Further information about the possible states of the LEDs can be found in the following
document:
"SCALANCE X-200" Operating Instructions (https://support.industry.siemens.com/cs/ww/en/
view/102051962)
NOTICE
Removing the HT 10 from the connection box advanced
Removing the HT 10 from the connection box advanced closes the emergency stop circuit and
cancels the stop state of the monitored system, irrespective of whether the emergency stop
button on the HT 10 had been pressed.
Switching states of the emergency stop circuit
HT 10 Emergency
Stop button
Switching status, emergency stop circuit
Connected Not pressed Emergency stop circuit in the connection box remains
closed.
Connected Pressed The emergency stop circuit in the connection box is open.
The monitored system is stopped.
Not connected - Emergency stop circuit in the connection box is closed.
The monitored system continues to run.
WARNING
Danger of death resulting from the premature emergency stop unlocking
Premature unlocking of the emergency stop can lead to death, serious injury and/or machine
damage.
If you have shut down the monitored system, you can only release the emergency stop button
or put the monitored system back into operation if the conditions that tripped the emergency
stop have been eliminated and a safe restart is ensured.
Connecting
4.4 SIMATIC connection box
Handheld Terminal HT 10
Equipment Manual, 09/2020, A5E47430965B AA 35
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