Slave Diagnostics Message - Omron GRT1 - 27-11-2006 Operation Manual

The PROFIBUS Communication Unit supports diagnostics to allow the user system to automatically determine
problems, which can occur in the SmartSlice I/O system. The PROFIBUS Diagnostics consists of standard
diagnostics and possibly extended diagnostics.
B-1 Standard Diagnostics
Slave Diagnostics Byte 1: Station Status 1
Bit Name
00 Diag.Station_Non_Existent
01 Diag.Station_Not_Ready
02 Diag.Cfg_Fault
03 Diag.Ext_Diag
04 Diag.Not_Supported
05 Diag.Invalid_Slave_Response
06 Diag.Prm_Fault
07 Diag.Master_Lock
Appendix B

Slave Diagnostics Message

7 6 5 4 3 2 1 0
Byte 1
This bit is set by the Master Unit if the Unit does not respond to any of the request
messages sent by the master. If this bit is set the diagnostic bits contains the
state of the last diagnostic message or the initial value. The slave device sets this
bit to zero in case of a correct response.
This bit indicates that the Unit is not yet ready for data transfer. This also may be
caused by a SmartSlice Bus failure during start-up.
Set by the Unit, this bit indicates that the last received configuration data from the
Master Unit is rejected. The configuration data in the slave device differ from the
configuration sent by the Master Unit.
This bit indicates that the diagnostics message returned by the Unit contains
extended diagnostics, i.e. it contains more than the mandatory 6 bytes.
In case the Master Unit sent a message to the Unit, which is not supported, this
bit will be set.
This bit is set by the Master Unit if the Unit has returned an invalid response to a
Master request message. The slave device will set this bit to 0.
Set by the Unit, this bit indicates that the last received parameter data from the
Master Unit has been rejected. The parameter data in the Unit differ from the
parameter sent by the Master Unit.
This bit indicates that the Unit has been parameterized by another master. The
bit is set by the Master Unit, if the address in byte 4 differs from 255 and from the
Master Unit's own address. The Unit sets this bit to zero.
Diag.Station_Non_Existent
Diag.Station_Not_Ready
Diag.Cfg_Fault
Diag.Ext_Diag
Diag.Not_Supported
Diag.Invalid_Slave_Response
Diag.Prm_Fault
Diag.Master_Lock
Description
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