Diagnostics Through The User Program; System Diagnostics By Means Of Standardized Functions - Siemens SIMATIC ET 200pro Original Instructions Manual

A table with the message classes is provided in the List Manual of your inverter
(https://support.industry.siemens.com/cs/ww/en/view/21210852), in Chapter, Faults and
alarms.
11.2.1

Diagnostics through the user program

The drive's fault condition is indicated in the cyclic program via status word 1 in bit 3
(ZSW1/bit 3). The PLC program can read this bit and in the event of any faults it can
investigate their cause with the help of the function "Reading parameters": Parameter P0944
contains the quantity of active faults and r0947 the fault number (the meaning can be found
in the list manual).
Interrupts are displayed in bit 7 of the status word (ZSW1/bit 7). Once this bit has been
evaluated, if any interrupts exist their cause can be investigated with the help of the function
"Reading parameters". Parameter P2111 contains all pending interrupts and r2110 contains
the interrupt numbers, whose meanings can be found in the List Manual.
The user can then initiate suitable action:
● Display
● Reactions in the user program
● Fault acknowledgment via the cyclic program (STW1/bit 7)
The parameters are read in PROFIdrive mode by calling SFC 59.
Note
The fault bit (ZSW1/bit 3) can also be evaluated by means of system diagnostics.
11.2.2

System diagnostics by means of standardized functions

Prerequisites
1. When configuring the interface module, the diagnosis must be released.
2. When configuring the converter, the diagnosis must be released.
SIMATIC ET 200pro FC-2 converter
Operating Instructions, 04/2015, FW V4.7.3, A5E34257324B AB
Alarms, faults and system messages
11.2 Diagnostics through fieldbus
203