ALTUS Nexto Series User Manual

5. CONFIGURATION
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To configure this protocol, it is needed to do the following steps:
Add a protocol IEC 60870-5-104 Server instance to one of the available Ethernet channel. To realize this procedure
consult the section Inserting a Protocol Instance
Configure the Ethernet interface. To realize this procedure consult the section Ethernet Interfaces Configuration
Configure the general parameters of protocol IEC 60870-5-104 Server with connection mode Port or IP, and the TCP
port number when the selected connection mode is IP
Add and configure devices, defining the proper parameters
Add and configure the IEC 60870-5-104 mappings, specifying the variable name, type of object, object address, size,
range, dead band and type of dead band
Configure the link layer parameters, specifying the addresses, communication time-outs and communication parameters
Configure the application layer parameters, synchronism configuration, commands, as well as transmission mode of
Integrated Totals objects
The descriptions of each configuration are related below, in this section.
5.5.14.1. Type of data
The table below shows the supported variable type by the Nexto Series CPU for each protocol IEC 60870-5-104 data type.
Object Type IEC Variables Type
Single Point Information (M_SP_NA) BOOL
BIT
Double Point Information (M_DP_NA) DBP
Step Position Information (M_ST_NA) USINT
Measured Value, normalized value (M_ME_NA) INT
Measured Value, scaled value (M_ME_NB) INT
INT
UINT
Measured Value, short floating point value (M_ME_NC) DINT
UDINT
REAL
Integrated Totals (M_IT_NA) INT
DINT
Single Command (C_SC_NA) BOOL
BIT
Double Command (C_DC_NA) DBP
Regulating Step Command (C_RC_NA) DBP
Setting Point Command, normalized Value (C_SE_NA) INT
Setting Point Command, scaled Value (C_SE_NB) INT
Setting Point Command, short floating point Value (C_SE_NC) REAL
Table 142: Variables Declaration to IEC 60870-5-104
Notes:
Regulating Step Command: The Lower and Higher object states of the C_RC_NA are associated respectively to OFF
and ON internal DBP type states.
Step Position Information: According to item 7.3.1.5 of Standard IEC 60870-5-101, this 8 bit variable is compose by two
fields: value (defined by the 7 bits less significant) and transient (defined as the most significant bit, which indicates when the
measured device is transitioning).
Below, there is a code example for fields manipulation in an USINT type variable. Attention, because this code doesn’t
consist if the value is inside the range, therefore this consistency remains at user’s charge.
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ALTUS Nexto Series Specifications

General

Brand	ALTUS
Model	Nexto Series
Category	Computer Hardware
Language	English