Omron CJ Series User Manual

Appendices
A-26
CJ-series PROFIBUS Master Unit Operation Manual for NJ-series CPU Unit (W509)
 Slave Diagnostics Byte 2
A layout of Byte 2 is shown below. This byte is mapped to the low-byte of Word D.
 Slave Diagnostics Byte 3
A layout of Byte 3 is shown below. This byte is mapped to the high-byte of Word D + 1.
Bit Name Description
00 Diag.Prm_Req This bit is set by the slave device and indicates that it needs to be (re-)aparame-
terized. The slave device is not in Data_Exchange with the Master Unit. The bit
remains on as long as it has not been parameterized successfully.
01 Diag.Stat_Diag This bit indicates static diagnostics at the slave device. The Master Unit will
repeatedly request diagnostics data. As long as this bit is set, Data_Exchange
with the Master Unit is not being performed.
02 Reserved This bit is reserved and always set to 1 by the slave device.
03 Diag.WD_On If the watchdog has been enabled at the slave device (through the appropriate
setting in the parameterization message) this bit will be set.
04 Diag.Freeze_Mode If the slave device has been set to the Freeze mode, using the global command,
this bit will be set to on. The bit will be set to off, if an Unfreeze command has
been received.
05 Diag.Sync_Mode If the slave device has been set to the Sync mode, using the global command,
this bit will be set to on. The bit will be set to off, if an Unsync command has been
received.
06 Reserved This bit is reserved.
07 Diag.Deactivated This bit is set by the Master Unit, indicating that the slave device has been dis-
abled. The slave device is allocated to the Master Unit, but removed from cyclic
processing.
Bit Name Description
00 to 06 Reserved These bits are reserved and always set to 0 by the slave device.
07 Diag.Ext_Diag_Overflow If set, this bit indicates that there exists more diagnostic information than speci-
fied in Ext_Diag_Data. This bit will, for example, be set if the slave device has
more diagnostics available than it can enter in its send buffer. This bit will also be
set if the Master Unit receives more diagnostic information than it can enter in its
diagnostic buffer.
Byte 2
Diag.Deactivated
Diag.Sync_Mode
Diag.Freeze_Mode
Diag.WD_On
Diag.Stat_Diag
Diag.Prm_Req
76543210
Reserved
Byte 3
Diag.Ext_Diag_Overflow
76543210

Omron CJ Series Specifications

General

Brand	Omron
Model	CJ Series
Category	Controller
Language	English