Siemens SIMATIC S7 System Manual page 378

102BTechnology instructions
9.3 Basic motion control
Status
Constant velocity
Decelerating
Table 9- 54 Status of the motion mode
Status
Positioning
Speed Command
Homing
Table 9- 55 Error bits
Error
Min software limit reached
Min software limit exceeded
Max software limit reached
Max software limit exceeded
Negative hardware limit
Positive hardware limit
PTO and HSC already used
Configuration error
General Error
378
Description
The axis travels at constant velocity.
(Tag of technology object: <Axis name>.StatusBits.ConstantVelocity)
The axis decelerates (slows down).
(Tag of technology object: <Axis name>.StatusBits.Deceleration)
Description
The axis executes a positioning task of motion control instruction "MC_MoveAbsolute" or
"MC_MoveRelative" or of the control panel.
(Tag of technology object: <Axis name>.StatusBits.PositioningCommand)
The axis executes a task at set speed of motion control instruction "MC_MoveVelocity" or
"MC_MoveJog" or of the control panel.
(Tag of technology object: <Axis name>.StatusBits.SpeedCommand)
The axis executes a homing task of motion control instruction "MC_Home" or the control
panel.
(Tag of technology object: <Axis name>.StatusBits.Homing)
Description
The lower software limit switch has been reached.
(Tag of technology object: <Axis name>.ErrorBits.SwLimitMinReached)
The lower software limit switch has been exceeded.
(Tag of technology object: <Axis name>.ErrorBits.SwLimitMinExceeded)
The upper software limit switch has been reached.
(Tag of technology object: <Axis name>.ErrorBits.SwLimitMaxReached)
The upper software limit switch has been exceeded.
(Tag of technology object: <Axis name>.ErrorBits.SwLimitMaxExceeded)
The lower hardware limit switch has been approached.
(Tag of technology object: <Axis name>.ErrorBits.HwLimitMin)
The upper hardware limit switch has been approached.
(Tag of technology object: <Axis name>.ErrorBits.HwLimitMax)
A second axis is using the same PTO and HSC and is enabled with "MC_Power".
(Tag of technology object: <Axis name>.ErrorBits.HwUsed)
The "Axis" technology object was incorrectly configured or editable configuration data
were modified incorrectly during runtime of the user program.
(Tag of technology object: <Axis name>.ErrorBits.ConfigFault)
An internal error has occurred.
(Tag of technology object: <Axis name>.ErrorBits.SystemFault)
S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05