Siemens SIMATIC S7-1200 - Page 478

Extended instructions
9.7 Diagnostics (PROFINET or PROFIBUS)
S7-1200 Programmable controller
478 System Manual, V4.2, 09/2016, A5E02486680-AK
PROFINET example
The PROFINET example consists of the following:
● 16 PROFINET slave devices named "et200s_1" through "et200s_16"
● The 16 PROFINET devices use PROFINET device numbers 1 through 16, respectively.
● Each slave device is configured with multiple I/O modules.
● The example uses PROFINET slave "et200s_1" which contains a head module, a power
module, and 18 I/O modules.
● The first four bytes of the returned STATE parameter information is displayed.
MODE
Example 1:
Normal operation with
no errors
Example 2:
PROFINET et200s_1
slave module pulled
Example 3:
PROFINET et200s_1
slave disconnected
1: Module configuration
active
0xFFFF_1F00 0xFFFF_1F00 0xFFFF_1F00
2: Module defective
0x0000_0000
0x0180_0000
0xFFFF_1F00
3: Module disabled
0x0000_0000
0x0000_0000
0x0000_0000
4: Module exists 0xFFFF_1F00 0xFF7F_1F00 0x0000_0000
5: Problem in module
0x0000_0000
0x0180_0000
0xFFFF_1F00
The following four tables show a binary breakdown of the four bytes of data that are being
analyzed:
Table 9- 174 Example 1: No errors: A value of 0xFFFF_1F00 is returned for MODE 1 (Module configu-
ration active).
Byte with value
Bit pattern with value
Notes
Byte 1 0xFF
Bit 7 1111-1111 Bit 0
Bit 0 is true; data is available.
Byte 2 0xFF
Bit 15 1111-1111 Bit 8
Byte 3 0x1F
Bit 23 0001-1111 Bit 16
Byte 4 0x00
Bit 31 0000-0000 Bit 24
Slots 1 (Bit 1) through 20 (Bit 20) contain modules. Slot 21 (Bit 21) and beyond do not
contain mod-
ules.
MODE 4 (Module exists) data matches MODE 1 (Module configuration active), so the configured
modules match the existing modules.
Table 9- 175 Example 2: A module has been pulled from PROFINET slave device "et200s_1". A value
of 0x0180_0000 is returned for MODE 2 (Module defective).
Byte with value
Bit pattern with value
Notes
Byte 1 0x01
Bit 7 0000-0001 Bit 0
Bit 0 is true; data is available.
Byte 2 0x80
Bit 15 1000-0000 Bit 8
Byte 3 0x00
Bit 23 0000-0000 Bit 16
Byte 4 0x00
Bit 31 0000-0000 Bit 24
Only module 15 (Bit 15) is marked as defective. All other modules are functional.