Table of Contents
Advertisement
3.6
Frequency Converter diagnosis with STEP 5 or STEP 7
Slave diagnosis
The slave diagnosis complies with IEC 61784-1:2002 Ed1 CP 3/1. It can be read
out using STEP 5 or STEP 7 for all DP slaves that comply with the standard,
depending on the DP master.
You can find out how to read out the slave diagnosis and learn about its structure
in the chapter on commissioning and diagnostics in the ET 200X Distributed I/O
Device manual.
The structure of the station diagnosis of the Frequency Converter is indicated in
the figures below.
S7 Diagnosis
The S7 diagnostic data of a module is in data records 0 and 1 of the system data
area of the module.
Data record 0 contains 4 bytes of diagnostic data describing the current state of a
module. The data record 1 also contains module-specific diagnostic data. It has 16
bytes in the case of the Frequency Converter.
The records of the S7 diagnosis are included in the station slave diagnosis.
Bytes 13 to 16 of the station diagnosis correspond to record 0 of the S7 diagnosis.
Bytes 13 to 28 correspond to record 1 of the S7 diagnosis. Record 1 contains
record 0 in the first 4 bytes.
Diagnostic interrupt
If a fault in the frequency converter is supposed to trigger a diagnostic interrupt,
this must be specified during parameter assignment of the Frequency Converter
(see Section 4.2) and the basic module (by enabling the diagnostic interrupt).
EM 148-FC Frequency Converter
A5E00065321-03
Commissioning and Diagnostics
3-7
Advertisement
Table of Contents
