Siemens S7-1200 System Manual page 352

Extended instructions
8.5 Diagnostics (PROFINET or PROFIBUS)
Table 8- 126 Example 2: A module has been pulled from PROFINET slave device "et200s_1". A value
Byte with value
Device 1 (Bit 1) is marked as defective. Since the device still exists, MODE 4 (Device exists) shows
Table 8- 127 Example 2 (continued): A module has been pulled from PROFIBUS slave device
Byte with value
Even though device 1 (Bit 1) has an error as shown in MODE 2 (Device defective) above, the device
Table 8- 128 Example 3: PROFINET slave device "et200s_1" is disconnected (cable disconnected or
Byte with value
Device 1 (Bit 1) does not exist. Devices 2 (Bit 2) through 16 (Bit 16) do exist.
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of 0x0300_0000 is returned for MODE 2 (Device defective).
Bit pattern with value
Byte 1 0x03 Bit 7 0000-0011 Bit 0
Byte 2 0x00 Bit 15 0000-0000 Bit 8
Byte 3 0x00 Bit 23 0000-0000 Bit 16
Byte 4 0x00 Bit 31 0000-0000 Bit 24
the same data as when operating normally.
MODE 5 (Problem in device) returns the same information as MODE 2 (Device defective).
"et200s_1". A value of 0xFFFF_0100 is returned for MODE 4 (Device exists).
Bit pattern with value
Byte 1 0xFF Bit 7 1111-1111 Bit 0
Byte 2 0xFF Bit 15 1111-1111 Bit 8
Byte 3 0x01 Bit 23 0000-0001 Bit 16
Byte 4 0x00 Bit 31 0000-0000 Bit 24
is still functioning on the network which causes MODE 4 (Device exists) to show the device as an
"existing device".
power loss) from the PROFINET network. A value of 0xFDFF_0100 is returned for
MODE 4 (Device exists).
Bit pattern with value
Byte 1 0xFD Bit 7 1111-1101 Bit 0
Byte 2 0xFF Bit 15 1111-1111 Bit 8
Byte 3 0x01 Bit 23 0000-0001 Bit 16
Byte 4 0x00 Bit 31 0000-0000 Bit 24
Notes
Bit 0 is true; data is available.
Notes
Bit 0 is true; data is available.
Notes
Bit 0 is true; data is available.
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG