Status Flags (*_Slvsta) - Omron CJ1W-PRT21 Operation Manual

3 Data Exchange with the CPU Unit
Name of Device Variable for CJ-
series Unit
*_StartCommCmd
*_StopCommCmd
Additional Information
In the event start communication and stop communication are both set from 0 to 1 at the same
moment, communication will be enabled (default value).
3-6-2

Status Flags (*_SlvSta)

The CJ1W-PRT21 indicates its status in the second CIO word (device variable *_Sta) allocated via the
Machine No. setting. The lower byte shows the PROFIBUS-DP related status information and the
higher byte indicates configuration errors. At power-on, or after a reset of the unit, the initial value shall
be 0000. During normal operation only the data exchange active flag (*_DatXchgActSta) will be TRUE.
15 14 13 12 11 10
*_SlvSta
3-16
Type R/W Description
BOOL RW Start Commu-
nication
BOOL RW Stop Commu-
nication
9 8 7 6 5 4 3 2
CJ-series PROFIBUS Slave Unit Operation Manual for NJ-series CPU Unit (W510)
Function
FALSETRUE:
PROFIBUS-DP communication will be enabled.
If the communication is already enabled, no
specific action is taken.
TRUEFALSE:
No action.
FALSETRUE:
PROFIBUS-DP communication will be disabled
(Slave Offline). If the communication is already
disabled, no specific action is taken.
TRUEFALSE:
No action.
1 0
*_DatXchgActSta
*_ClearSta
*_FreezeSta
*_SyncSta
*_WdtDsblSta
*_WdtTmBaseSta
*_FailSafeEnblSta
*_ParamErr
*_StartAdrInErr
*_EndAdrInErr
*_StartAdrOutErr
*_EndAdrOutErr