The purpose of this technical note is to explain the network ports necessary for proper VIMNet Explorer communications to Virtual IO Module (VIM) hardware on the network.
VIMNet Explorer provides intuitive network setup for configuring MYNAH's VIM drivers. However, on networks where a Network Firewall blocks certain network ports, the communication from VIMNet Explorer to a VIM can encounter issues. Listed in the table below are the exact port numbers VIMNet Explorer and a VIM listens on and the origin ports of those messages. If any of the ports listed are blocked, VIMNet Explorer will not be able to properly communicate with VIM hardware. For more information on opening firewall ports, please refer to each firewall's documentation or contact your Network Administrator. Please refer to MYNAH Technologies' DeltaV Virtual IO Module Network Gateway knowledge based article for a complete description of VIM features, description, specifications, supported Industrial Ethernet protocols, and firmware ordering information.
VIMNet Explorer and VIM Network Ports
|Listening Side||Listen Port Number||Send Port Number||Protocol||Description|
|VIMNet Explorer||51000||1024||UDP||VIM report broadcasts|
|VIMNet Explorer||52001||52001||UDP||VIM logging|
|VIM||51001 + [last octet of VIM IP address] (e.x., IP 192.168.1.19 => Port 51020)||Variable (Windows uses the next available port)||TCP||VIM upgrade commands|
|VIM||52000 + [last octet of VIM IP address]||Variable (Windows uses the next available port)||TCP / UDP||VIM configuration commands|
|VIM||1024||Variable (Windows uses the next available port)||UDP||VIM report broadcast request|
Recovering commissioned VIM
The Decommissioned VIMs List is populated based on periodic UDP messages sent automatically from all decommissioned and some commissioned VIMs on the network. When the Decommissioned VIMs List is refreshed manually, VIMNet Explorer sends a broadcast request to all VIMs to respond and, as shown above, this message originates from a variable port number on the PC running VIMNet Explorer. If this broadcast from VIMNet Explorer is blocked, commissioned VIMs that do not automatically report to VIMNet Explorer (ODVA and PROFINET) will not appear in VIMNet Explorer and cannot be recovered.
Industrial Ethernet Protocol Ports
The above information concerns only the communications between VIMNet Explorer and the VIM. Depending on the network layout desired, it may be necessary to understand the network ports used by each available Industrial Ethernet driver available from MYNAH. The ports used by each protocol are based on the specifications of each protocol and further information can be found in those specifications.
|Modbus TCP/IP||502 (default, also user configurable)||TCP||Connection to each Modbus TCP/IP device|
|EtherNet/IP||44818||TCP||Explicit Messages - UCMM(PCCC)|
|EtherNet/IP||2222||UDP||Implicit Messages - Class 1/3|
|FMC||1201 (default, also user configurable/TPU)||TCP||Connection to each TPU|
If you have any questions or concerns regarding this procedure, contact the MYNAH Support Team by opening a support ticket at MYNAH.com using your account. If you do not currently have an account at mynah.com, please click here for instructions on how to do so.
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