GE G30 - Communications

5-26 G30 Generator Protection System GE Multilin
5.2 PRODUCT SETUP 5 SETTINGS
5
Selected records can be cleared from user-programmable conditions with FlexLogic operands. Assigning user-programma-
ble pushbuttons to clear specific records are typical applications for these commands. Since the G30 responds to rising
edges of the configured FlexLogic operands, they must be asserted for at least 50 ms to take effect.
Clearing records with user-programmable operands is not protected by the command password. However, user-program-
mable pushbuttons are protected by the command password. Thus, if they are used to clear records, the user-programma-
ble pushbuttons can provide extra security if required.
For example, to assign user-programmable pushbutton 1 to clear demand records, the following settings should be applied.
1. Assign the clear demand function to pushbutton 1 by making the following change in the SETTINGS  PRODUCT SETUP
 CLEAR RELAY RECORDS menu:
CLEAR DEMAND: “PUSHBUTTON 1 ON”
2. Set the properties for user-programmable pushbutton 1 by making the following changes in the SETTINGS  PRODUCT
SETUP  USER-PROGRAMMABLE PUSHBUTTONS  USER PUSHBUTTON 1 menu:
PUSHBUTTON 1 FUNCTION: “Self-reset”
PUSHBTN 1 DROP-OUT TIME: “0.20 s”
5.2.4 COMMUNICATIONS
a) MAIN MENU
PATH: SETTINGS  PRODUCT SETUP  COMMUNICATIONS
MESSAGE
CLEAR DIR I/O STATS:
Off
Range: FlexLogic operand.
Valid only for units with Direct I/O module.
 COMMUNICATIONS

 SERIAL PORTS

See page 5–27.
MESSAGE
 NETWORK

See page 5–29.
MESSAGE
 ROUTING

See page 5–32.
MESSAGE
 MODBUS PROTOCOL

See page 5–35.
MESSAGE
PROTOCOL:
DNP 3.0
Range: DNP 3.0, IEC 60870-5-104, IEC 60870-5-103
MESSAGE
 DNP PROTOCOL

See page 5–36.
MESSAGE
 DNP / IEC104
 POINT LISTS
See page 5–39.
MESSAGE
 IEC 61850 PROTOCOL

See page 5–41.
MESSAGE
 WEB SERVER
 HTTP PROTOCOL
See page 5–56.
MESSAGE
 TFTP PROTOCOL

See page 5–56.
MESSAGE
 IEC 60870-5-104
 PROTOCOL
See page 5–57.
MESSAGE
 EGD PROTOCOL

See page 5–58.