TCV e2 User Manual
14 of 36
P/N 857414 Rev A
07/01/2020
Open Protocol
This chapter describes the support for the Open Protocol in the TCV e2. Command MIDs and revisions
referred to in this document are from the Open Protocol Specification Release 1.3 Revision 1. The setup
menu for ACOP is located under the IP Info Group programming menu.
Port Number
Range: 0 to 65535
Default: 04545
This setting controls the network port on which the unit listens for Open Protocol connections to
interface 1. The network port used for interfaces 2 will be the following ports For example, the default
setup listens for interface 1 connections on port 4545 and interface 2 connections on port 4546. If this
setting were changed to 5000, the qualifier would listen for interface 1 connections on port 5000 and
interface 2 connections on port 5001.
Message Timeout
Range: 0 to 3600 seconds
Default: 10 seconds
This setting controls how long the qualifier will wait for a response from the client when sending a
subscription notification packet, such as MID 0015 or MID 0061. If no response is received within the
specified ack timeout, the qualifier will try again, up to the specified number of retries. If no response is
received after all retries, the ACOP connection is considered broken and will have to be re-established.
This will terminate all subscriptions that were established on that connection, regardless of which one
did not receive a response.
Resend Attempts
Range: 0 to 10
Default: 3
This setting controls how many times the qualifier will resend a subscription notification packet, such as
MID 0015 or MID 0061, to the client. If no response is received within the specified ack timeout, the
qualifier will try again, up to the specified number of retries. If no response is received after all retries,
the ACOP connection is considered broken and will have to be reestablished. This will terminate all
subscriptions that were established on that connection, regardless of which one did not receive a
response.
Keep Alive:
Range: 0 to 3600 seconds
Default: 30
This setting controls how long in seconds the unit will keep a connection open without any commands.
This value is recommended to be more than twice the rate at which the client will send keep alive
packets to ensure the connection is not closed due to a single missed keep alive packet. For example, if
the client is configured to send keep alive packets at a 20 second interval, the keep alive setting on the
unit should be more than 40 seconds. The keep alive function can be disabled by setting the keep alive
to 0. When set keep alive is set to 0, the unit will not close an Open Protocol connection due to
inactivity.
