Siemens SIMATIC ET 200SP - 4 Using the Ssi_Absolute_Encoder Technology Object; Technology Object Ssi_Absolute_Encoder

Counting, measurement and position detection
136 Function Manual, 12/2017, A5E32009889-AG
Using the SSI_Absolute_Encoder technology object
4
4.1
Technology object SSI_Absolute_Encoder
STEP 7 (TIA Portal) supports you in the configuration, commissioning and diagnostics of
counting and measuring functions for the technology module TM PosInput: with the
"Technology objects" function
● In STEP 7 (TIA Portal), you configure the SSI_Absolute_Encoder technology object with
the settings for the position input with an SSI absolute encoder.
● The corresponding SSI_Absolute_Encoder instruction is programmed in the user
program. This instruction supplies the control and feedback interface of the technology
module.
The SSI_Absolute_Encoder technology object corresponds to the instance DB of the
SSI_Absolute_Encoder instruction. The configuration of the position input and measuring
functions is saved in the technology object. The technology object is located in the folder
"PLC > Technology objects".
The SSI_Absolute_Encoder technology object can be used for the TM PosInput of both the
S7-1500 and ET 200SP systems alike.
Operating mode
In order to assign the technology module parameters using a TM PosInput, you specify the
operating mode (Page 174) "Operation with technology objects for "counting and
measurement"" in the hardware configuration of the TM PosInput. This selection is already
preset.