Allen-Bradley 1794-IE8H Manuel d'utilisateur télécharger pdf (Page 104)

Publication 1794-UM063A-EN-P - March 2006

C-6 Additional HART Protocol Information

Table C.4 HART Field Device Error Codes

Bit Error Code Description

7 Field Device Malfunction An internal hardware error or failure has been

detected by the HART field device.

6 Configuration Changed A write or set command has been executed by

the HART field device.

5 Cold Start Power has been removed and reapplied,

resulting in the reinstallation of the setup

information. The first HART command to

recognize this condition automatically resets

this flag. This flag may also be set following a

master reset or self test.

4 More Status Available More status information is available and can be

read using command #48. Read additional status

information.

3 Primary Variable Analog

Output Fixed

The analog and digital outputs for the primary

variable are held at their requested value. They

will not respond to the applied process.

2 Primary Variable Analog

Output Saturated

The analog and digital outputs for the primary

variables are beyond their limits and no longer

represent the true applied process.

1 Nonprimary Variable Out of

Limits

The process applied to a sensor, other than that

of the primary variable, is beyond the operating

limits of the device. To identify the variable, use

command #48, read additional status

information.

0 Primary Variable Out of

Limits

The process applied to the sensor for the

primary variable is beyond the operating limits

of the device.

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Allen-Bradley 1794-IE8H Manuel d'utilisateur Page 104