Siemens SIMATIC S7-1200 - Page 470

Extended instructions
9.7 Diagnostics (PROFINET or PROFIBUS)
S7-1200 Programmable controller
470 System Manual, V4.2, 09/2016, A5E02486680-AK
Table 9- 159 Example 1: No errors: A value of 0x01FC_FF03 is returned for MODE 1 (Device configu-
ration active).
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 0xFC Bit 15 1111-1100 Bit 8
Byte 3 0xFF
Bit 23 1111-1111 Bit 16
Byte 4 0x03
Bit 31 0000-0011 Bit 24
The devices are configured in addresses 10 (Bit 10) through 25 (Bit 25).
No devices are configured in addresses 1 through 9.
MODE 4 (Device exists) data matches MODE 1 (Device configuration active), so the configured
devices match the existing devices.
Table 9- 160 Example 2: A module has been pulled from PROFIBUS slave device "DPSlave_12". A
value of 0x0110_0000 is returned for MODE 2 (Device 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 0x10
Bit 15 0001-0000 Bit 8
Byte 3 0x00
Bit 23 0000-0000 Bit 16
Byte 4 0x00
Bit 31 0000-0000 Bit 24
Device 12 (Bit 12) is marked as defective.
MODE 5 (Problem in device) returns the same information as MODE 2 (Device defective).