Lenze · I/O system 1000 · Reference Manual · DMS 5.0 EN · 09/2016 · TD17 320
6 PROFIBUS communication
6.11 Diagnostics
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6.11.4 Channel-related diagnostics
The channel-related diagnostics serves to obtain information about channel errors inside a module.
For using the channel-related diagnostics, the diagnostic alarm must be enabled for each module
via parameterisation. The channel-related diagnostics can be activated via parameterisation.
Note!
The maximum number of channel-related diagnostic messages is limited by the max.
total length of 122 bytes. By deactivating other diagnostic areas, you can enable these
areas for further channel-related diagnostic messages. 3 bytes are always used per
channel.
Diagnostic data for one channel
Byte Function
x Bit 5 ... 0:
• 0b000000 ... 0b111111: ID number of the module that provides the channel-related diagnostics
• PROFIBUS slot 1 has the ID number ’0’
...
• PROFIBUS slot 64 has the ID number ’63’
Bit 7, 6:
• 0b10 (fix): Code for the channel-related diagnostics
x + 1 Bit 5 ... 0:
• 0b000000 .... 0b111111: Number of the channel or channel group that provides the diagnostics
Bit 7, 6: Module type
• 0b01: Input module
• 0b10: Output module
• 0b11: Input/output module
x + 2 Bit 4 ... 0: Error type according to PROFIBUS standard
• 0b00001: Short circuit
• 0b00010: Undervoltage (supply voltage)
• 0b00011: Overvoltage (supply voltage)
• 0b00100: Output module is overloaded
• 0b00101: Overtemperature of output module
• 0b00110: Cable break of the sensor or actuator
• 0b00111: Upper limit value exceeded
• 0b01000: Lower limit value exceeded
• 0b01001: Error (load voltage at the output, encoder supply, hardware error of the module)
Bit 4 ... 0: Manufacturer-specific error type
• 0b10000: Parameterisation error
• 0b10001: Module-specific error
• 0b10010: Defective fuse
• 0b10100: Earthing error
• 0b10101: Reference channel error
• 0b10110: Process alarm lost
• 0b11001: Safety-oriented switch-off
• 0b11010: External error
• 0b11010: Non-specific error
Bit 7 ... 5: Channel type
• 0b001: Bit
• 0b010: 2 bits
• 0b011: 4 bits
• 0b100: Byte
• 0b101: Word
• 0b110: 2 words