Lenze I/O system 1000 System Manual - Manual (Page 214)

Product description
I/O compound modules − encoder evaluation
SSI − EPM−S604
3
l
214 EDSIO1000 EN 7.0
Operating modes
In the "Master mode"the module is directly connected to an SSI encoder and also supplies
it. For reading out the encoder, the module provides a cycle to the encoder and presents the
received data current in the process image.
Dead time
Shift register
Baud rate
Data stream
MSB last/first Scaling
bits
Bit length
encoder data
Scaling Coding
Standard
Gray
... 10101010111010100011 ... 10101010111010100011 1,1101010001e+011
Process image
Clock generator
Encoder
SSI module (master mode)
SLIO048
Fig. 3−71 "Master mode" block diagram
In "Monitoring operation"the monitoring module is operated on an SSI encoder passively
to the master module. During this operating mode the SSI encoder has to be supplied via
the master module. During operation, the module monitors the signals of the SSI telegram
and provides the data flow in the process image. In this case again, the module has to be
adapted to the corresponding encoder via parameterisation. The "Baud rate" parameter is
irrelevant.
Dead time
Shift register
MSB last/first Scaling bits Bit length -
encoder data
Scaling Coding
StandardGray
... 10101010111010100011 ... 10101010111010100011
Process image
Clock evaluation
Data stream
Encoder
SSI module (monitoring operation)
SSI module (master mode)
111010100011
SLIO049
Fig. 3−72 "Monitoring operation" block diagram