Diagnostics With Step 7; Diagnostics Readout - Siemens SIMATIC ET 200S Manual

3.3

Diagnostics with STEP 7

3.3.1

Diagnostics readout

Introduction
The slave diagnostics comply with IEC 61784-1:2002 Ed1 CP 3/1. Depending on the DP
master, slave diagnostics can be read out with
standard.
Length of the diagnostics frame
● For the ET 200S with the IM151-1 BASIC, the maximum frame length is 43 bytes.
● The minimum frame length is
Options for reading out the diagnostics
The table below shows the options for reading out the diagnostics with
PROFIBUS DP.
Table 3- 2 Reading out the diagnostics with STEP 7 on PROFIBUS DP
Automation system with DP
master
SIMATIC S7/M7
IM151-1 BASIC interface module (6ES7151-1CA00-0AB0)
Manual, 07/2008, A5E01075925-02
– 6 bytes (identifier-related diagnostics, module status, and channel-specific diagnostics
disabled via parameter assignment).
STEP 7
Block or tab in
"DP Slave Diagnostics"
tab
SFC 13 "DP NRM_DG"
STEP 7
Application
Slave diagnostics in plain text on
the STEP 7 user interface
Reading out slave diagnostics
(store in the data area of the user
program)
Error and system messages
3.3 Diagnostics with STEP 7
for all DP slaves that comply with the
STEP 7
Reference
"Diagnosing hardware" in
STEP 7
Online Help
STEP 7 Online Help
SFC see
on
15