3 Configuration Software
3-30
CJ-series PROFIBUS Master Unit Operation Manual for NJ-series CPU Unit (W509)
Indicator Description
Master Status
OPERATE Master Unit is in OPERATE mode.
STOP Master Unit is in STOP mode.
CLEAR Master Unit is in CLEAR mode.
OFFLINE Master Unit is in OFFLINE mode.
Data Exchange When set to TRUE, it indicates that the Master Unit is in Data Exchange with
all its allocated and enabled slave devices.
Auto-Clear
enabled
Auto-Clear function has been enabled in the downloaded configuration.
Valid Configura-
tion
The Master Unit contains a valid configuration.
Master Errors
Disturbed Bus
error
When set to TRUE, the Disturbed Bus error indicates that distorted mes-
sages have been received by the Unit. This may occur if the network is not
properly terminated or a cable is used, which is too long for the selected
baud rate.
PROFIBUS Pro-
tocol Error
When set to TRUE, the PROFIBUS Protocol Error indicates that an error
has occurred in the protocol handling, e.g. a transmitted token frame could
not be read back. The Master Unit has switched to OFFLINE.
Master Address
Duplication Error
Indicates that a second Master with the same address has been detected on
the Bus. The Master Unit has switched to OFFLINE.
Hardware error When set to TRUE, the Hardware Error indicates that an error has occurred
on the bus, e.g. message exceeding 256 bytes, broken messages, faulty
bus timing, or devices beyond the HSA have been detected. The Master
Unit has switched to OFFLINE.
Mode Command
Error
When set to TRUE, it indicates that two switches in the CIO switch word
(see section 4-2-1 Software Switches (*_SwCmd)) were set simultaneously.
Parameter error The Parameter set error indicates if an error has been detected in the con-
tents of the Parameters set while configuring the PROFIBUS interface, using
these parameters.
Unit Status
Unit Error A Unit error indicates that a new error has been set in the Unit Status word
(see section 4-2-3 Unit Status (*_UnitSta)).
Master Error A Master Error indicates that a new error has been set in the Master Errors
word (see 4-2-5 Master Errors (*_MstrErrSta)).
Local Parameter
Storage Error
An error has occurred when storing the configuration to non-volatile mem-
ory.
Local Parameter
Load Error
An error has occurred when loading the configuration from non-volatile
memory.
File Read error When set to TRUE, this indicates that a transfer from Memory Card to the
Unit has failed. The Unit must be re-configured.
Unit Memory
error
When set to TRUE, it indicates that an error has occurred when writing the
Error Log to the Non-volatile memory.
Error Log
Updated
The Error Log contains new entries, since the last time it was read or
cleared.
Parameter Stor-
age in Progress
Configuration Parameters are being transferred to or from the Unit.
Slave
Status
Slave Diagnos-
tics Received
When set to TRUE, it indicates that new slave diagnostics have been
received.
All Slaves in
Data Exchange
When set to TRUE, it indicates that all slaves are in data exchange with the
Master Unit.
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