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CHAPTER 4: SETPOINTS
FASTPATH:
IEC 60870-5-103
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
Each Measured value has a Parameter of measured value (P_ME_NB) associated to its
threshold.
The IEC 60870-5-104 Deadbands settings are used to determine when to trigger
spontaneous responses containing M_ME_NB_1 analog data. Each setting represents the
threshold value for each M_ME_NB_1 analog point.
For example, to trigger spontaneous responses from the 869 when a current value
changes by 15 A, the "Analog Point xx Deadband" setting should be set to 15. Note that
these settings are the default values of the deadbands. P_ME_NB_1 (parameter of
measured value, scaled value) points can be used to change threshold values, from the
default, for each individual M_ME_NB_1 analog point. There are three ways to send the
measurands to the Master station. The measurands are part of the General Group and
Group 2, so when a general interrogation or group 2 interrogation takes place all the
measurands are included in the response. Also, there is a cyclic data period setting where it
is configured in the scan period to send the measurands to the Master. And the last way, is
by sending spontaneously when a deadband overflow takes place. The IEC104 Channels
sub-menu information is shown below.
Commands are executed over the Binary Outputs. The first 8 Binary Outputs are
configured to receive Select/Operate Commands and the next 8 Binary Outputs are
configured to receive Direct Execute Commands.
The IEC104 CHANNEL 1 PORT and IEC104 CHANNEL 2 PORT settings select the
communications port assigned to the IEC104 protocol for each channel. When this setting
is set to "Network - TCP", the IEC104 protocol can be used over TCP/IP on channels 1 or 2.
The IEC104 NETWORK CLIENT ADDRESS settings can force the 869 to respond to a
maximum of two specific IEC104 masters which own the configured IP Addresses. The
settings in this sub-menu are shown below.
"IEC104 Channel 1 Port" takes the "Port Number 1" and "Client Address 1" to allow or reject
connections. The same method is used by channel 2.
GROUPS OF DATA
The data is organized into groups in order to provide values when the controlling station
requests them by a general or group interrogation.
Group 1 is set by the 96 Single Points (M_SP).
Group 2 is set by the 32 Measured values (M_ME).
Group 3 is set by the 32 Measured thresholds (P_ME).
These 96 Single Points and 32 Measured Values are also sent as a response to a General
Interrogation.
The Integrated Totals (M_IT) has its own Counter Group 1, and it is sent as a response to a
General Request Counter.
The point map for the 103 is different from the one shared by the IEC104 and DNP
protocols. IEC 60870-5-103 serial communications protocol is supported on the rear RS485
port only.
The DNP, 103 and Modbus can not be enabled simultaneously. Only one instance of
DNP3.0, IEC 103 or Modbus can run on the RS485 serial port.
Path:
Setpoints > Device > Communications > IEC60870-5-103
IEC103 Common ASDU Addrs
IEC103 Sync Timeout
IEC103 Common ASDU Addrs
Range: 0 to 254 in steps of 1
Default: 0
DEVICE
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