The NETMPI IO Server supports polling data from Siemens PLCs connected through an eLINK adapter.

For polling data from Siemens PLCs directly through the PLC’s Ethernet, PPI, or MPI interface, see the S73&400 IO server page and S7200 IO server page.

Topic Configuration

Topics give common properties to groups of NETMPI tags such as whether polling is enabled or disabled for these tags, their poll rate, and the destination device type and address.

Global Device Address

The Global Device Address is a global parameter that identifies the device to be polled.

If an address is specified here, it will replace (overload) the address defined at the tag level.

Clicking in this field will enable an address helper to assist with selecting the appropriate address syntax for your device.

The address syntax is the MPI node of the PLC followed by the IP address of the eLink adapter.

When the address entered is a valid syntax, the contents of the field will appear green. When the syntax is invalid, the contents of the field will appear in red.

Poll rate

Defines the refresh rate of the tag name.

Enter the refresh rate in ms (milliseconds) for the tags associated with this topic. The default value is 2000 ms (2 seconds).

More information about these parameters and the NETMPI IO server tags can be found in the RG-0007-00 - IO Servers.