Functions
8.2 PROFINET IO
ET 200pro distributed I/O system
186
Operating Instructions, 03/2013, A5E00335544-08
8.2
PROFINET IO
8.2.1
Identification data for PROFINET IO
Definition
Identification data is information stored in a module which assists the user when:
●
Checking the system configuration
●
Locating hardware changes in a system
●
Correcting errors in a system
Identification data enable modules to be uniquely identified online.
STEP 7 displays the identification data in the "Module Information - IM 154" and
"Properties..." tabs (see STEP 7 online help).
Reading the identification data
You can directly access specific identification data by selecting Read data record. Obtain the
corresponding part of the identification data under the associated data record index.
The data records are structured as follows:
Table 8- 6
Basic structure of data records with identification data for PROFINET IO
Contents
Length (bytes)
Coding (hex)
Header information
BlockType
2
I&M0: 0020
I&M1: 0021
I&M2: 0022
I&M3: 0023
BlockLength
2
I&M0: 0038
I&M1: 0038
I&M2: 0012
I&M3: 0038
BlockVersionHigh
1
01
BlockVersionLow
1
00
Identification data
Identification data
(see table below)
I&M0/Index AFF0 hex: 54
I&M1/Index AFF1 hex: 54
I&M2/Index AFF2 hex: 16
I&M3/Index AFF3 hex: 54