Lenze I/O system 1000 - Page 322

Lenze · I/O system 1000 · Reference Manual · DMS 5.0 EN · 09/2016 · TD17 322
6 PROFIBUS communication
6.11 Diagnostics
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Diagnosealarm
Process alarm
More information on the diagnostic data of a process alarm (bytes x + 4 to x + 7) can be found in the
respective module description.
Structure of diagnostic alarm – byte x + 4 ... x + 20
Byte Function
x + 4 • Bit 0: Module fault, i.e. an error has been detected
• Bit 1: Internal error in the module
• Bit 2: External error (module is not accessible anymore)
• Bit 3: Channel error in the module
• Bit 4: External supply voltage is missing
• Bit 5, 6: Reserved
• Bit 7: Parameterisation error
x + 5 Bit 3 ... 0: Module class
• 0b1111: Digital module
• 0b0101: Analog module
• 0b1000: FM
• 0b0111: ETS, CP
Bit 4: channel information available
Bit 7 ... 5:
•0 (fixed)
x + 6 see module description
x + 7 • Bit 5 ... 0: Reserved
• Bit 6: Process alarm lost
•Bit 7: Reserved
x + 8 Channel type
• 0x70: Module with digital inputs
• 0x71: Module with analog inputs
• 0x72: Module with digital outputs
• 0x73: Module with analog outputs
• 0x74: Module with analog inputs and outputs
• 0x76: Counter
x + 9 Number of diagnostic bits per channel
x + 10 Number of channels per module
x + 11 Position (channel) of the diagnostic event
x + 12 Diagnostic event for channel/channel group 0
For assignment, see module description
... ...
x + 19 Diagnostic event for channel/channel group 7
For assignment, see module description
x + 20 μs ticker (4 bytes)
Value of the μs ticker when the diagnostic alarm occurs