GE T35 Instruction Manual page 303

CHAPTER 5: SETTINGS
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 T35 supports the IEC 60870-5-104 protocol. This protocol is enabled when the
COMMUNICATIONS  PROTOCOL
connected to a maximum of two masters (usually either an RTU or a SCADA master station). Since the T35 maintains two
sets of IEC 60870-5-104 data change buffers, ideally no more than two masters actively communicate with the T35 at one
time.
The
IEC ------- DEFAULT THRESHOLD
M_ME_NC_1 analog data. These settings group the T35 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 T35 when any current values change by 15 A, the
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 T35, the default thresholds are in effect.
The setting decides whether multiple client connections are accepted or not. If redundancy is set to Yes,
IEC REDUNDANCY
two simultaneous connections can be active at any given time.
— To close the port, set the port number to 0. Any change takes effect when the T35 is restarted.
IEC TCP PORT NUMBER
IEC COMMON ADDRESS OF ASDU
— The change takes effect when the T35 is restarted.
IEC CYCLIC DATA PERIOD
The T35 relay does not support energy metering. As such, the
applicable.
Do not set more than one protocol to the same TCP/UDP port number, as this results in unreliable operation of
those protocols.
T35 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
IEC COMMON ADDRESS

OF ASDU: 0
IEC CYCLIC DATA

PERIOD: 60 s
IEC CURRENT DEFAULT

THRESHOLD: 30000
IEC VOLTAGE DEFAULT

THRESHOLD: 30000
IEC POWER DEFAULT

THRESHOLD: 30000
IEC ENERGY DEFAULT

THRESHOLD: 30000
IEC PF DEFAULT

THRESHOLD: 1.00
IEC OTHER DEFAULT

THRESHOLD: 30000
IEC REDUNDANCY

ENABLED: No
setting is set to IEC 60870-5-104. The T35 can be used as an IEC 60870-5-104 slave device
settings are used to determine when to trigger spontaneous responses containing
— The change takes effect when the T35 is restarted.
Range: 0 to 65535 in steps of 1
Range: 1 to 65535 s in steps of 1
Range: 0 to 65535 in steps of 1
Range: 0 to 65535 in steps of 1
Range: 0 to 65535 in steps of 1
Range: 0 to 65535 in steps of 1
Range: 0.00 to 1.00
Range: 0 to 65535 in steps of 1
Range: No, Yes
SETTINGS  PRODUCT SETUP 
IEC CURRENT DEFAULT THRESHOLD
IEC ENERGY DEFAULT THRESHOLD
PRODUCT SETUP
5
setting is not
5-101