For incoming communication on controller COM ports, which is requested by another device, the flowchart must first use Listen for Incoming Communication and then use Accept Incoming Communication to establish a connection.
For incoming communication on serial modules, which is requested by another device, the flowchart uses the Open Outgoing Communication and Communication Open? commands to establish a connection.
This is the description in the 264th page of the user's Guide (PAC Control User s Guide). Is this description wrong?