Siemens SIMATIC ET 200S - General Technical Specifications

1PosSSI/Digital
5.7 CPU /Master Stop and RESET State
ET 200S Positioning
Operating Instructions, 05/2007, A5E00124871-04
233
5.7 CPU/Master Stop and RESET State
Behavior at CPU-Master-STOP
Behavior at CPU-Master-STOP Response of the 1PosSSI/Digital
• Due to power-off of the CPU/DP master
or
• Due to power-off of the IM 151/ IM 151 FO
or
• Due to failure of DP transmission
or
• Due to change from RUN to STOP
• The current run is stopped.
• All 3 digital outputs are set to 0.
• Feedback bit POS_ERR = 0
• Feedback bit POS_DONE = 1
Exiting the CPU-Master-STOP Status
Exiting the CPU-Master-STOP Status Response of the 1PosSSI/Digital
• At power-on of the CPU/DP master
or
• At power-on of the IM 151/ IM 151 FO
or
• After failure of the DP transmission
or
• After a change from STOP to RUN
• The feedback interface of the 1PosSSI/Digital remains
current.
• The axis remains synchronized, and the actual value is
current.
• The moved encoder range remains valid.
• The changed switch-off and switchover differences and the
path difference for the monitoring of the direction of rotation
remain valid.
• An initiated JOB 10: Latch function remains active.
• The feedback bit selected with JOB 15 is current.
RESET State of the 1PosSSI/Digital
RESET Status of the 1PosSSI/Digital and Modification
of the Parameters of the 1PosSSI/Digital
Response of the 1PosSSI/Digital
• By changing the parameters of the 1PosSSI/Digital
and downloading the parameter assignment and
configuration of the ET 200S station to the CPU/ DP
master
or
• As a result of power-on of the power module of the
1PosSSI/Digital
or
• Inserting the 1PosSSI/Digital in an energized state
• The axis is synchronized, and the actual value corresponds
to the current encoder value.
• The encoder range has not been moved.
• The switch-off and switchover difference is accepted from
the parameters.
• The path difference for the monitoring of the direction of
rotation is set at double the switch-off difference.
• JOB 10: Latch function is not active.
• The residual distance is displayed as a feedback value.