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Rockwell Automation 1756-OF8H ControlLogix HART Analog I/O Modules User Manual

Page 196

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196

Rockwell Automation Publication 1756-UM533C-EN-P - February 2011

Appendix C Additional HART Protocol Information

If no error was detected in the outgoing communication, the second byte
contains status information pertaining to the operational state of the field or slave
device.

0

8

Update Failed - Update In Progress - Set to Nearest Possible Value

0

9

Applied Process Too High - Lower Range Value Too High - Not In Fixed Current Mode

0

10

Applied Process Too Low - Lower Range Value Too Low - MultiDrop Not Supported

0

11

In MultiDrop Mode - Invalid Transmitter Variable Code - Upper Range Value Too High

0

12

Invalid Unit Code - Upper Range Value Too Low

0

13

Both Range Values Out of Limits

0

14

Pushed Upper Range Value Over Limit - Span Too Small

0

16

Access restricted

0

32

Device busy

0

64

Command not implemented

Table 73 - Response Codes and Field Device Status (Continued)

Response Code

Description

If Bit 7 is And Bits

6…0 are

Table 74 - Field Device Status Bit Mask Definitions

Bit

Bit Mask

Definition

7

16#80

Device malfunction - The device detected a serious error or failure that compromises device operation

6

16#40

Configuration changed - An operation was performed that changed the device’s configuration

5

16#20

Cold start - A power failure or device reset occurred

4

16#10

More status available - More status information is available via command 48, Read Additional Status Information

3

16#08

Loop current fixed - The loop current is being held at a fixed value and is not responding to process variations

2

16#04

Loop current saturated - The loop current has reached its upper or lower endpoint limit and cannot increase or decrease any further

1

16#02

Non-primary variable out of limits - A device variable not mapped to the PV is beyond its operating limits

0

16#01

Primary variable out of limits - The PV is beyond its operating limit

IMPORTANT

The 16# means this number is Hex display style.