Diagnostics and maintenance
4.1 Diagnostics mechanisms of PROFINET IO
PROFINET with STEP 7 V15
90 Function Manual, 12/2017, A5E03444486-AH
Example AM_Location level-oriented
A complex sensor is connected to an IO module (Slot 5, Subslot 1, Channel 1). Two simple
sensors, in turn, are connected to the complex sensor. The module can be addressed within
the PROFINET device model. Level 0 therefore has the value 0x0000. The next level (Level
1) is specified by the assigned slot. This is followed by the further levels for the subslot and
channel and, if appropriate, further subordinate layers.
Figure 4-5 Example of assets with hierarchical AM_Location coding.
Detailed coding for the example:
Bit 0 – 7: AM_Location.Structure = 0x01 (LT format)
Bit 8 – 17: AM_Location.Level0 = 0x000 (assets that are assigned to modules always have
the Level 0 value 0x000)
Bit 18 – 27: AM_Location.Level1 = 0x005 (Slot 5)
Bit 28 – 37: AM_Location.Level2 = 0x001 (Subslot 1)
Bit 38 – 47: AM_Location.Level3 = 0x001 (Channel 1)
Bit 48 – 57: AM_Location.Level4 = 0x3FF (coding for "Level not used")
Bit 58 – 67: AM_Location.Level5 = 0x3FF (coding for "Level not used")
...
Bit 118 – 127: AM_Location.Level11 = 0x3FF (coding for "Level not used")
Notation used in the screen for the LT coding of complex sensors: 0.5.1.1
The following correspondingly applies for the remaining sensors:
LT coding for simple Sensor 1 at complex sensor: 0.5.1.1.1
LT coding for second simple Sensor 2 at complex sensor: 0.5.1.1.2
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