The analogue I/O Wireless Point to Point (WP2P)
provides a low power radio link between the flow meter and the VSD setpoint control at a PLC.
The customer’s existing system uses a central PLC for overall site control. However, a new flow meter and pump with VSD control was added. The application needed to integrate the new flow meter signal and allow the regular changing of the setpoint and speed of the pump to suit the overall water demand.
QTech WP2P solutions can provide a radio alternative to cables over a distance of up to 3km, although this project only needed to travel 1800m.
You can also use a WP2P repeater to increase the range between WP2P modules,
providing a cost effective way of routing around an obstruction such as a hill or a building.
Additionally the WP2P analogue also has two digital inputs and two digital output relays. These can be easily incorporated into the project for remote start, stop or fault monitoring and reset of the remote pump.
Key Features of the WP2P Analogue and Digital system include:
Low power consumption
No programming or configuration and easy mounting and installation
Line of sight operational ranges of ~350m with the supplied antennas, ~2km with optional whip antennas, and up to 4km with Yagi antennas
Link status LED provides confirmation that the two modules are communicating
Isolated 0-20mA Analogue I/O and relay outputs for maximum diversity
State of the art digital radio using 900MHz Digital Modulation technology
All operating distances are indicative only and are terrain dependent.
We have a selection of DC power supplies including mains plug packs and even 110V AC input power packs for centre pivot irrigation solutions.
Please remember that each WP2P module requires both an antenna and a power supply.
You can select the most suitable options for your application from our range of accessories.
Check out our YouTube channel for short guides on how to select power supplies and antennas for your project.
If you are looking for a radio based solution for flow meter and VSD setpoint control projects, the WP2P analogue is ideal.
Order your WP2P system and accessories online by clicking here.
Of course our solutions can be used for many other applications that need 4-20mA and digital signals transmitted – contact our team for assistance.