EDS84DMOTPBUS EN 3.0 - 11/2011
L
75
Communication manual 8400 motec PROFIBUS
Diagnostics
Diagnostic data
11.4
Diagnostic data
Present diagnostic data are signalled to the master by the PROFIBUS slave via an alarm
message.
Errors and warnings of the controller are sent to the master as extended diagnostic
messages.
General structure of diagnostic messages
Byte
Description
1 Bit 0: Station does not exist (set by the master).
Bit 1: Slave is not ready for data exchange.
Bit 2: Configuration data do not correspond.
Bit 3: Slave has extended diagnostic data.
Bit 4: Requested function is not supported by the slave.
Bit 5: Slave response is invalid (set by the master)
Bit 6: Incorrect parameter setting
Bit 7: Slave has been parameterised by another master (set by the master).
2 Bit 0: Slave must be parameterised again.
Bit 1: Static diagnostics
Bit 2: Permanently set to "1".
Bit 3: Watchdog active
Bit 4: Freeze command received.
Bit 5: Sync command received.
Bit 6: Reserved
Bit 7: Slave is deactivated (set by the master).
3 Bit 7: Diagnostics overflow - amount of diagnostic information present in the slave is too large to fit
into one telegram.
4 Bits 0 ... 7: Master address after parameterisation ("0xFF" without parameterisation)
5 Bits 0 ... 7: ID number (high byte)
6 Bits 0 ... 7: ID number (low byte)
7 Header
• The header contains the block length of the advanced diagnostics including the header byte.
• In this case, the value of the entry is "0x0A" (bytes 7 ... 16 = 10 bytes).
8 Status_Type
• The value of this entry is fixed. For the following bit assignment it is "0x81":
–Bit 7 = 1: "status"
–Bit 0 = 1: "status message"
–Value of all other bits = 0
9 Slot_Number
• The value of the slot number is "0x00".
10 Specifier
• An indicated error is entered in the specifier with the identification "0x1" (status coming).
• An eliminated error is entered in the specifier with the identification "0x02" (status going).
• If no errors are indicated, the entry in the specifier has the value "0x00" (no further
differentiation).
11 Reserved
12
13 ... 16 Error code of the controller
Содержание E84DGFCp Series
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