EtherCAT measurement modules: accurate, fast, robust

EtherCAT measurement modules: accurate, fast, robust

Beckhoff has extended its measurement technology portfolio with a new high-speed, high-precision measurement device series. The high-performance EtherCAT measurement modules open up opportunities in terms of accuracy, precision of measured values, cycle times, synchronisation and long-term measurement accuracy – the level of which was to date only offered by cost-intensive, dedicated devices when used in automation. Beckhoff now offers a system-integrated measurement solution, without platform or system gaps, for existing PC- and EtherCAT-based control technology. The product portfolio now ranges from simple analog 12-bit terminals to high-precision, 24-bit condition monitoring modules with a sampling rate of 50 ksamples/s.

The new devices are designed for versatile application in industrial and testing environments. The available options include multi-function channels with numerous integrated measuring ranges (30 V to 20 mV, ±20 mA, full/half/quarter bridge strain gauge, IEPE, thermocouple, RTD) and also price-optimised versions with different numbers of channels. The main feature of the EtherCAT measurement modules is the superior quality of the acquired data values, which is achieved through a range of measures:
  • High-quality, state-of-the-art components ensure particularly low-noise and dynamic measurement. The high 24-bit resolution, offering theoretically 256 times finer measurement resolution than the usual 16 bit, can be fully utilised. EtherCAT, with its 100 Mbit data rate, provides ample bandwidth for transmitting even hundreds of 24-bit channels with 10 ksamples/s.
  • Special pretreatment ex-factory ensures that measurement technology hardware from Beckhoff is ready for continuous operation and provides long-term stability.
  • A shielding concept for analog cables to provide long-term security was also implemented. This offers robust protection against interference and is also effective under vibration load.
  • Low measurement uncertainty is achieved through high-quality synchronisation in series and precisely logged dependencies of the influences: Beckhoff indicates the individual error components such as repeat errors, non-linearity, offset/gain errors and noise in the specification.