Siemens SIMATIC ET 200SP System Manual

Protection
9.4 Know-how protection
Distributed I/O system
System Manual, 09/2019, A5E03576849-AJ
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Global data blocks and array data blocks
You protect global data blocks (global DBs) from unauthorized access with know-how
protection. If you do not have the valid password, you can read the global data block but not
change it.
Know-how protection is not available for array data blocks (array DBs).
Setting up block know-how protection
To set up block know-how protection, follow these steps:
1. Open the properties of the block in question.
2. Select the "Protection" option under "General".
Figure 9-2 Setting up block know-how protection (1)
3. Click the "Protection" button to display the "Know-how protection" dialog.
Figure 9-3 Setting up block know-how protection (2)
4. Click the "Define" button to open the "Define Password" dialog.
Figure 9-4 Setting up block know-how protection (3)
5. Enter the new password in the "New password" box. Enter the same password in the
"Confirm password" box.

Siemens SIMATIC ET 200SP Specifications

General

System Type	Distributed I/O System
Mounting	DIN Rail
Communication Protocol	PROFINET, PROFIBUS
IP Rating	IP20
Category	I/O Systems
Supply Voltage	24 V DC
Modularity	Yes
Hot Swapping	Yes
Storage Temperature	-40°C to +70°C
Digital Inputs	Yes
Digital Outputs	Yes
Analog Inputs	Yes
Analog Outputs	Yes
Communication Interface	PROFINET, PROFIBUS
Number of Modules	Up to 64
Relative Humidity	5 to 95% (non-condensing)
Operating Temperature	-25°C to +60°C