Troubleshooting, ATT Error Status Conditions | Varec 4000 specs

Maintenance and Troubleshooting	Tank Gauge Transmitter

4.3Troubleshooting

The ATT has provisions for hardware alarm inputs, software generated setpoint alarms, and other alarm conditions.

Alarm and error status conditions are available to the Model 1200, to the host Computer, and to the optional ATT display. When in the Model 1200 display mode, the Diagnostic Status Menu displays only active alarm and error status conditions. General status conditions such as HW IN 1 are always displayed.

4.3.1 ATT Error Status Conditions

Error Message	Description
BAD COMM BOARD	The communication board did not pass the loopback test. See
	the description of the host communication loop-back tests.

BAD CPU BOARD	RAM, EPROM, or EEPROM has failed.

BAD EEPROM CHECKSUM	The EEPROM configuration data did not match the EEPROM
	stored checksum. Examine all configuration parameters, make
	any changes, and then use the "EXIT AND SAVE" option under
	the Main Menu.

BAD EEPROM	The value written to EEPROM memory did not match the value
	read back from EEPROM memory. This is a critical alarm.
	Contact the factory.

BAD EPROM	The program EPROMs have failed the EPROM test. This is a
	critical alarm. Contact the factory.

BAD LEVEL	The level input is invalid.

BAD RAM	The RAM has failed the RAM test. This is a critical alarm.
	Contact the factory.

BAD RTD RESISTANCE	The ATT detected an invalid RTD resistance. Usually due to an
	open or shorted RTD input.

BAD TEMP	The ATT detected an invalid temperature. Usually due to an
	RTD failure.

CALC ERROR	Calculation overflow or divide by zero error.

CONFIG ERROR	See the ATT configuration error checking in this section.

LOW BATTERY	The battery used to maintain the encoder circuitry has a low
	voltage.

NO CALC ERROR	The ATT can no longer perform calculation. See information
	under the Stop Calculations Conditions section.

OFFLINE MODE	A Model 1200 is connected to the ATT at tank side. No ATTI
	Bus sensor communication is active.

RTD UNCOVERED	The Resistive Temperature Device (RTD) sensor is uncovered.

28	Installation and Operations Manual

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Varec 4000 manual Troubleshooting, ATT Error Status Conditions, Error Message Description

Contents

Installation Operations Manual Page Copyright Disclaimer of Warranties Safety Precaution Definitions Safety Precautions Tank Gauge Transmitter Introduction Tank Gauge Transmitter Glossary Tank Gauge Transmitter Viii Using This Manual Introduction Construction ConfigurationOperation Installation Mounting the Equipment Part Number Gauge Adapter Kit Wiring Preparation WiringATT Wiring Connecting Input Power Connecting Host Communication Terminal Block One TB1 Terminal Block Two TB2 ATT EIA485 Wiring Typical EIA485 Wiring Typical EIA485 System Wiring ATT Mark/Space Wiring Typical Mark/Space Field Wiring Wiring Completion Connecting the RTDConnecting the Handheld Terminal Installation Checkout 1200 Hand Held Terminal ConfigurationConfiguration Parameters Function Key Description Terminal Mode Configuration Terminal Mode Operation 1200 Hand Held Terminal Menu Operation Main Menu Main Menu Description Summary Menu Summary Menu Description Configuration Menu Configuration Menu Description Host Menu Host Menu Description Quick Setup Host Configuration Imperial Fractional 1900 Quick Setup DefaultsGeneral Configuration Imperial Decimal 1900 Quick Setup Defaults 3 0-20 Meter 1900 Quick Setup Defaults 4 0-30 Meter 1900 Quick Setup Defaults 7 0-20 Meters 1800 Series Transmitter Quick Setup Imperial Fractional 1800 Series Transmitter Quick SetupImperial Decimal 1800 Series Transmitter Quick Setup 8 0-30 Meters 1800 Series Transmitter Quick Setup Imperial Modbus Quick Setup Defaults Metric Modbus Quick Setup Defaults Battery Replacement Maintenance and TroubleshootingMaintenance Error Message Description TroubleshootingATT Error Status Conditions Status Condition Description ATT Configuration Error CheckingATT Status Conditions Model 1200 Error Messages Host Communication Loopback Tests Input Power SpecificationsSpecifications and Physical Characteristics Environmental Level Measurement Explosion Proof Safety Agency ApprovalsIntrinsic Safety Agency Acronym Requirement Assembly/Component Part Number Major System Assemblies and Components Order Codes Communications Order Codes Theory of Operation CPU Board Atti Communications Port Back-up BatteryStatus Inputs and Outputs Host Communications Interfaces Host Communication Encoder Battery BackupTemperature Measurement Number Exception Mark/Space Host InterfaceFunction Number Modbus Support over Mark/Space Host Interface Compatibility with Varec Tank Polling Unit Theory of Operation ATT Family of Products Model 4040 Display Unit Digital Outputs Relay SpecificationsModel 4050 Digital Input/Output Unit Digital Inputs Implementation Modbus ImplementationIntroduction Modbus Implementation Term Definition Functions and Data FormatsInteger Registers ATT Response Integer DataHost Request Character Data Coded Data Packed Bit Data Two 16-bit Registers Format Floating-Point RegistersFloating-Point Data Floating Point Data One 32-bit Register Format Exception Responses Status BitsStatus Bit Data Exception Response Reason Hardware Implementation Data Out of RangeLoopback Test Integer Register Map Register Number Type Description Register Number Sw Ver0-1 Noise Reject Type Floating Point Register Map Status Bit Register Map Modbus Implementation 10.2 4000GEFMO Optional Interfaces10.1 4000TIFMO 10.3 4000LJFMO 10.5 4000WBFMO 10.6 4000GMFMO Glossary Adv Hi Level Dband TSU Tank Gauge Transmitter 4000 Your official representative Your offical representative