ProSoft Technology 5201-DFNT-104S - Manual (Page 54)

104S v2 ♦ ProLinx Gateway IEC-60870-5-104 (104S) Protocol Implementation
(Firmware v2.xx) Protocol Manual
Page 54 of 157
ProSoft Technology, Inc.
Counter Points
There are four modes of acquisition of integrated totals (M_IT_NA points) defined
by the protocol specification. The actual values may be memorized (copied)
periodically to frozen values by a freeze command received from the master or
initiated locally within the gateway.
The gateway supports the following modes:
Mode A - Local freeze with spontaneous transmission
Mode D - Counter interrogation commands from the master initiate the freeze
operation and the frozen values are reported spontaneously.
Example - Mode A
To use Mode A, configure the following parameters:
March 19, 2010