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AS-i Tuner:Triplication of the AS-i cable length Strengthen of the robustness of AS-i Supervise the quality of the installation AS-i Bus Termination: |
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The primary task of the AS-i Tuner consists in the length adjustment in AS-i circuits without repeater.
The AS-i Diagnostic Tuner is suitable for the employment as diagnose unit, which announces the bus function of the control online. Unlike to the AS-i Tuner the AS-i Diagnostic Tuner is able to read in the traffic light announcements for each individual slave and to refer to the superordinate control system.
The result can be intergrated into an application program. It signals whether an optimization succeeded. Gradual changing of the quality of the AS-i circuit can be recognized and repaired so on time.
The AS-i Diagnostic Tuner can be switched off over a switch completely or set on a default value.
The Bihl+Wiedemann tuner permit a stable communication with net lengths to approximately 300 m without the employment of a Repeater and without a second power supply unit.
The AS-i Diagnostic Tuner operates after the new "combi slave profile" S-7.A.5, in which digital and serial data will be parallel transferred.
2I/1O data for the basic function of the tuner are transmitted thereby as usual, and are usable with each master. The serial data - here the analog values of the tension and the traffic light values of the individual slaves - are transmitted by the piece with the remaining bits, built up in the master again and sent from here than simple complete telegram to the control. The user finds the up-to-date measured AS-i tension and the minimum AS-i tension as 16 bit analog value in the field of the input data (similar to the analog value transmission).
So that data transmission rates of approx. 50 Baud are attainable in the AS-i A/B operation. Because of the ID code "A" is the Diagnostic Tuner a slave with an extended address range and takes in the A/B operation one of 62 addresses, in the standard mode as A-slave one of 31.
Since the Diagnostic Tuner uses the extended functions as slave, he must be used together with a master after the AS i 3.0 specification. The primary tuner functions is available however also with a AS-i Master according to the specification 2.0 or 2.1.