S100 single port Ethernet card may not able to connect over multicast to multiple devices or VFD's.

S100 single port Ethernet card may not able to connect over multicast to multiple devices or VFD's.

S100 Ethernet Single - Port Serial Option Card
Unicast support was not implemented until firmware version 3.05. Check COM06 to see what version Ethernet card you have. 

< 3.05 only supports Multicast
≥ 3.05 supports Multicast and Unicast







For S100 1-port EIP option only, multi cast has some issues when connecting with several VFDs. It could be unstable.  

But unicast does not have a limitation.
Therefore, we recommend using unicast when connecting several devices or VFD's.