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ProSoft Technology MVI69-HART User Manual

Page 113

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MVI69-HART ♦ CompactLogix Platform

Reference

HART Multi-drop Master Communication Module

User Manual

ProSoft Technology, Inc.

Page 113 of 169

March 29, 2012

5.6.1 Protocol Error Codes

These are error codes that are part of the HART protocol. The standard HART

error codes are shown in the following tables:

Error Code Word

First Byte

Second Byte

7

6

5

4

3

2

1

0

7

6

5

4

3

2

1

0

Bit 7 of First Byte = 1
COMMUNICATION ERROR

First Byte
Bit 6

Parity Error

Bit 5

Overrun Error

Bit 4

Framing Error

Bit 3

Checksum Error

Bit 2

Reserved

Bit 1

Rx Buffer Overflow

Bit 0

Undefined

Second Byte
Bit 0 To Bit 7

All 0

Bit 7 of First Byte = 0
Command Error
First Byte
Bits 6 To 0 (not Bit-mapped):
0

No Error

1

Undefined

2

Invalid Selection

3

Passed Parameter Too Large

4

Passed Parameter Too Small

5

Too Few Data Bytes Received

6

Transmitter-specific Command Error

7

In Write-protect Mode

8 to 15

Command Specific Errors (see Below)

16

Access Restricted

32

Device Is Busy

64

Command Not Implemented

Second Byte
Bit 7

Device Malfunction

Bit 6

Configuration Changed

Bit 5

Cold Start

Bit 4

Unused

Bit 3

Output Current Fixed

Bit 2

Analog Output Saturated

Bit 1

Variable (not Primary) Out Of Limits