Output Disable Switch; Pulling The I/O Module In Runtime - Siemens SIMATIC ET 200SP HA Equipment Manual

• Reference identification label
• Shield connector
4.3

Output disable switch

Definition
The output disable switch switches the I/O module load-free.
NOTICE
Dangerous plant conditions possible (disconnect the load)
If you want to pull the I/O module in runtime, you have to press the output disable switch for
3 seconds for the I/O module to be load free (deenergized).
Pulling the I/O module in runtime (Page 13)
4.4

Pulling the I/O module in runtime

Requirement
The normally closed contacts are closed.
Procedure
Press the output disable switch for 3 seconds.
Note
Pressing the output disable switch interrupts any ongoing firmware update. A firmware update
cannot be performed when the device is deenergized.
Result
The I/O module is load-free.
The LED DIAG flashes red, the LED MT lights up yellow and the I/O module generates a
diagnostics message.
Status and error displays (Page 25)
DI 16x24VDC HA
Equipment Manual, 10/2020, A5E39265608-AD
Product overview
4.4 Pulling the I/O module in runtime
13