Failed slaves can be easily replaced, the master automatically redirects them.Safety at Work is the concept of functional safety used in ASi-3 technology. Due to a special terminating resistor (a combination of resistive and capacitive load), however, it is possible to increase the maximum cable length up to 300 m.Diagnostic devices or masters with built-in diagnostics simplify network troubleshooting. To address 62 participants, two cycles are necessary.The topology of the AS-Interface is arbitrary, but without a repeater or extender, the cable length must not exceed 100 m. Manchester coding is used for the communication.For 31 participants, the cycle is 5 ms. This provides up to 124 (4 x 31 = 124) input and 124 outputs on a standard device network (nodes addressed 1-31) or 248 (4 x 62 = 248) inputs and 248 outputs on an advanced network (nodes addressed 1A - 31A and 1B - 31B ).The serial communication is modulated onto the power supply. Each node can have up to four inputs and/or four outputs for actuators or sensors. A maximum of 31 (standard devices) or 62 (advanced devices) nodes can be connected. The master communicates with the participants with a serial transmission protocol.Each subscriber is assigned an address by an addressing device or via the master. A telegram (message frame) consists of 4-bit user data.
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