IO-Link - i²C - Modbus RTU pressure transmitter with digital interfaces

Electronic sensors with digital interfaces are on the rise and have already found their way into numerous industrial applications, such as machine tools for controlling food or pharmaceutical processes, etc., and will continue to gain ground in the future. They will continue to gain ground in other applications in the future. Each of the above interfaces has its own characteristics, so BD Sensors has designed different products from them.

IO-Link is a modern and relatively cost-neutral variant. This is not a bus technology, but a powerful point-to-point communication based on the usual 3-wire technology with standard cabling. The advantages with IO-Link 1.1 include globally standardized I/O technology (IEC 61131-9) for communication with sensors and actuators, central data storage for fast commissioning, and automated parameterization to reduce machine and system downtimes.

i²C is a serial data bus developed by Philips, which has become the standard for simple communication within a device. The synchronous master-slave interface enables fast communication of up to 127 slaves with one master. In addition to the typical settings such as slave address and data format, units for pressure and temperature can also be set.

The DCT 531 with RS485 interface uses the Modbus RTU communication protocol, which has found its way into industrial communication as an open protocol. Based on RS485 technology, interference-free communication over long distances is possible.

Conclusion:
With the DCT series (DCT 533 IO-Link - DCT 532 i²C - DCT 531 RS485 Modbus RTU) with digital interfaces, the customer gains advantages:

- sustainable reduction of costs
- short commissioning time
- reduced downtime in the event of a fault