Communications - GE L90 Instruction Manual

5.2 PRODUCT SETUP
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 L90 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

CLEAR RELAY RECORDS
CLEAR DEMAND:
2. Set the properties for user-programmable pushbutton 1 by making the following changes in the

SETUP USER-PROGRAMMABLE PUSHBUTTONS
5
PUSHBUTTON 1 FUNCTION:
PUSHBTN 1 DROP-OUT TIME:
a) MAIN MENU

PATH: SETTINGS PRODUCT SETUP
 COMMUNICATIONS

5-20
CLEAR DEMAND:
MESSAGE
Off
CLEAR CHNL STATUS:
MESSAGE
Off
CLEAR ENERGY:
MESSAGE
Off
RESET UNAUTH ACCESS:
MESSAGE
Off
menu:
" "
PUSHBUTTON 1 ON
"Self-reset"
"0.20 s"


COMMUNICATIONS

 SERIAL PORTS

 NETWORK
MESSAGE

 MODBUS PROTOCOL
MESSAGE

 DNP PROTOCOL
MESSAGE

 DNP / IEC104
MESSAGE
 POINT LISTS
 IEC 61850 PROTOCOL
MESSAGE

 WEB SERVER
MESSAGE
 HTTP PROTOCOL
 TFTP PROTOCOL
MESSAGE

 IEC 60870-5-104
MESSAGE
 PROTOCOL
L90 Line Current Differential System
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
 menu:
USER PUSHBUTTON 1
See below.
See page 5–23.
See page 5–24.
See page 5–25.
See page 5–28.
See page 5–29.
See page 5–42.
See page 5–42.
See page 5–43.
5 SETTINGS

SETTINGS PRODUCT SETUP

SETTINGS PRODUCT
5.2.5 COMMUNICATIONS
GE Multilin