Omron CS1W-PRM21 Operation Manual page 108

Allocated CIO Area Words
Bit Name
01 PROFIBUS proto-
col error
02 Double Master
address error
03 Hardware error
04 Reserved by sys-
to tem
11
12 Mode command
error
13 Parameter error
14 Reserved by sys-
to tem
15
94
Status Controlled
by
ON Unit The PROFIBUS Protocol error flag will be turned ON if an error has
occurred in the protocol handling, e.g. a transmitted token frame could
not be read back.
Note In case this error occurs, the Unit will automatically switch to
OFF Unit Indicates that no PROFIBUS protocol error has occurred.
ON Unit The Double Master Address error flag will be turned ON if there is
another master on the bus with the same with the same station address
as the CS1W-PRM21/CS1W-PRM21.
Note In case this error occurs, the Unit will automatically switch to
OFF Unit Indicates that no Double Master Address error has occurred.
ON Unit The Hardware error flag will be turned ON if an error has occurred on
the bus, e.g. message exceeding 256 bytes, broken messages, faulty
bus timing, or stations beyond the HSA have been detected.
Note In case this error occurs, the Unit will automatically switch to
OFF Unit Indicates that no Hardware error has occurred.
--- --- These bits will be set to OFF by the Unit.
ON Unit This bit will be turned ON, if
• more than one command mode switch has been set, i.e. Bit 00 to
• a mode command switch is set while the previous command is in
• a mode transition command is given and the Unit has detected that
If this bit is turned ON, it will remain so until a valid command is sent to
the Unit. The invalid mode command will be ignored.
OFF Unit If the bit flags have been cleared, the Unit will reset this bit to OFF.
ON Unit The Parameter set error will be turned to ON if an error has been
detected in the contents of the Parameters set while configuring the
PROFIBUS interface, using these parameters.
OFF Unit If the bit flags have been cleared, the Unit will reset this bit to OFF.
--- --- These bits will be set to OFF by the Unit.
Unit operation
OFF-LINE mode.
OFF-LINE mode.
OFF-LINE mode.
Bit 03 in Word n has been set, or
progress, or
it does not (yet) have a valid configuration or it detected an internal
error, either of which prevented it from reaching that mode, e.g.
Invalid Parameter set and transition to OPERATE mode.
Section 4-2