Now available from Balmoral Technologies , Smart Marquee LED displays can now accept ASCII strings sent over various network protocols, and Slave Smart Marqee models can accept them over Ethernet using TCP/IP protocol.
Balmoral Technologies' Slave Smart Marquee LED displays can be ordered with DeviceNet or Profibus network connectivity; an interface that provides a digital, multi-drop network that can be used for communicating with DeviceNet and Profibus enabled controllers and I/O devices.
These slave interfaces accept ASCII strings from their respective masters. DeviceNet control system provides a single point of connection both for configuration and support for I/O as well as explicit messaging. The Profibus communication interface also has an auto-detect feature for the baud rate of the Profibus network.
Most programmable logic controllers (PLC's) have the capability of generating ASCII strings. For example, Allen Bradley SLC and Micrologic series have AWT ASCII write command, Mitsubishi FX series PLC's have RS (FNC 80) and Siemens S7 series have SMT string generator instructions.