1Ssi; Product Overview - Siemens SIMATIC ET 200S Operating Instructions Manual

1SSI

4.1

Product Overview

Order Number
6ES7 138-4DB03-0AB0
Compatibility
The 1SSI with order number 6ES7 138-DB03-0AB0 replaces the 1SSI with the following
order numbers:
• 6ES7 138-4DB02-0AB0
• 6ES7 138-4DB01-0AB0
• 6ES7 138-4DB00-0AB0
and is fully compatible.
Features
• The 1SSI is an interface between an absolute encoder (SSI) and the parent controller.
• Can be operated using terminal modules TM-E15S24-01 and TM-E15S26-A1
• Isochrone mode
• Normalization of the encoder value (that is, discounting of adjusted, irrelevant bits in the
• Reversal of the direction of rotation to adjust the direction of movement of the absolute
• Latch function for freezing the current encoder value (only possible in standard mode).
• Comparison function between the current encoder value and loadable comparison values
• Type of encoder value recording can be selected:
Technological Functions
Operating Instructions, 02/2007, A5E00124867-05
You edit the cyclically recorded encoder value in your controller program.
encoder value).
encoder to the axis.
(only possible in standard mode).
– Free-wheeling
– Synchronous to the update rate
– Isochronously
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