SMAR FRI303, Инструкция по эксплуатации

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FRI303 – Operation and Maintenance, Instruction Manual
3.6
Cyclical Diagnosis
Via cyclic communication is possible to verify diagnostics from the
FRI303
using the Profibus Master
Class 1 or even via acyclic communication via Master Class 2. The Profibus-PA devices provide up
to 4 bytes standard diagnoses via Physcial Block (See figure 3.6. and 3.7) and when the most
significant bit of the fourth Byte is "1", the diagnose will extend the the information in more 6 bytes.
These Diagnosis bytes can also be monitored via cyclic tools.
Figure 3.6 – Cyclical Diagnosis
Figure 3.7 – Cyclic Diagnosis mapping for 4 bytes of Physical Block.
Unit_Diag_bit is described in the GSD file Profibus-PA device.
See below a description part of a GSD file for the 4 bytes and more detail:
;----------- Description of device related diagnosis: ---------------------
;
Unit_Diag_Bit(16) = "Error appears"
Unit_Diag_Bit(17) = "Error disappears"
;
;Byte 01
Unit_Diag_Bit(24) = "Hardware failure electronics"
Unit_Diag_Bit(25) = "Not used 25"
Unit_Diag_Bit(26) = "Not used 26"
Unit_Diag_Bit(27) = "Not used 27"
Unit_Diag_Bit(28) = "Memory error"
Unit_Diag_Bit(29) = "Not used 29"
Unit_Diag_Bit(30) = "Device not initialized"
Unit_Diag_Bit(31) = "Device initialization failed"
;Byte 02
Unit_Diag_Bit(32) = "Not used 32"