Bit

Description

0

1

Comment

0

Odd Parity

-

-

This is not a data quality information. It is used for checking validation of DQV.

1

Lock flag

Unlocked

Locked

This bit checks K1:GRD-LSC_LOCK_STATE_N (When GRD channel shows 31415, Arm cavity is locked).

2

SDF flag

Not nominal

Nominal

This bit checks the setting of the IFO control is nominal or not
(It may not work during IMC ER because someone will work on downstream of IMC).

3

Science mode

Not Science mode

Science mode

TY suppose Science mode flag is turned ON by manually after human check
(It is automatically turned off when the lock is lost).

4

not used

Overflow

No overflow

(This bit will check OMC PD overflow for O3.)

5

MCE overflow

Overflow

No overflow

This bit checks MCE coil out overflow. (It will check ETMX for O3.)

6

not used

Overflow

No overflow

(This bit will check ETMY coil out overflow.)

7

NO Stoch injection

Injection

No injection

This bit checks the injection port of the k1calcs, k1calex, (and k1caley).

8

NO CBC injection

Injection

No injection

This bit checks the injection port of the k1calcs, k1calex, (and k1caley).

9

NO Burst injection

Injection

No injection

This bit checks the injection port of the k1calcs, k1calex, (and k1caley).

10

NO DET injection

Injection

No injection

This bit checks the injection port of the k1calcs, k1calex, (and k1caley).

11

NO CW injection

Injection

No injection

This bit checks the injection port of the k1calcs, k1calex, (and k1caley).

12

not assigned yet

13

not assigned yet

14

not assigned yet

15

not assigned yet