INSULATION_STATUS:

0 – NO_DATA (there is no data about the insulation resistance);

1 – OK (the insulation resistance has normal values);

2 – WARNING (low insulation resistance warning; insulation resistance is less than the WARNING_RESISTANCE level, but greater than the ALARM_RESISTANCE level);

3 – ALARM (message about emergency low insulation resistance; insulation resistance is less than ALARM_RESISTANCE level).

Note – When WORK_PERMISSION is reset and before the first measurement, the status is set to NO_DATA.

INTERNAL_ERROR (bitfield):

bit 0 – LOW_BUS_VOLTAGE_ERROR;

bit 1 – TIMEOUT_ERROR (transient measurement timeout);

bit 2 – ANOMALY_ERROR (an abnormal condition between the positive and negative bus bars of the battery and the chassis, may indicate intermittent contact of the battery bus bars with the chassis);

bit 3 – SELF_TEST_ERROR;

bits 4-7 – reserved.

STATE:

0 – IDLE (device is not working);

1 – WORK (device is working);

2 – CRITICAL_FAULT.

RESISTANCE_CALCULATED:

0 – insulation resistance values are not calculated;

1 – insulation resistance values are calculated.

RESISTANCE_PLUS – insulation resistance between the positive power bus and the chassis:

0 – minimum resistance

10000 – maximum resistance

RESISTANCE_MINUS – insulation resistance between the negative power bus and the chassis:

0 – minimum resistance

10000 – maximum resistance

BUS_VOLATGE_CALCULATED:

0 – voltage value is not calculated;

1 – voltage value is calculated.

ALLOW_WORK:

0 – work is not allowed;

1 – work is allowed.

FORCE_SELFTEST – command to force device self-diagnosis:

0 – using an internal algorithm for self-diagnosis;

1 – forced start of self-diagnosis (if active, only self-diagnosis is performed).