The Laureate TS6 serial input to analog output transmitter accepts RS-232 or RS-485 serial data with Modbus or Laurel ASCII Protocols, and converts it to an isolated, scalable 4-20 mA or 0-10V analog output signal. The unit fits on a 35 mm DIN rail and is only 22.5 mm (0.89") thick. It is normally powered by AC (95-240V ac ±10%), but can optionally be powered by low voltage AC or DC. All electrical connections are via detachable screw-clamp plugs.

Serial Data Input

One three-screw-terminal connector accepts RS-232 or RS-485 serial data, as selected via jumpers on the main board. Data rates are selectable as 300, 600, 1200, 2400, 4800, 9600 or 19200 bps. The RS-232 interface is suitable for short cable runs and point-to-point communications. The RS-485 interface is compliant with the EIA/TIA-485 standard and supports multiple addressable devices on the same data line using the Modbus protocol or Laurel ASCII Protocol. Modbus implementation is fully compliant with Modbus over Serial Line Specification V1.0 (2002) in RTU or ASCII, half duplex (2-wire) operation, with up to 247 digital addresses.

Selectable Data Retrieval

The Laureate serial-to-analog transmitter is able to retrieve digital data from long character strings. You can specify character positions, start and stop ASCII characters, how many characters to skip, and how many characters to process.

Analog Transmitter Output

The analog output is selectable as 0-10V or 4-20 mA (also scalable for 0-20 mA). All selections provide 12-bit (0.025%) resolution of the output span and are ultra-linear to within one bit. Accuracy is ±0.05% of output span. Output isolation from signal, power and serial communication grounds is provided by a separate on-board transmitter power supply, thereby eliminating potential problems caused by ground loops. The supply can an drive 20 mA into a 500 ohm (or lower) load for 10V compliance, or 10V into 5K ohm (or higher) load for 2 mA compliance.

Easy to Set Up and Install

Transmitter programming is via a three-terminal RS-232 port using Laurel's PC-based Instrument Setup Software. This software can be downloaded from this website at no charge. The required transmitter-to-PC interface cable is available from Laurel (P/N CBL03).

Laurel's transmitters and meters can be part of PC-based data logging systems using Laurel's Datalogging Software, which operates under the Laurel ASCII Protocol.