Applies To:
  • CitectSCADA
  • CitectHMI
Summary:

There is a 5 minute delay from when the ABTCP IODevice is enabled (IODeviceControl("Name",1,0) ) until communications first start displaying, when using an using an Ethernet to Serial converter that converts ABTCP5 to KE/DF1 (Digi IAP module). 

Solution:

To resolve this issue the following Special Options parameters should be used on the Boards form:
    A: Allows the TCPIP driver to be used from Cicode.
    K: Set the socket keepalive flag. (SO_KEEPALIVE)
    RC: Activates the reconnection retries on the reception of a close event. (FD_CLOSE)
    (FD_CLOSE) is only received if the Keepalive option is activated. 
    The RC: special options paramter can typically resolve issues where the TCP/IP driver is notified of the connection close.(FD_CLOSE) 
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