Interrupt, error and system messages
9.1 PROFIBUS DP
ET 200M
190 Operating Instructions, 12/2008, EWA-4NEB780600602-08
Example for reading the slave diagnosis with FB 192 "IM308C"
Here you will find an example of how to use the FB 192 to read the slave diagnosis for a DP
slave in the
STEP 5
user program.
Assumptions
The following assumptions apply to this
STEP 5
user program:
● The IM 308-C connection as a DP master occupies the frames 0 ... 15 (number 0 of the
IM 308-C).
● The DP slave has the PROFIBUS address 3.
● The slave diagnosis should be stored in the DB 20. You can also use any other data
block for this.
● The slave diagnosis consists of 29 bytes.
STEP 5 user program
STL Description
:A DB 30
:SPA FB 192
Name :IM308C
DPAD : KH F800 Default address area for the IM 308-C
IMST : KY 0, 3 IM no. = 0, PROFIBUS address of the DP slave = 3
FCT : KC SD Function: Read slave diagnosis
GCGR : KM 0 is not evaluated
TYPE : KY 0, 20 S5 data area: DB 20
STAD : KF +1 Diagnosis data as of data word 1
LENG : KF -1 Diagnosis length = joker length (all permissible
bytes)
ERR : DW 0 Error code storage in the DW 0 of the DB 30
To Next Page
Loading...
