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Rockwell Automation 1797-OE8H FLEX Ex HART Analog Modules User Manual User Manual

Page 83

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Publication 1797-6.5.3 - March 2006

Calibrate Your Module 5-7

Table 5.5 1797-IE8H Interpretation of Calibration Data Structure Content During Read Access (Idle Status)

Command Byte

Item Byte

Data1 Byte

Data2 Byte

Status (Binary)

Command Bits 0…5 (Decimal)

00

Idle

0

Nothing is done. The state after power on.

0

0

0

1

Calibration of offset at 25 °C is done according to
channel-mask

Channel-Mask

2

Calibration of gain at 25 °C is done according to
channel-mask

8

All calibration values are set to default

0

9

The specified calibration value is set to default

Value-identifier

10

Reserved

(1)

Reserved

(1)

Reserved

(1)

Reserved

(1)

11

Reserved

(1)

12

Reserved

(1)

13

Reserved

(1)

14

The calibration content is saved to EEPROM.

0

0

0

(1)

Reserved. Used during manufacture of the product.

Table 5.6 1797-IE8H Interpretation of Calibration Data Structure Content During Read Access (Error Status)

Command Byte

Item Byte

Data1 Byte

Data2 Byte

Status (Binary)

Command Bits 0…5 (Decimal)

01

Error

1

Calibration of offset at 25 °C according to
channel-mask has failed

Channel-mask

0

0

2

Calibration of gain at 25 °C according to
channel-mask has failed

3…7

Unknown command is mirrored back

0

8

The calibration values are not set to default

0

9

The specified calibration value is not set to default Value-identifier

10

Reserved

(1)

Reserved

(1)

Reserved

(1)

Reserved

(1)

11

Reserved

(1)

12

Reserved

(1)

13

Reserved

(1)

14

The calibration content could not be saved to
EEPROM

0

0

0

15…61 Unknown command is mirrored back

62

Reserved

Reserved

Reserved

Reserved

63

Reserved

(1)

Reserved. Used during manufacture of the product. Do not use.

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