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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 February 1997 Original production
2 August 1997 Removed “-HZ” model suffix throughout the manual.
Page 76: “CMND” corrected to “SEND” in the diagram for the “PC to computer”
message service in the table.
Page 88: “C” bit added to the program example.
Page 145: Second sentence removed and the equations corrected for 8-3-2
Data Processing Time.
3 February 1999 CS1W-CLK11 and CS1W-CLK21 Controller Link Units for CS/CJ-series PCs
added.
“Common memory” corrected to “shared memory” throughout the manual.
Addition of new 3G8F5-CLK11-E optical model and optical system information
throughout the manual.
4 September 1999 CQM1H-CLK21 Controller Link Units for CQM1H-series PCs added.
5 May 2001 CJ1W-CLK21 Controller Link Units for CJ-series PCs added (including chang-
ing “CS1” to “CS” or CS/CJ” according to context).
An appendix was added on the Relay Terminal Block.
Information on optical systems removed.
Page xiii: “Connector” changed to “any terminal block.”
Page xiv: “Connector” removed, “communications connector” changed to “Bus
Connection Unit,” and “backup power supply cable” removed.
Page xv: “CS1W-CLK11” removed.
Page 3: Graphic altered.
Page 5: Information added on personal computer boards.
Page 6: Information on H-PCF and GI cables added.
Pages 6 and 17: Note changed/added.
Pages 10 and 16: Information added/changed in table.
Pages 11 and 12: Information added on wiring.
Page 15: Note and information following it removed and other changes.
Page 17: Note added in graphic.
Page 19: Parenthetic information changed in procedure.
Page 30: Unit number callout corrected.
Page 45: Recommended wire added.
Page 54: Corrected “bottom switch” to “front switch.”
Page 76: Notes changed.
Page 146: Corrected version information.
Page 159: Restriction added on number of read words.
Page 250: First paragraph in 9-3 Error Log corrected.
Cat. No. W309-E1-09
Revision code