LED Variable Message Signs
The management of these LED panels varies according to the models:
- VMS WITH MANAGEMENT THROUGH CLEAN CONTACTS OR REMOTE CONTROL
The panels managed via buttons, dry contact inputs or remote control can display messages preset by the user via an exclusive integrated webserver system. When a contact is closed, the corresponding message is recalled.
- VMS WITH MANAGEMENT THROUGH PC SOFTWARE
The luminous LED newspapers are supplied with an Ethernet LAN interface and with a management software compatible with Windows 10 which allows the programming of the visualization of texts, images and graphic effects. These panels allow the display of messages to be programmed on an hourly, daily, weekly or yearly basis.
- VMS WITH MODBUS TCP or RTU INTERFACE
Panels with Modbus interface can easily be managed by a PLC. In the case of numerical displays, each group of digits is associated with a Modbus Holding Register whose content is shown on the display and updated each time the PLC writes a new value.
In the case of alphanumeric displays, each character is associated with a Modbus Holding Register. Every time the PLC writes a numerical value, the display shows the corresponding ASCII character in the corresponding position.
- VMS WITH WEB SERVICE INTERFACE
The LED panels with Web Service interface have an internal web server that manages the display based on the commands it receives from clients that connect via HTTP protocol. Using the standard POST, GET and PUT methods, it is possible to set the strings to be displayed, modify the operating parameters or receive the status and current content of the panel in JSON or XML format.