The DGH D1000M series data acquisition modules use the Modbus RTU protocol for communication. The D1000M are complete single-channel data acquisition systems that are well suited to applications such as SCADA, data monitoring, data loggers, PLC’s, process controllers and instrumentation. The modules convert an analog input signal to engineering units and transmit in ASCII data format to any host or PLC with RS485 or RS232 serial ports. The D1000M Modbus DAS series analog signal input types include Voltage, Current, Temperature, Flow, Bridge and Load Cell.

The D1000M series converts the digital signal data into engineering units using look-up tables. The resultant data is stored in a memory buffer. The module’s ADC continuously converts data at the rate of 8 conversions per second and stores the latest result in the buffer. Using RS485 up to 247 Modbus DAS modules may be linked to an RS485 port or PLC. Since Modbus protocol does not support echoing D1000M RS232 modules may not be daisy-chained. This limits you to one module per RS232 serial port.  The single analog input D1000 and D2000 DAS series provides an isolated 15-bit measurement ADC and discrete digital I/O bits for controlling solid state relays or sensing contact closures. The four analog input D5000M Modbus DAS modules provide direct connection to four analog signals of the same type and range. ADC conversion and linearization of sensor input data and communicates in ASCII format via RS232 or RS485 DIN-100 Modbus series are low cost single channel modules that are DIN rail mountable.

Input Types

Voltage : (+/-10mv, +/-100mV, +/-1V, +/-5V, +/-10V, +/-100V)   Current : (+/-1mA, +/-10mA, 4-20mA, +/-100mA, +/-1Amp)   Thermocouple : (J, K, T, E, R, S, B, C)   RTD : (.00385, .00388, .00392)   Thermistor : (2252 Ohm, Honeywell TD Series)   Bridge : (+/-30mV, +/-100mV, 1-6V)   Frequency : (100uS-30Sec, 1-20KHZ)   Accumulator : (100uS-30Seconds, 1Hz-10KHZ)   Digital I/O : (7 Discrete Inputs, 8 Discrete Outputs)