Siemens SIMATIC ET 200SP Function Manual

Communications services
3.7 SNMP
Communication
58 Function Manual, 11/2019, A5E03735815-AH
3.7.2 Example: Disabling SNMP for a CPU 1516-3 PN/DP
Task
As the security guidelines in your network do not allow SNMP, you want to disable SNMP for
a CPU 1516-3 PN/DP.
Requirements
● CPU 1516-3 PN/DP with firmware version V2.0
● STEP 7 as of V14
Solution
First, create a data block that contains the structure of data record B071
H
. The figure below
shows the data block "Deactivate SNMP". The data block "Deactivate SNMP" contains the
data record B071
H
as well as additional tags that you use to transfer the data record. The tag
"snmp_deactivate" is used to trigger the job for WRREC. Place this tag in the retentive
memory area so that the value is also available in the startup OB (OB100).
Figure 3-15 Example: Data block for disabling SNMP
Transfer the data record B071
H
in the startup OB (OB100) to CPU 1516-3 PN/DP with the
WRREC instruction (write data record).

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