BSI has published BS EN 60546-1:2010, Controllers with analogue signals for use in industrial-process control systems. Methods of evaluating the performance (which is identical to IEC 60546-1:2010). BS EN 60546-1:2010 replaces BS EN 60546-1:1993.
This International Standard applies to proportional-integral-derivative (PID) pneumatic and electric industrial-process controllers using analogue continuous input and output signals.
Note that while the tests specified in BS EN 60546-1:2010 cover controllers having such signals, they can be applied in principle to controllers having different but continuous signals. It should be also noted that this standard has been written for PID controllers with only analogue components and is not necessarily to be used for controllers with microprocessors.
BS EN 60546-1 is intended to specify uniform methods of test for evaluating the performance of PID controllers. The test conditions specified in the standard, for example the range of ambient temperatures, power supply, etc, are used when no other values are agreed upon by the manufacturer and the user.
BS EN 60546-1:2010, ISBN 978 0 580 62203 8, is available from BSI as a PDF or hard copy document priced at £150 (or £75 for members of BSI).