
ADAM-4000 Series User Manual
224
B.1.3
Twos complement hexadecimal
Twos Complement Hexadecimal format presents the data in ASCII hexadecimal form
providing a rapid communication, high resolution and easy conversion to computer-
compatible integer format.
In order to indicate twos complement hexadecimal, bits 0 and 1 of the data format/
checksum/integration time parameter must be set to 10. This format displays data in
the form of a 4-character hexadecimal string.
This string represents a 16-bit twos complement binary value. Positive full scale is
denoted as 7FFF (+32,767) while negative full scale is represented by the value 8000
(-32,768). The resolution is digit one at the least significant bit (LSB) of 16 bits.
Example
The input value is -1.234 V. An analog input module is configured for a ±5 V range.
The value returned is: E069 (cr)
This value is equivalent to the signed integer -8087.
Input ranges with voltage and milliamp values are used with the full calibrated voltage
range from 8000 to 7FFF. For instance, an ADAM-4011 module is given a ±5 V input
range. In this case, -5 V is represented as 8000h and +5 V is denoted as 7FFFh.
When thermocouple input ranges are used, an input range which is bipolar and sym
-
metric at zero is assumed. The following table provides several examples.
The given span of the specified range is used to determine the RTD input ranges for
twos complement hexadecimal values. For an example, if the nickel RTD is specified
for the range -80°C to +100°C, the corresponding values in hexadecimal notation
would be 8000h to 7FFFh.
Thermocouple Type
Temperature Range (Degrees)
Temperature Range (Hex)
J
0° C to 760° C
0000h - 7FFFh
T
-100° C to 400° C
E000h - 7FFFh
R
500° C to 1750° C
2492h - 7FFFh
Содержание Adam - 4021
Страница 1: ...User Manual ADAM 4000 Series Data Acquisition Modules...
Страница 4: ...ADAM 4000 Series User Manual iv...
Страница 12: ...ADAM 4000 Series User Manual xii...
Страница 13: ...Chapter 1 1 Introduction...
Страница 16: ...ADAM 4000 Series User Manual 4...
Страница 17: ...Chapter 2 2 Installation Guideline...
Страница 33: ...Chapter 3 3 I O Modules...
Страница 36: ...ADAM 4000 Series User Manual 24 3 2 1 Application Wiring Figure 3 2 ADAM 4015 RTD Input Module Wiring Diagram...
Страница 78: ...ADAM 4000 Series User Manual 66...
Страница 79: ...Chapter 4 4 Command Set...
Страница 99: ...87 ADAM 4000 Series User Manual Chapter 4 Command Set...
Страница 100: ...ADAM 4000 Series User Manual 88...
Страница 101: ...Chapter 5 5 Analog Input Module Commands...
Страница 127: ...Chapter 6 6 Analog Output Module Commands...
Страница 144: ...ADAM 4000 Series User Manual 132...
Страница 145: ...Chapter 7 7 I O Relay Counter Frequency...
Страница 201: ...Chapter 8 8 Calibration...
Страница 206: ...ADAM 4000 Series User Manual 194...
Страница 207: ...Appendix A A Technical Specifications...
Страница 211: ...199 ADAM 4000 Series User Manual Appendix A Technical Specifications Figure A 2 ADAM 4018 Function Diagram...
Страница 213: ...201 ADAM 4000 Series User Manual Appendix A Technical Specifications Figure A 3 ADAM 4019 Function Diagram...
Страница 215: ...203 ADAM 4000 Series User Manual Appendix A Technical Specifications Figure A 4 ADAM 4021 Function Diagram...
Страница 216: ...ADAM 4000 Series User Manual 204 Figure A 5 ADAM 4024 Function Diagram...
Страница 219: ...207 ADAM 4000 Series User Manual Appendix A Technical Specifications Figure A 7 ADAM 4051 4052 Function Diagram...
Страница 221: ...209 ADAM 4000 Series User Manual Appendix A Technical Specifications Figure A 8 ADAM 4053 Function Diagram...
Страница 223: ...211 ADAM 4000 Series User Manual Appendix A Technical Specifications Figure A 9 ADAM 4055 Function Diagram...
Страница 225: ...213 ADAM 4000 Series User Manual Appendix A Technical Specifications Figure A 10 ADAM 4056S Function Diagram...
Страница 227: ...215 ADAM 4000 Series User Manual Appendix A Technical Specifications Figure A 11 ADAM 4056SO Function Diagram...
Страница 229: ...217 ADAM 4000 Series User Manual Appendix A Technical Specifications Figure A 12 ADAM 4060 Function Diagram...
Страница 232: ...ADAM 4000 Series User Manual 220 Figure A 14 ADAM 4080 Function Diagram...
Страница 233: ...Appendix B B Data Formats and I O Ranges...
Страница 244: ...ADAM 4000 Series User Manual 232...
Страница 245: ...Appendix C C Technical Diagrams...
Страница 246: ...ADAM 4000 Series User Manual 234 C 1 ADAM Dimensions Figure C 1 ADAM Modules Dimensions...
Страница 248: ...ADAM 4000 Series User Manual 236 Figure C 3 DIN Rail Mounting...
Страница 250: ...ADAM 4000 Series User Manual 238 C 2 3 Piggyback Stack Figure C 6 Piggyback Stack...
Страница 251: ...Appendix D D Utility Software...
Страница 258: ...ADAM 4000 Series User Manual 246...
Страница 259: ...Appendix E E RS 485 Network...
Страница 264: ...ADAM 4000 Series User Manual 252...
Страница 265: ...Appendix F F Using the Checksum Feature...
Страница 268: ...ADAM 4000 Series User Manual 256...
Страница 269: ...Appendix G G I O Modbus Mapping Table...
Страница 283: ...Appendix H H Changing to Modbus Protocol...
Страница 285: ...273 ADAM 4000 Series User Manual Appendix H Changing to Modbus Protocol...