Channel configuration

Protocol options

t0 - Timeout of Connection establishment(s) - Maximum time in seconds acceptable for establishing Ip TCP connection with slave IED. After this time close the connection and retry. Values allowed between 1 and 255.
t1 - Timeout of send or test APDUs(s) -Time in maximum seconds acceptable to send or test APDUs, after receiving confirmation of start dt submission. Values allowed between 1 and 255.
t2 - Timeout for ack in case of no data(s)- Time in maximum seconds of waiting for the arrival of new information message, after any has arrived, for the sending of "acknowledgment" message of the receipt of the last message received. A message with the sequence number of the last received will be sent. Values allowed between 1 and 255. And t2 should be less than t1.
t3 - Timeout for sending test frames(s) - Time in maximum seconds of waiting for the arrival of some information message, and the TCP-IP connection is established. A TEST-FR message will then be sent. Values allowed between 1 and 255.
Password for commands: To increase security when sending commands, typically initiated only by a change in the state of a tag, you can specify here a password of up to 9 digits, which will be checked by the communication module against the current value, at the time of receipt of the command, with the attribute EstimatedValue of the tag involved in the command. So in the command send operation by a window, script, etc. this number should be loaded into this attribute. The communication module, after executing the command, passes to ZERO the value of the Estimated Value. Leaving this option with zero, the check will not be done.
Logging Level - You can choose from this list the way the log works created by the communication module.

The figure below shows the completion of these fields in the channel:

Settings

TCP/IP channels:

• NodeConnections: Defines the maximum number of parallel requests that will be sent to each node (asynchronous communication)