Intelligent analog input modules

July 2003 PLCs, DCSs & Controllers Robotics & Mechatronics

A range of analog input modules use microprocessor-controlled, high-resolution, 16-bit, sigma-delta A/D converters to acquire sensor signals such as voltage, current, thermocouple or RTD.

The ADAM-4000 series modules from ProMicro, translate analog data into either engineering units, % of FSR, two's complement or ohms. After receiving a request from the host computer, data is sent in the desired format over the RS485 network. Modules may be remotely configured for 14 different combinations of input types and ranges such as T/C, mA, V and mV. This reduces stock requirements, as only one model is required for all functions.

ADAM-4018M features six differential and two single-ended channels. Its 128 KB of Flash memory can accommodate up to 38 000 data samples and will write until the memory is exhausted. With a remotely configurable sampling interval of 2 s to 18 h, the module is the ideal link between industrial processes and the PC, enabling remote process monitoring from virtually any computer.

For more information contact Elton Prytz, ProMicro, 011 706 7913, [email protected], www.promicro.co.za

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