Tews TIP1155-channel SSI interface with 'listen only' mode

Tews TIP115
ip	powerpc	v. 4.0
Market:	military and aerospace

The TIP115 is an IndustryPack compatible module for motion control applications. The TIP115 offers five independent channels. Each of the 5 channels provides two operating modes: standard SSI interface controller mode and 'Listen only' mode.

The standard SSI interface controller outputs a clock burst to the absolute encoder and receives the returned positional data. The SSI interface controller operates with a programmable clock rate from 1µs to 15µs and programmable data word length from 1 bit to 32 bit.

In 'Listen only' mode the channel listens to an existing SSI interface to observe its data transfer. It takes both the SSI clock and data as inputs. In 'Listen only' mode the channel also has a programmable data word length from 1 bit to 32 bit; the SSI clock rate of the observed SSI interface can be in the range of 1µs to 15µs.

In both modes the data word can be encoded in Binary- or in Gray-Code and with odd, even or no parity.

The data inputs are galvanically isolated by high speed optocouplers. The level of the input and output signals is RS422.

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