Operating hardware
4.2 Diagnostics with SNMP
CP 1626
Operating Instructions, 11/2018, C79000-G8976-C434-03
27
4.2.2
Variables of the MIB-II standard
Variables in the "System" directory
The following table shows several SNMP variables of the MIB II standard for monitoring the
device status from the "System" directory:
Variable
Access rights
Description
sysDescr
Read only
Contains a vendor-specific identification of the device, for
example "Siemens", "SIMATIC NET" or "CP 1626".
A string with up to 255 characters is used.
Data type: DisplayString
sysObjectID
Read only
Address (OID - Object Identifier) at which the device-specific
SNMP variables are accessible.
On the CP 1626, the OID is:
1.3.6.1.2.1.1.1.2.0
Note
The descriptions of the MIB objects not shown here can be found in the diagnostics manual
"SIMATIC NET Network Management Diagnostics and Configuration with SNMP".
Diagnostics manual (
https://support.industry.siemens.com/cs/ch/en/view/103949062
Variables in the "Interfaces" directory
The following table shows several SNMP variables for monitoring the device status from the
"Interface" directory:
SNMP variable
Access rights
Description
ifDescr
Read only
Description of and possibly other information for a port.
The possible value is string with a maximum of 255 characters;
for example "Siemens", "SIMATIC NET", "CP1626", "<MLFB>", "HW:<Hardware
Version>", "FW:<Firmware Version>", "Fast Ethernet Port <Port number>".
Explanation: The current value is entered in the pointed brackets.
Data type: DisplayString
ifNumber
Read only
Number of network interfaces
For a CP 1626, the value "6" is output for this variable (4 physic
al ports + 2 virtu-
al port for the 1626 itself).
Data type: Integer