ProSoft Technology PTQ-104S - Manual (Page 159)

48TPTQ-104S Rev 1 ♦ 47TQuantum Platform Reference
46TIEC 60870-5-104 Server for Quantum 12TUser Manual
TESTFR Requests
Connections that are unused (but opened) may be periodically tested in both
directions by sending test messages (TESTFR=act) which are confirmed by the
receiving station sending TESTFR=con messages. The PTQ-104S module can
be configured to periodically send this message using the following parameter:
In the example above, the module would send a TESTFR.ACT message 30
seconds after receiving the last message:
ProSoft Technology, Inc. Page 159 of 201
March 4, 2013