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Monitoring Environmental Conditions

Semiconductor Image


A semiconductor fab needs to monitor temperature, relative humidity, and oxygen levels at multiple points within their processing plant, along a 2 kilometer long process piping system.

They require a solution that monitors temperature, relative humidity, and oxygen levels, provides a location for the monitoring points, and collects all data to a central point and interfaces with their SCADA system. The solution needs to create an efficient, safe work environment for all employees. With over 2 kilometers of underground tunnel piping systems, installing cable to each monitoring location is cost prohibitive.


A Modbus-based, wireless I/O network that monitors sensor data at each location, in addition to providing hard-wire control outputs based on sensor data met the customer’s needs. Using Banner’s Modbus MultiHop Wireless I/O system allows the customer to monitor each environmental variable independently. This information is transmitted through the wireless network to a local controller and then on to a central control room where additional networks of environmental and/or process data can be monitored simultaneously.

The MultiHop network consists of 25 wireless devices including sensors, controllers, and I/O devices. The Modbus MultiHop Master Radio collects and routes data from all the repeater and slave radios, communicates via Modbus RTU which is a universally accepted protocol for most HMI, PLC, or SCADA systems. The repeater and slave radios provides a junction for Modbus slave devices and has a built-in analog I/O, provides a location from its address within the Modbus MultiHop radio network, and extends the range of the network by providing a repeater station to extend distances and get around radio signal obstacles. The MultiHop network also includes the M12FTHQ3 Temperature and Humidity Sensor and CL50 Indicator Lights with Audible Alarm.

Featured Products

Performance Series Gateways and Nodes
Performance Series Industrial Wireless Gateways and Nodes

Create point-to-multi point networks that distribute I/O over large areas. Input and output types include discrete (dry contact, PNP/NPN), analog (0 to 10 V dc, 0 to 20 mA), temperature (thermocouple and RTD), and pulse counter.

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Temperature & Humidity Sensor Series
Temperature & Humidity Sensor Series

Sure Cross® Temperature and Humidity Sensors work in a variety of environments to provide temperature and humidity measurements. Used with Sure Cross Wireless Radios, these sensors make it easy to monitor environmental conditions without costly wiring runs to monitoring points.

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CL50 Series 50 mm LED Column Lights
CL50 Series 50 mm LED Column Lights

Rugged, cost-effective, & easy-to-install multi-color indication in a single segment. No controller needed. 1-, 2- or 3-color models available.

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