Skip to main content
H
HC_144888093-Newcomer
3-Newcomer
May 21, 2026
Question

Kepware Server 7 and modbus ModRSsim2 simulator

  • May 21, 2026
  • 1 reply
  • 16 views

Hi there, 

I’m trying to set up a connection between Modbus TCP driver in Kepware Server 7 and modbus ModRSsim2 simulator.
Port 502 and device ID = 1 are used in both ends.
When Kepware starts, it shows the following line i log window:

   Channel1 | Starting unsolicited communication. | Protocol = 'TCP', Port = 502.
   
Should it be something like Modbus TCP Client/Master mode instead ?

In Kepware Server 7 where do you switch between Modbus TCP Client/Master mode and Modbus TCP Server/Slave/Unsolicited mode when you set up a channel ?

Any guidance would be greatly appreciated.

Thanks in advance,

Henrik
 

1 reply

H
HC_144888093-NewcomerAuthor
3-Newcomer
May 21, 2026

Issue seems to be resolved now.

I tried to have Kepware and ModRSsim on different machines and that works.

Communication is fine and Kepware is no longer using unsolicited communication:

MODBUS_TCP_CHANNEL | All channels are subscribed to a virtual network or all devices are listening to remote addresses, stopping unsolicited communication.

 

    Terms & ConditionsAccessibility statement