Emerson Process Management 2051 manual Lcd Transducer Block, Rosemount, Reference Manual

Reference Manual

00809-0200-4101, Rev AA July 2008

Rosemount 2051

ANALOG INPUT (AI) FUNCTION BLOCK

Table 5-8. AI BLOCK_ERR Conditions.

This section describes error conditions that are supported by the AI Block. Read Table 5-9 to determine the appropriate corrective action.

Condition
Number	Condition Name and Description

0Other

1Block Configuration Error: the selected channel carries a measurement that is incompatible with the engineering units selected in XD_SCALE, the L_TYPE parameter is not configured, or CHANNEL = zero.

3Simulate Active: Simulation is enabled and the block is using a simulated value in its execution.

7Input Failure/Process Variable has Bad Status: The hardware is bad, or a bad status is being simulated.

14Power Up

15Out of Service: The actual mode is out of service.

Table 5-9. Troubleshooting the

AI block

Symptom	Possible Causes	Recommended Actions
	BLOCK_ERR reads OUT OF	1.	AI Block target mode target mode set to OOS.
	SERVICE (OOS)	2. Resource Block OUT OF SERVICE.
	BLOCK_ERR reads	1. Check CHANEL parameter (see “CHANNEL” on page 3-9)
	CONFIGURATION ERROR	2. Check L_TYPE parameter (see “L_TYPE” on page 3-9)
		3. Check XD_SCALE engineering units. (see “XD_SCALE and
		OUT_SCALE” on page 3-10
Bad or no pressure readings	BLOCK_ERR reads POWERUP	Download Schedule into block. Refer to host for downloading
(Read the AI “BLOCK_ERR”		procedure.
parameter)	BLOCK_ERR reads BAD INPUT	1. Sensor Transducer Block Out Of Service (OOS)
		2.	Resource Block Out of Service (OOS)
	No BLOCK_ERR but readings are	1.	Check XD_SCALE parameter.
	not correct. If using Indirect mode,	2.	Check OUT_SCALE parameter.
	scaling could be wrong.	(see “XD_SCALE and OUT_SCALE” on page 3-10)
	No BLOCK_ERR. Sensor needs to	See Section 3: Operation and Maintenance to determine the
	be calibrated or Zero trimmed.	appropriate trimming or calibration procedure.
OUT parameter status reads	Out_ScaleEU_0 and EU_100	See “XD_SCALE and OUT_SCALE” on page 3-10.
UNCERTAIN and substatus reads	settings are incorrect.
EngUnitRangViolation.

LCD TRANSDUCER BLOCK

This section describes error conditions found in the LCD Transducer Block. Read Table 5-10 and to determine the appropriate corrective action.

Self Test Procedure for the LCD

The SELF_TEST parameter in the Resource block will test LCD segments. When running, the segments of the display should light up for about five seconds.

If your host system supports methods refer to your host documentation on how to run the "Self Test" method. If your host system does not support methods than you can run this test manually be following the steps below.

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