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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.
Cat. No. V001–E1–2
Revision code
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
November 1991
Original production
1A
October 1992
Page 3:
A row defining the C200H has been added to the SYSMAC terminology table.
Manual numbers have been changed in the Reference Manuals table.
Page 4:
The numbers of registered screens have been changed in the Memory Capacity
and Number of Screens table. The model legend for the system ROM has been changed
to incorporate the C200H. A model number for the Host Interface Units has been added to
the table.
Page 5:
C200H Interface has been added to the list of allowable interfaces for commu-
nications in 1-4-2 Operation.
Page 7:
A C200H Interface description has been added.
Page 10: “Transfer Mode” has been changed to “Transmit Mode” for pin 6 of the switch set-
tings table.
Page 11: SW1 has been changed to SW3 in the table.
Page 23: “Transfer Mode” has been changed to “Transmit Mode” within the procedure.
Page 26: The description within 4-1-3 Character Scale has been changed.
Page 32: NT20M-LB121-EV1 Host Interface Unit has been added to the Note at the bottom
of the page.
Page 49: A description for the C200H Host Interface Units (NT20M-LB121-EV1) has been
added.
Page 51: A description for the C200H Host Interface Units (NT20M-RT121-EV1) has been
added.
Page 59: A row for the C200H Host Interface Units has been added to the table.
2
September 1993
Page 2: A general introduction was added, describing the basic functions of PTs.
Pages 2 and 3: Some new features were added.
Page 4: Descriptions of NT20M and NT2000M PTs were added.
Page 5: Information was added about selecting System ROM.
Page 6: Information was added about the Support Tool.
Pages 7 and 8: Changes were made to system configuration illustrations.
Pages 9 to 12: Illustrations were added showing features and components of PT.
Page 14: Revisions were made to DIP switch settings.
Page 15: Revisions were made to memory settings.
Pages 15 to 20: NT2000M installation information was added.
Pages 21 to 27: NT2000M wiring and connector information was added.
Pages 30 to 31: Information was added concerning powering up and initializing the memory.
Pages 36 to 44: Information was added regarding NT2000M display functions.
Pages 48 to 50: Information was added regarding numeric input.
Page 52: Changes were made to menu illustration.
Pages 53 to 59: Changes were made to information regarding Maintenance Mode.
Pages 64 to 69: Changes were made and information was added regarding maintenance
and inspection procedures.
Appendix A: Changes made to optional items.
Appendix B: Changes made to specifications.
