
1–58
345 TRANSFORMER PROTECTION SYSTEM – COMMUNICATIONS GUIDE
ETHERNET INTERFACE
CHAPTER 1: COMMUNICATIONS GUIDE
IEC 60870-5-104
protocol settings
Select the
Settings > Communications > IEC 60870-5-104 > Protocol
menu item to open
the IEC 60870-5-104 protocol configuration window.
NOTE
NOTE:
The Client Address setpoints marked "*" are shared with DNP, as only one protocol can be
active at a time.
The 345 can be used as an IEC 60870-5-104 slave device connected to a maximum of two
masters (usually either an RTU or a SCADA master station). Since the 345 maintains two
sets of IEC 60870-5-104 data change buffers, no more than two masters should actively
communicate with the 345 at one time. Five client address settings are used to filter which
master is suitable for communicating with 345.
The IEC 60870-5-104 and DNP protocols cannot be used simultaneously. When the IEC
60870-5-104 FUNCTION setting is set to “Enabled”, the DNP protocol will not be
operational.
If IEC Cyclic Data Period is set to 0 there will be no cyclic data response.
Some other settings can be added to select the first address of the different Object
Information. These settings can be removed to be consistent with the UR but are very
useful for integrating the relay into a system.
By default, the Object Information Address for the different data will be as follows:
M_SP (Single Points) = 1000
M_ME (Measured Value) = 2000
M_IT (Integrated Totals) = 3000
C_SC or C_DC (Single or Double Command) = 4000
IEC 60870-5-104 point
lists
The Single Points (M_SP) can be configured to a maximum of 64 points. The value for each
point is user-programmable and can be configured by assigning FlexLogic™ operands.
Up to 32 Measured values (M_ME) can be configured assigning FlexAnalog parameters to
each data point.
The Commands points (C_SC or C_DC) can be configured to a maximum of 16 points
selecting data from a list of Virtual Inputs and Force Coil commands.
The table below shows all the Configurable Points settings:
Settings
Range
Default
GENERAL
IEC 60870-5-104 Function
Disabled, Enabled
Disabled
IEC TCP Port
1 to 65535
2404
IEC Common Address of ASDU
0 to 65535
0
IEC Cyclic Data Period
0 to 65535 s
60 s
IEC TCP Connection Timeout
10 to 300 s
120 s
CLIENT ADDRESS
Client Address 1*
0.0.0.0
Client Address 2*
0.0.0.0
Client Address 3*
0.0.0.0
Client Address 4*
0.0.0.0
Client Address 5*
0.0.0.0
Settings
Range
Default
Object Information Address Binary
1 to 16777215
1000
Object Information Address Analog
1 to 16777215
2000
Object Information Address Counters
1 to 16777215
3000
Object Information Address Command
1 to 16777215
4000