Laureate™ Serially Driven 6-Digit Panel Meter & Remote Display

• Serial communications: Ethernet Interface, Ethernet-to-RS485 converter, USB Interface, USB-to-RS485 converter, RS485 interface (dual RF11), RS485 Modbus interface (dual RJ45), RS232 interface.
• Low voltage power: 10-48 Vdc or 12-32 Vac
• Relay outputs: 2 or 4 relays, contact or solid state
• Analog outputs: isolated 4-20 mA, 0-20 mA, 0-10V, 10 to +10V

Laureate™ Remote Displays (or Serial Input Meters) are slave displays which accept the RS232, RS485, Modbus RS485 or USB data from computers, programmable controllers, Laureate instruments, or other devices with a serial data output. They can also provide relay closures and an analog output based on the received serial data. They blend in with 1/8 DIN Laureate digital panel meters, counters and timers to provide a numeric display from -999,999 to +999,999.

Use with Laureate Instruments. All Laureate meters, counters and timers allow the display of the sending unit to be duplicated by a Laureate remote display. The simultaneous display of multiple parameters using multiple remote displays is possible if the sending unit is a Laureate counter equipped with an FR (frequency) or VF (voltage-to-frequency) signal conditioner board. While the sending counter can only display one selected parameter at a time (such as rate for channel A), up to four parameters can be transmitted in the serial data (such as rate A, rate B, ratio A/B and peak). A remote display can be set up to display any of the transmitted items. For example, a Laureate Batch Controller can show the current batch total, while remote displays show rate, peak rate, and either grand total or number of batches. An indicator light shows which item has been chosen for display.

A serial communications board is required. Choices are Ethernet, Ethernet-to-RS485 converter, USB, USB-to-RS485 converter, RS485 with dual RJ11 connectors for daisy chaining, Modbus RS485 with dual RJ45 connectors for daisy chaining, and RS232. Three serial protocols are user-selectable: Modbus RTU, Modbus ASCII, and Laurel ASCII. The Modbus protocol allows devices by different manufacturers to share the same data line, but the Laurel protocol is simpler and is recommended when all devices on the line are Laureates.

Isolated Analog Output Option. A Laureate remote display can be equipped with a single or dual 16-bit isolated analog output board to serve as a low-cost and highly accurate digital-to-analog converter or transmitter.

Alarm & Setpoint Control Options. A Laureate remote display can be equipped with an optional relay output board with 2 or 4 relays to provide remote alarm or setpoint control capability. These can be 8A contact relays or opto-isolated AC/DC solid state relays. The relays can respond to the transmitted values or to any of 8 serially transmitted control characters. The control characters can be generated by a Laureate meter, counter or timer, thereby assuring that the local and remote alarm points are identical.