Technical data
  Technology DBs 
CPU 317T: Technology Functions 
A5E00251798-03 
7-17 
Variable ErrorStatus.xxx 
The bits in variable ErrorStatus.xxx return information on various errors at the 
external encoder. 
Bit
No.
Variable  Meaning of the status TRUE 
0  ErrorStatus.SystemFault  Internal system error 
1  ErrorStatus.ConfigFault  Faulty TO configuration 
2  ErrorStatus.UserFault  The user program has caused an error by outputting an illegal 
command 
3  ErrorStatus.FaultDrive  The external encoder or technology object reports an error 
4 ErrorStatus.Reserve4  Not used 
5 ErrorStatus.FollowingWarning  Dynamic following error monitoring function reports violation of 
warning limits 
6 ErrorStatus.FollowingError  Dynamic following error monitoring function reports violation of 
window limits 
7  ErrorStatus.StandstillFault  The external encoder has moved out the standstill window, or 
could not reach the standstill window in the specified time. 
8  ErrorStatus.PositioningError  The axis could not reach the positioning window within the 
specified time. 
9 ErrorStatus.SynchronOpError  Not used 
10  ErrorStatus.DynamicError  Dynamic limits were exceeded 
11 ErrorStatus.ClampingError  Clamping error. 
The axis has overrun the "Position tolerance after fixed end stop 
detection" without having received a new motion command. 
(Position tolerance setting in S7T Config > Limits > "Fixed end 
stop" tab > Parameter "Position tolerance after fixed end stop 
detection".) 
12 ErrorStatus.SoftwareLimitPos  Not used 
13 ErrorStatus.SoftwareLimitNeg  Not used 
14 ErrorStatus.LimitSwitchActive  Not used 
15 ErrorStatus.SensorFreqViolation  The encoder frequency is out of limits. 
16  ErrorStatus.ReferenceNotFound  Reference cam or zero pulse not found when homing 
17  ErrorStatus.ZeroMonitoring  Zero pulse monitoring has detected an error (not a homing 
error) 
18 ErrorStatus.Overspeed  Not used 
19 ErrorStatus.FollowObjectError  Not used 
20 ErrorStatus. 
SupImpFollowObjectError 
Not used 










