Going wireless can be a good alternative in these scenarios, but upgrading older systems to communicate over ethernet can be equally expensive, not to mention incredibly complex. Buying entirely new transmitters that include wireless technology can be an alternative, but they too can be prohibitively expensive.
Precision Digital's PDW series of industrial wireless solutions provide a straightforward way to transmit existing 4-20 mA,
0-10 V, discrete digital signals, and Modbus® serial communications wirelessly, without the need to first convert them into digital TCP/IP or UDP protocol signals. This allows them to be easily installed into all kinds of existing systems while avoiding installation headaches.
PDW Wireless Products
PDW Wireless Accessories
PDW90 Wireless System Typical Setup
When it comes to purchasing transmitters and sensors for new installations, purchasing less expensive wired transmitters and pairing them with PDW wireless products can actually be less expensive than purchasing an all-in-one wireless transmitter that does the same thing. This can often constitute a significant cost savings.
by Simon Paonessa - Technical Writer,
Precision Digital Corporation