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Revision History
A manual revision code appears as a suffix to the catalog number on the front cover of the manual.
The following table outlines the changes made to the manual during each revision. Page numbers refer to the
previous version.
Revision code Date Revised content
1 December 1993 Original production
2 June 1994 Parts IV, V, and VI added.
Page xi: Parts IV, V, and VI introductions added.
Page 25: Input and output words were opposite to each other and have been corrected.
Page 45: COM 1 corrected to CQM1 in the bottom diagram.
3 February 1995 Part I B7A Interface Units has been completely changed to reflect the addition of new
models. Part II G730 Interface Units added.
Sections 5, 6, and 7 have been added to Part VII Temperature Control Units.
Pages 22, 25: Switch diagram changed.
Pages 24, 38, 130: Terminal screw size added to the diagram.
Page 28: Note 1 at the bottom of the page rewritten.
Pages 29, 77, 145: Dimensions in the table corrected.
Page 29, 53, 54: Dimensions added to page.
Pages 53, 77: Accuracy specification corrected.
Page 77: Internal current consumption corrected.
Page 128: Third paragraph deleted since the current detection function is not provided.
Page 131: “PID with feed-forward circuitry” corrected to “Advanced PID” in the table.
4 October 1995 Part VII Linear Sensor Interface Unit added.
Pages 6, 7: Note 3 and caution added.
Page 23: Minimum input time and note 4 added to the table.
Page 87: Input circuit added for the Analog Input Unit.
Page 177: A table of available commands and functions added.
Page 189: Wording of description for I/O words corrected.
Page 204: Wording of note corrected.
4A July 1996 Pages 66, 70: Note on EC directives added.
Page 78: CQM1-PA216 added.
Page 116: Reference for polygonal line conversion corrected.
5 June 1997 Page 5, 32, 62, 77, 78, 126, 170: CQM1-CPU4@ model numbers changed to CQM1-
CPU4@-EV.
Page 31: Number of I/O points changed from 192 to 256.
Page 63, 64: C200HX/HG/HE added to the PC column of the table. “(F)” added to
C1000H and C500.
Page 112, 113: Wiring diagrams changed for 3-1-2 Wiring and 3-1-3 Terminal Arrange-
ment.
Page 138, 139, 143: Force measurements changed to SI units.
Page 157: Enclosure rating in the tables corrected.
Page 261: Setting and display accuracy specifications corrected.
6 November 1998 Added Precautions to the beginning of the manual.
Pages 10 to 14, 19, 34 to 36, 40, 41, 234: Added tightening torque value.
Page 108: Added Front View under 2-1 Nomenclature.
Page 186: Changed tightening torque value.
Page 238: Added a note to the wiring diagram.
7 September 1999 Information relating to CQM1H added.
Cat. No. W238-E1-10
Revision code
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