Unable to make multiple connections to Siemens S7-200 PLC

If one user is accessing the data from S7-200 PLC using the Invensys-Wonderware SIDirect DAServer; the PLC is not allowing the other users working from other nodes to access data using SIDitect DAServer. The PLC is allowing only one connection to it.
The connections are using Ethernet.
Any help to solve this will be greatly appreciated.

If you want more than one connection, I suggest you us an other PLC. This is one of the limitations of this type of PLCs. It comes together with the fact that it is cheaper than e.g. an S7-300.

Kind regards,

If you want to allow mutiple connections to the PLC you will need to configure additional connections in the ethernet card. The default is for only one connection to be configured.