Emerson Process Management 2051 manual Rosemount, Reference Manual, 00809-0200-4101,Rev AA July

Reference Manual

00809-0200-4101, Rev AA July 2008

Rosemount 2051

Diagnostics

In addition to the BLOCK_ERR and XD_ERROR parameters, more detailed information on the measurement status can be obtained via TB_DETAILED_STATUS. The table below lists the potential errors and the possible corrective actions for the given values. The corrective actions are in order of increasing system level compromises. The first step should always be to reset the transmitter and then if the error persists, try the steps in the table below. Start with the first corrective action and then try the second.

ValueDescription

0x00000001 Sensor hardware incompatible with software

0x00000002 Sensor board EEPROM burn failure

0x00000004 Sensor board EEPROM not initialized with factory data

0x00000008 Temperature sensor not updating

0x00000010 Pressure sensor not updating

0x00000080 Sensor EEPROM Checksum failure

0x00000100 Pressure sensor HI limit exceeded

0x00000200 Pressure sensor LO limit exceeded

0x00001000 Temperature sensor HI limit exceeded

0x00004000 Temperature SECONDARY_VALUE range exceeded

Corrective Actions

1.Restart Processor

2.Send to Service Center

1.Restart the Processor

1.Restart Processor

2.Send to Service Center

1.Restart Processor

2.Reconnect sensor ribbon cable

3.Send to Service Center

1.Restart Processor

2.Reconnect sensor ribbon cable

3.Send to Service Center

1.Restart Processor

2.Send to Service Center

1.Check Pressure

2.Restart Processor

1.Check Pressure

2.Restart Processor

1.Check Ambient Temp.

2.Restart Processor

1.Check Ambient Temp.

2.Restart Processor

Modes

The transducer block supports two modes of operation as defined by the MODE_BLK Parameter:

Automatic (Auto)—The channel outputs reflect the analog input measurement.

Out of Service (OOS)—Channel outputs status is set to Bad: Out of Service for each channel. The BLOCK_ERR parameter shows Out of Service. In this mode, you can make changes to all configurable parameters. The target mode of a block may be restricted to one or more of the supported modes.

Alarm Detection

Alarms are not generated by the transducer block. By correctly handling the status of the channel values, the down stream block (AI) will generate the necessary alarms for the measurement. The error that generated this alarm can be determined by looking at BLOCK_ERR and XD_ERROR and

TB_DETAILED_STATUS.

Status Handling

Normally, the status of the output channels reflects the status of the measurement value, the operating condition of the measurement electronics, and any active alarm condition.

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