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ADAM-4000 Series User Manual
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5.1.15
$AA9SNNNN
Name
CJC Offset Calibration command
Description Calibrates an analog input module to adjust for offset errors
of its CJC (Cold Junction Compensation) sensors.
Syntax
$AA9SNNNN
(number of counts)(cr)
$
is a delimiter character.
AA
(range 00-FF) represents the 2-character hexadecimal
address of the analog input module which contains the CJC
status you wish to retrieve.
9
is the CJC Status command.
S sign, + or -, indicates whether to increase or decrease the
CJC offset value.
NNNN
(number of counts) is a four character hexadecimal
“count” value. Each count equals approximately 0.009
?
.
The value can range from 0000 to FFFF.
(cr)
is the terminating character, carriage return (0Dh).
Response
!AA(cr)
if the command is valid.
?AA(cr)
if an invalid command was issued.
There is no response if the module detects a syntax error or
communication error or if the specified address does not exist.
!
delimiter character indicates a valid command was received.
?
delimiter character indicates the command was invalid.
AA
(range 00-FF) represents the 2-character hexadecimal
address of an analog input module.
(cr)
is the terminating character, carriage return (0Dh).
Example
command: $079+0042(cr)
response: !07(cr)
The command increases the CJC offset value of the analog
input module at address 07h with 66 counts (42 hex) which
equals about 0.6 °C.
Caution!
An analog input module requires a maximum of 2 seconds to perform
auto calibration and ranging after it received a CJC Calibration com
-
mand. During this interval, the module can not be addressed to perform
any other actions.
Summary of Contents for Adam - 4021
Page 1: ...User Manual ADAM 4000 Series Data Acquisition Modules...
Page 4: ...ADAM 4000 Series User Manual iv...
Page 12: ...ADAM 4000 Series User Manual xii...
Page 13: ...Chapter 1 1 Introduction...
Page 16: ...ADAM 4000 Series User Manual 4...
Page 17: ...Chapter 2 2 Installation Guideline...
Page 33: ...Chapter 3 3 I O Modules...
Page 78: ...ADAM 4000 Series User Manual 66...
Page 79: ...Chapter 4 4 Command Set...
Page 99: ...87 ADAM 4000 Series User Manual Chapter 4 Command Set...
Page 100: ...ADAM 4000 Series User Manual 88...
Page 101: ...Chapter 5 5 Analog Input Module Commands...
Page 127: ...Chapter 6 6 Analog Output Module Commands...
Page 144: ...ADAM 4000 Series User Manual 132...
Page 145: ...Chapter 7 7 I O Relay Counter Frequency...
Page 201: ...Chapter 8 8 Calibration...
Page 206: ...ADAM 4000 Series User Manual 194...
Page 207: ...Appendix A A Technical Specifications...
Page 216: ...ADAM 4000 Series User Manual 204 Figure A 5 ADAM 4024 Function Diagram...
Page 232: ...ADAM 4000 Series User Manual 220 Figure A 14 ADAM 4080 Function Diagram...
Page 233: ...Appendix B B Data Formats and I O Ranges...
Page 244: ...ADAM 4000 Series User Manual 232...
Page 245: ...Appendix C C Technical Diagrams...
Page 246: ...ADAM 4000 Series User Manual 234 C 1 ADAM Dimensions Figure C 1 ADAM Modules Dimensions...
Page 248: ...ADAM 4000 Series User Manual 236 Figure C 3 DIN Rail Mounting...
Page 250: ...ADAM 4000 Series User Manual 238 C 2 3 Piggyback Stack Figure C 6 Piggyback Stack...
Page 251: ...Appendix D D Utility Software...
Page 258: ...ADAM 4000 Series User Manual 246...
Page 259: ...Appendix E E RS 485 Network...
Page 264: ...ADAM 4000 Series User Manual 252...
Page 265: ...Appendix F F Using the Checksum Feature...
Page 268: ...ADAM 4000 Series User Manual 256...
Page 269: ...Appendix G G I O Modbus Mapping Table...
Page 283: ...Appendix H H Changing to Modbus Protocol...
Page 285: ...273 ADAM 4000 Series User Manual Appendix H Changing to Modbus Protocol...