R.A.77
Date Code 20111215 Reference Manual SEL-421 Relay
Relay Word Bits
Row List
277 * Reserved
277–
279
* Reserved
a
The time-error calculation logic runs once per cycle. Condition the LOADTE equation logic
expression to assert for at least one cycle to ensure recognition. (Do not use a rising edge
operator, R_TRIG, in the LOADTE setting.)
Table A.52 Pushbuttons, Pushbutton LEDs, and Target LEDs for new HMI
(Sheet 1 of 2)
Row Bit Name Description
280 TLED_17 Target LED 17
280 TLED_18 Target LED 18
280 TLED_19 Target LED 19
280 TLED_20 Target LED 20
280 TLED_21 Target LED 21
280 TLED_22 Target LED 22
280 TLED_23 Target LED 23
280 TLED_24 Target LED 24
281 PB9 Pushbutton 9
281 PB10 Pushbutton 10
281 PB11 Pushbutton 11
281 PB12 Pushbutton 12
281 * Reserved
281 * Reserved
281 PB_TRIP Auxiliary TRIP Pushbutton
281 PB_CLSE Auxiliary CLOSE Pushbutton
282 PB9_LED Pushbutton 9 LED
282 PB10LED Pushbutton 10 LED
282 PB11LED Pushbutton 11 LED
282 PB12LED Pushbutton 12 LED
282 * Reserved
282 * Reserved
282 * Reserved
282 * Reserved
283 PB9_PUL Pushbutton 9 pulse (on for one processing interval when
button is pushed)
283 PB10PUL Pushbutton 10 pulse (on for one processing interval when
button is pushed)
283 PB11PUL Pushbutton 11 pulse (on for one processing interval when
button is pushed)
283 PB12PUL Pushbutton 12 pulse (on for one processing interval when
button is pushed)
283 * Reserved
283 * Reserved
Table A.51 Time-Error Calculation (Sheet 2 of 2)
Row Bit Name Description