Diagnostics and maintenance   
6.2 Diagnostics with SNMP 
  CP 1542SP-1, CP 1542SP-1 IRC, CP 1543SP-1 
100  Operating Instructions, 01/2017, C79000-G8976-C426-03 
 
Diagnostics with SNMP 
Requirement 
The requirement for using SNMP is the enabling of the function in the configuration, see 
section SNMP (Page 45). 
SNMP (Simple Network Management Protocol) 
SNMP is a protocol for diagnostics and managing networks and nodes in the network. To 
transmit data, SNMP uses the connectionless UDP protocol. 
The information on the properties of SNMP-compliant devices is entered in MIB files (MIB = 
Management Information Base). 
You will find detailed information on SNMP and the Siemens Automation MIB in the manual 
/6/ (Page 120). 
Scope of performance of the CPs 
The CPs support the following SNMP version: 
● 
CP 1542SP-1, CP 1542SP-1 IRC
 
–  SNMPv1 
● 
 
–  SNMPv1 
–  SNMPv3 (with activated Security functions) 
Traps are not supported by the CP. 
The CPs support the following MIBs: 
● 
 
The CP supports the following groups of MIB objects: 
–  System 
–  Interfaces 
–  IP 
–  ICMP 
–  TCP 
–  UDP 
–  SNMP 
● 
 
● 
 
Note the rights for writing to the MIB objects, see the next section (SNMPv3).