HSMS T8 timeout. Also called network character timeout. The unit is a second.
Even if the HSMS connection is not cut off, if data is broken off for a short while during receipt of one message, it will be unable to determine whether or not what comes next is a continuation of the message. If the time allotted by the T8 timer elapses, it will be deemed a "communication failure", and the result will be disconnection.
It is similar to a SECS-I T1 timeout.
void SetT8(short sNewValue);