Difference between revisions of "MC-Basic:IDNVALUE"

From SoftMC-Wiki
Jump to: navigation, search
m
Line 43: Line 43:
  
 
? IDNVALUE (<drive_expression>, <idn_expression>, <element_expression>)
 
? IDNVALUE (<drive_expression>, <idn_expression>, <element_expression>)
 +
 
? IDNVALUE (<drive_expression>, <idn_expression>, <element_expression>, <ring_expression>)
 
? IDNVALUE (<drive_expression>, <idn_expression>, <element_expression>, <ring_expression>)
 +
 
? IDNVALUE (<drive_expression>, <idn_expression>, <element_expression>, , <connection_expression>)  
 
? IDNVALUE (<drive_expression>, <idn_expression>, <element_expression>, , <connection_expression>)  
 
--> Translator note: Ring number is zero
 
--> Translator note: Ring number is zero

Revision as of 10:10, 3 November 2011

This function is used to read the value of a specified element of an IDN from a specified drive. It should be used when reading an IDN that takes numeric values.

Use the IDNSTATE query to read the execution state of a SERCOS procedure executing on the drive.

Short form

Ival

Syntax

IdnValue (<drive address>, <IDN>, <element>, {<ring>}, {<connection>} )

Availability

All versions {<ring>}, {<connection>}) options - from AMCS 0.4.7.12 for SERCOS III

Range

<drive address>: 1 to 254
<IDN>: 1 to 65536
<element>: 1 to 7 <ring>:1 <connection>:0 to 2 for normal systems (0 = chose automatically, 1 = first AT connection, 2 = first MDT connection)

Scope

Configuration, Task or Terminal

Limitations

Read-Only. Executed only in SERCOS communication phases 2, 3 and 4.

The IDN must be defined.

Examples

?IdnValue(1, 189, 7)                                   ‘Get drive position following error

? IDNVALUE (<drive_expression>, <idn_expression>, <element_expression>)

? IDNVALUE (<drive_expression>, <idn_expression>, <element_expression>, <ring_expression>)

? IDNVALUE (<drive_expression>, <idn_expression>, <element_expression>, , <connection_expression>) --> Translator note: Ring number is zero

? IDNVALUE (<drive>, <idn>, <element>, <ring>, <connection>)

See Also