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ADAM-4000 Series User Manual
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7.2.3.5
$AA0L(data)
Name
Set Minimum Input Signal Width at Low Level command
Description
Set the minimum input signal width at low level for a
specified counter/frequency module to filter noise.
Syntax
$AA0L(data)(cr)
$
is a delimiter character.
AA
(range 00-FF) represents the 2-character hexadecimal
address that you will access to.
0L
is the Set Minimum Input Signal Width at Low Level command.
(data)
is the minimum width at low level. The unit is in
μsec (microseconds) and its resolution is 1 μsec. The
format is a five digit integer that can range from 2 μsec to
65535 μsec. Out of range values will cause errors.
(cr)
is the terminating character, carriage return (0Dh).
Response !AA(cr)
if the command is valid. The addressed module
stores the value and will identify the input signal “low”
only if the input signal continues to be “low” longer than
the specified time.
?AA(cr)
if an invalid operation was entered.
There is no response if the module detects a syntax or
communication error, or even if the specified address does not exist.
!
is a delimiter character which indicates a valid command.
?
is a delimiter character which indicates an invalid command.
AA
(range 00-FF) represents the 2-character hexadecimal
address of the module.
(cr)
is the terminating character, carriage return (0Dh).
Example
command: $050L00084(cr)
response: !05(cr)
The command requests the counter/frequency module at
address 05 to set the minimum input width at low level to
84
?
sec. The module stores the value and will identify an
input signal to be "low” only if the signal continues to be
“low” longer than 84 μsec. This function can be used as digital filter.
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...