Varec 4000 ATT Status Conditions, ATT Configuration Error Checking, Status Condition Description

4000 Maintenance and Troubleshooting

4.4ATT Status Conditions

The ATT provides the following general status condition.

Status Condition	Description
FIELD CONFIG MODIFIED	Set when the configuration is modified from the Model
	1200. This status condition will only be available to the
	host computer and will not appear on the Model 1200.

4.5ATT Configuration Error Checking

The ATT performs extensive integrity checking on the configuration data before it uses it for calculations. If a configuration error is detected, the ATT will generate a CONFIG ERROR status. The status is displayed on the local display, available to the Model 1200 via the Diagnostic/Status Menu, and available to the host computer. To help isolate the type configuration error, the operator can look at CFG ERROR TYPE item under the Diagnostic/Status Menu.

The following are the type of configuration errors and what causes them. The word 'Invalid' implies that the ATT was expecting one of a certain set of values to be assigned to a particular configuration option. This may have been caused by a sudden power outage, a failure in the EEPROM memory, or an invalid configuration received from a host computer.

Error Message	Description
SCALING VAL	Check the level and temperature scaling values under
	the Host Comm Menu. The ATT insures that the
	minimum value is smaller than the maximum value.
ALM SP	Check the four level and four temperature alarm
	setpoints under the Config Menu. The ATT insures that
	the critical high setpoint is higher than the advisory
	high, the advisory high is higher than the advisory low,
	and the advisory low is higher than the critical low.
ALM DBAND	Check the level and temperature deadbands under the
	Config Menu. The ATT insures that they are a positive
	value.
SENS CFG	Check the Level Type and Temperature Type under the
	Config Menu. The ATT insures that they have valid
	values.

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