ProSoft ProLinx 104S, Руководство по протоколу

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104S ♦ ProLinx Gateway IEC-60870-5-104 (104S) Protocol Implementation
(Firmware v3.00 and later) Protocol Manual
ProSoft Technology, Inc. Page 53 of 157
January 22, 2010
3.3 Using Monitor Points
The following monitor points are supported by the 104S gateway:
Symbol Description Data Size in
Database Addressing
Type
M_SP_NA Monitored Single-Points 1 bit Bit
M_DP_NA Monitored Dual-Points 2 bits Bit
M_ST_NA Monitored Step-Points 1 byte Byte
M_BO_NA Monitored 32-bit Bitstring Points 2 words Double-word
M_ME-NA Monitored Measured Normalized-Points 1 word Word
M_ME-NB Monitored Measured Scaled-Points 1 word Word
M-ME-NC Monitored Measured Short Floating Points 2 words Double-word
M_IT-NA Monitored Counter-Points 2 words Double-word
Each monitor point is identified by its Information Object Address (it should be
unique for each Common ASDU Address in the network). For each monitor point,
configure the following parameters:
Point # - The Information Object Address (IOA) of the point. It identifies the point in
the network.
DB Address - The database location in the 104S gateway associated with the point.
You must associate each point to a database address in the 104S gateway. The
interpretation of this parameter depends on the point type configured. For example,
for an M_SP_NA point, this value represents the bit address. For a M_ME_NA point,
this value represents the Word address.
Group(s) - This is the group definition for the point. It sets how the point will be
polled by the Client (cyclic or group interrogation). It can also be used to enable or
disable the event generation for one specific point. The group parameter is
discussed in the Data Communication section.
Deadband - Sets the deadband for each Measured point. If the value changes from
more than the configured deadband , the module gatewayenerate an event for this
point.
IV DB Bit - This feature allows the application to set the invalid (IV) quality bit of the
protocol for all the monitored ASDU types supported. If you enable this feature, the
other gateway protocol can determine the individual IV quality bit status of each point
you configured.