BAT 12V/12Ah. The source allows for its unmanned maintenance.
The OVZ DATMO source has 8 independently secured power supply circuits of 12V. 6 circuits (150mA) are designated for the power supply of other elements of the DATMO set and 1 circuit (3.5A) is specifically designated for the power supply of the communication link. Each circuit has its own protection with a fuse and an indication of the status of the fuse via an LED. The source is equipped with two connectors (RJ) for the connection to the RS485 backbone line. There is an infra and USB port in the left part of the source under the cover. These are designated for service purposes.
The current sensor from the company DATmoLUX a.s. is designed for the contactless measuring of the currents entering the cables of public lighting. It is designed as an independent unit which can be connected to the GSM modem, or it is possible to connect the sensor to the RS485 line as a collector and to communicate with the superior unit. The sensor is designed mainly for cooperation with other elements of the DATMO set. For example, these include the CPU DATMO PLS and UNIpanel.
The sensor is powered with a voltage of +12V/+24V DC, 1A. It contains 18 (9) measuring circuits for the measuring of currents in the range of 0.2 – 50A. (There are 6 cables with 3 phases.) The measured values are digitalised with a 200mA measurement step. The ‘TEST’ and ‘MASK’ buttons are on the front panel. The ‘TEST’ button serves for the immediate control of all measuring circuits. The ‘MASK’ button serves to save the referential values of the currents into the SPP memory. The current values of the currents are then compared with the referential ones and any possible discrepancies are evaluated as non-standard states of the current in the public lighting network. The SPP dimensions are 350 x 70 x 60 mm. The SPP is mounted into the switchboard onto the DIN bar, which is then mounted into the mounting cage or assembly desks.
The communal superstructure is developed especially for the DATMO set for data collection, which is directly unrelated to the operation of public lighting. It consists of a reading of other secondary electrometers and the possibility of monitoring any 8 binary inputs and switching 8 binary outputs that can directly switch the coils of contractors of a 230V AC voltage. The inputs are designated for the monitoring of the status of the switching elements via their auxiliary contacts. Each output can be controlled using an independent calendar. This can be utilised during the control of festive lighting, which is independent of public lighting and is led into the PLS switchboard via a separate cable. The CPU DATMO KN has its own (internal) power supply source of a 220V/+12V DC voltage. It can be used as an independent eightfold switching clock. The unit has two serial ports: USB for communication with the Dloader SW and RS 485 (backbone line) for communication with other elements of the DATMO set. The USB port can be replaced with an IRDa port, which is located under the cover on the left side.
The DATMO Control system is a simple system of controlling ‘intelligent’ electronic ballasts with the control line for the switching of the luminaire output. The system consists of a DATMO DC-2 unit located in the PL switchboard and any number of DCD/2 units located in the luminaire. The DATMO DC-2 unit can be controlled either from the CPU DATMO RVO superior unit from the DATMO set, or it can have its own CPU DATMO DC-2 control part mounted on it which contains a yearly calendar and calendars for the switching of two groups of DCD/2 receivers located in the luminaire. The DCD/2 element, which is located with the ballast in the luminaire, either has a ‘binary’ input for the switching of the output of the luminaire or an ‘analogue’ output (0–10V DC voltage) where the level of the output of the luminaire can be adjusted using the DIP switch. Furthermore, the DCD/2 element can be used with potential-less contact for general use.