BSAP Ethernet Connection Ports

Overview

Ethernet BSAP devices that use the same UDP port (which will usually be all of them) must use the same ACM connection. Set the IP address of the connection to the IP address of the device that's polled most frequently. Other devices will override the connection's IP address with their own IP address if the Connect String field is configured in each device's Connection tab. The Connect String must contain the IP address and port that the device uses in the format <IP Address>:<Port> (for example, 10.53.12.1:1234).

TCP/IP and TCP Listen Connection Types

All BSAP ControlWave devices use the UDP communication protocol for Ethernet communications.  UDP must be selected for the Connection Type on the Port tab in the ACM connection used to poll the device.  View the TCP/IP or TCP Listen section of the user guide for more details.

A UDP Receive Port must be specified and must be the same as the IBP Port configured in the BSAP device. This port number should also be used as the TCP/IP connection's main port number. ControlWave devices default to UDP port 1234, and it's very uncommon for this default to be changed.

You can confirm the value of a BSAP device's IBP Port using OpenBSI.  The screen capture below is taken from OpenBSI Netview V5.6 and shows the Ethernet communication settings of the BSAP device. To get to this screen, right click on the device in Netview, select RTU | RTU Configuration Parameters, and click the Load From RTU button.

ACM UDP BSAP Connection Type

BSAP devices that use the UDP BSAP connection must have a flag set to let the device know it will be using a UDP BSAP connection. Under the Ethernet settings, there's a field called "Use UDP BSAP Connection". Check this option.

The General and Options tabs of the UDP BSAP connection are the same as the TCP/IP connection. The Port tab has two fields that are the same as the TCP/IP Connection: UDP Receive Port and Lost Connection Timeout. It also has one new field: Max Concurrent Polls.  View the UDP BSAP Connection section for more information.

The UDP BSAP connection works by sending out multiple polls without waiting for responses. Max Concurrent Polls is the maximum number of these polls that it will send at once. If there are more polls ready to send, they'll be held back until one of the outstanding polls gets a response.