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

Interrupt, error, and system messages

7.4 Diagnostics messages of the I/O devices

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
Automation system
SIMATIC S7
92
Reading diagnostics data in STEP 7
Block or register in
with STEP 7
IO Controller
For example in
Config
by selecting
Station > Open
Online
SFB 52
"RDREC"
SFB 54
"RALRM"
Application
HW
Device diagnostics in plain
text on the STEP 7 inter-
face (in the Quick View,
Diagnostics View or Module
Status windows)
Reading data records from
the IO Device
Receiving interrupts from
the IO Device
Operating Instructions, 08/2016, A5E01250250-AJ
See ...
"Hardware diagnostics" in
the STEP 7 online help
SFB, see STEP 7 online
help (System func-
tions/System function
blocks)
SFB, see STEP 7 online
help (System func-
tions/System function
blocks)
ET 200eco PN