CHAPTER 5: SETTINGS
PRODUCT SETUP
N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUAL
5-101
5
IEC 60870-5-104 is a transmission protocol for network access, specifically for communication between a control station
and substation over a TCP/IP network.
The N60 supports the IEC 60870-5-104 protocol. This protocol is enabled when the
SETTINGS
PRODUCT SETUP
COMMUNICATIONS
PROTOCOL
setting is set to IEC 60870-5-104. The N60 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 N60 maintains two
sets of IEC 60870-5-104 data change buffers, ideally no more than two masters actively communicate with the N60 at one
time.
The
IEC ------- DEFAULT THRESHOLD
settings are used to determine when to trigger spontaneous responses containing
M_ME_NC_1 analog data. These settings group the N60 analog data into types: current, voltage, power, energy, and other.
Each setting represents the default threshold value for all M_ME_NC_1 analog points of that type. For example, to trigger
spontaneous responses from the N60 when any current values change by 15 A, the
IEC CURRENT DEFAULT THRESHOLD
setting is set to 15. Note that these settings are the default values of the deadbands. P_ME_NC_1 (parameter of measured
value, short floating point value) points can be used to change threshold values, from the default, for each individual
M_ME_NC_1 analog point. Whenever power is removed and re-applied to the N60, the default thresholds are in effect.
The
IEC REDUNDANCY
setting decides whether multiple client connections are accepted or not. If redundancy is set to Yes,
two simultaneous connections can be active at any given time.
IEC TCP PORT NUMBER
— To close the port, set the port number to 0. Any change takes effect when the N60 is restarted.
IEC COMMON ADDRESS OF ASDU
— The change takes effect when the N60 is restarted.
IEC CYCLIC DATA PERIOD
— The change takes effect when the N60 is restarted.
SETTINGS
PRODUCT SETUP
COMMUNICATIONS
IEC 60870-5-104 PROTOCOL
IEC NETWORK CLIENT
ADDRESSES
IEC COMMON ADDRESS
OF ASDU: 0
Range: 0 to 65535 in steps of 1
IEC CYCLIC DATA
PERIOD: 60 s
Range: 1 to 65535 s in steps of 1
IEC CURRENT DEFAULT
THRESHOLD: 30000
Range: 0 to 65535 in steps of 1
IEC VOLTAGE DEFAULT
THRESHOLD: 30000
Range: 0 to 65535 in steps of 1
IEC POWER DEFAULT
THRESHOLD: 30000
Range: 0 to 65535 in steps of 1
IEC ENERGY DEFAULT
THRESHOLD: 30000
Range: 0 to 65535 in steps of 1
IEC PF DEFAULT
THRESHOLD: 1.00
Range: 0.00 to 1.00
IEC OTHER DEFAULT
THRESHOLD: 30000
Range: 0 to 65535 in steps of 1
IEC REDUNDANCY
ENABLED: No
Range: No, Yes
Do not set more than one protocol to the same TCP/UDP port number, as this results in unreliable operation of
those protocols.
IEC NETWORK
CLIENT ADDRESSES
CLIENT ADDRESS 1:
0.0.0.0
Range: standard IPV4 address format
CLIENT ADDRESS 5:
0.0.0.0
Range: standard IPV4 address format