Siemens SIMATIC S7-1500 Motion Control V13 - Page 291

Instructions
11.2 S7-1500 Motion Control V1
S7-1500 Motion Control V13 Update 3
Function Manual, 07/2014, A5E03879256-AC
291
Resetting the "Homed" status
The "Homed" status of a technology object is reset under the following conditions
(<TO>.StatusWord.X5 (HomingDone)):
●
Technology objects with incremental actual values:
– Starting an "MC_Home" job with "HomingMode" = 2, 3, 4, 5
(After successful completion of the homing operation, the "Homed" status is reset.)
– Error in the encoder system, or encoder failure
– Restart of the technology object
– After POWER OFF -> POWER ON of the CPU
– Memory reset
– Modification of the encoder configuration
●
Technology objects with absolute actual values:
– Restoration of the CPU factory settings
– Modification of the encoder configuration
– Replacement of the CPU
Homing a technology object with "HomingMode" = 1..8
To home a technology object, follow these steps:
1. Check the requirements indicated above.
2. Specify the desired homing function in the "HomingMode" parameter.
3. Initialize the necessary parameters with values, and start the homing operation with a
positive edge at the "Execute" parameter.
If the "Done" parameter shows the value TRUE, then the "MC_Home" job has been
completed according to the selected "HomingMode". The "Homed" status of the technology
object is indicated under "Technology object > Diagnostics > Status and error bits > Motion
status > Homed" (<TO>.StatusWord.X5 (HomingDone)).
Termination of a passive homing process with "HomingMode" = 9
With "HomingMode" = 9, the technology object is not homed. If a running "MC_Home" job for
passive homing ("HomingMode" = 2, 3, 8) is overridden by another "MC_Home" job with
"HomingMode" = 9, then the running job is terminated with the parameter
"CommandAborted" = TRUE. The overriding job with "HomingMode" = 9 signals successful
execution with the parameter "Done" = TRUE.
Additional information
An option for the evaluation of the individual status bits can be found in the Evaluating
StatusWord, ErrorWord and WarningWord (Page 175) section.