Reaction To Cpu Stop - Siemens SIMATIC ET 200SP Manual

Configuring/address space
4.4 Control and feedback interface
Procedure
To enable the pulse output, proceed as follows:
1. Set the Control_by_PLC, Enable_Setpoint and Enable_Ramp_Generator control bits to TRUE
and the On_OFF1, No_Coast_Stop_OFF2, No_Quick_Stop_OFF3 and Enable_Operation bits
to FALSE.
State S1 is reached: Switching on of the pulse output is still inhibited. The feedback bit
Switching_On_Inhibited is set to TRUE.
2. Set the No_Coast_Stop_OFF2 and No_Quick_Stop_OFF3 control bits to TRUE.
Status S2 is reached: The pulse output is ready to switch on. The feedback bit
Ready_To_Switch_On is set to TRUE. The feedback bit Switching_On_Inhibited is set to
FALSE.
3. Set the On_OFF1 control bit to TRUE.
State S3 is reached: The pulse output is ready to switch on. The feedback bit
Ready_To_Operate is set to TRUE.
4. Set the Enable_Operation control bit to TRUE.
5. If you have configured a drive enable output, the module sets this to high level.
The drive is enabled.
6. If you have configured a ready input, wait for the ready signal of the drive.
As soon as the ready input is at high level, state S4 is reached: Operation is enabled. The
pulse output starts. The feedback bit Operation_Enabled is set to TRUE. You can control the
setpoint using the NSOLL_A control value.
4.4.4

Reaction to CPU STOP

The following overview shows the reaction of the technology module to a transition of the
CPU to STOP. The reaction is not configurable.
Table 4- 5
RUN-STOP transition
STOP-RUN transition
40
Reaction of technology module to CPU STOP
Reaction of technology module
The technology module executes a Coast Stop (OFF2), which causes the
pulse output to stop and the drive to coast down. If you are using a drive
enable, the digital output CHn.ED is reset immediately.
The control interface is no longer evaluated. The feedback interface con-
tinues returning the last acquired values. The feedback interface contin-
ues signaling diagnostic information using the Fault_Present,
Sensor_Error and Parking_Sensor_Active bits.
Active functions, e.g. for the reference switch, are aborted.
Note:
These outputs can retain a high level since no more pulses are output and
the current status of the pulse output signals CHn.P/A and CHn.D/B is
maintained depending on the signal type.
The configuration of the technology module is not reset. The feedback
interface keeps the last acquired position value (G1_XIST1).
Technology module TM PTO 2x24V (6ES7138‑6EB00‑0BA0)
Equipment Manual, 09/2021, A5E50983437-AA