Modicon M340 Plc Page 2-15 Communication

2/15 Functions (continued) Functions (continued) SNMP network management service From a network management station, SNMP (Simple Network Management Protocol) monitors and checks all components of the Ethernet architecture and thus ensures quick diagnostics in the event of a problem. It is used to: b Interrogate network components such as computer stations, routers, switches, bridges or terminal devices in order to view their status. b Obtain statistics about the network to which the devices are connected. This network management software complies with the conventional client/server model. However, to avoid confusion with other communication protocols that use this terminology, we talk instead about: b Network manager for the client application that operates on the computer station. b SNMP agent for the network device server application. Transparent Ready devices can be managed by any SNMP network manager, including HP Openview and IBM Netview. Standard SNMP (Simple Network Management Protocol) is used to access configuration and management objects contained in the device MIBs (Management Information Bases). These MIBs must comply with certain standards to be accessed by any commercially-available manager, but depending on the complexity of products, manufacturers can add certain objects to private databases. The Transparent Ready private MIB presents management objects specific to the Schneider Electric offer. These objects simplify the installation, setup and maintenance of Transparent Ready devices in an open environment using standard network management tools. Transparent Ready devices support 2 levels of SNMP network management: b The Standard MIB II interface: This interface accesses a first level of network management. It enables the manager to identify the devices making up the architecture and retrieve general information about the configuration and operation of Ethernet Modbus/TCP interfaces. b The Transparent Ready MIB interface: This interface improves the management of Transparent Ready devices. This MIB has a set of data enabling the network management system to supervise all the Transparent Ready services. The Transparent Ready MIB can be downloaded from the FTP server of any Transparent Ready Ethernet module in a PLC. Modicon M340 automation platform Ethernet Modbus/TCP network Ethernet Modbus/TCP communication services Automatic recognition of IP devices via the ConneXview diagnostic software for Ethernet industrial networks Processors: page 1/8 Ruggedized Modicon M340 modules: page 3/2 2 1 3 4 5 6 7 8 9 10 2 1 3 4 5 6 7 8 9 10

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