Allen-Bradley 1794-IE8H, User Manual, Page: 74 / 146

Publication 1794-UM063A-EN-P - March 2006
5-6 Calibrate Your Module
Table 5.5 1794-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 1794-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.