Diagnostics Messages Of The I/O Devices; Diagnostics With Step 7; Reading Diagnostics Data; Channel Diagnostics - Siemens SIMATIC Distributed I/O ET 200eco PN Operating Instructions Manual

Interrupt, error, and system messages

7.5 Diagnostics with STEP 7

7.4

Diagnostics messages of the I/O devices

Actions after a diagnostics message
Every diagnostics message triggers the following actions:
• The SF LED (red) of the I/O device lights up.
• Several simultaneous diagnostics messages are possible.
• Diagnostics data are reported as diagnostics interrupts and can be read from data records.
• Diagnostics messages are saved to the diagnostics buffer of the I/O controller.
• OB 82 is called. If there is no OB 82, the IO Controller goes to STOP.
• Acknowledgment of the diagnostics interrupt to enable new interrupts.
7.5 Diagnostics with STEP 7
7.5.1

Reading diagnostics data

Options for reading the diagnostics data
Table 7-7 Reading diagnostics data in STEP 7
Automation system
SIMATIC S7
7.5.2

Channel diagnostics

Additional information regarding the data records for PROFINET IO
For information on the structure of diagnostics data records, including programming
examples, refer to the Migration from PROFIBUS DP to PROFINET IO
(http://support.automation.siemens.com/WW/view/en/19289930) Programming Manual.
86
Block or register in
with STEP 7
IO Controller
For example in HW
Config by selecting
Station > Open
Online
SFB 52
"RDREC"
SFB 54
"RALRM"
Application
Device diagnostics in plain
text on the STEP 7 interface
(in the Quick View, Dia­
gnostics View or Module
Status windows)
Reading data records from
the IO Device
Receiving interrupts from the
IO Device
Operating Instructions, 06/2022, A5E01250250-AN
See ...
"Hardware diagnostics" in
the STEP 7 online help
SFB, see STEP 7 online help
(System functions/System
function blocks)
SFB, see STEP 7 online help
(System functions/System
function blocks)
ET 200eco PN