Allen-Bradley MicroLogix 1200 Reference Manual page 5

New Information
The table below lists sections that document new features and
additional information about existing features.
For This New Information
Added MicroLogix 1200 1762-L24BXB and 1762-L40BXB Controllers
Added configuration information for several new I/O modules:
• 1762-IQ16, -OA8, -OB8, -OB16, -OW16, -IF4
• 1769-OB16P and -IT6
Added section on Configuring Expansion I/O Using RSLogix 500
Made minor changes to clarify data file numbering.
Modified section on Writing Data to the Real-Time Clock
In the Communications Status File, General Channel Status Block, Bit 15,
the Comms Toggle Push Button Bit, is now valid for MicroLogix 1200 and
MicroLogix 1500 (previously was only the MicroLogix 1500).
Added IMPORTANT notes about using the High-Speed Counter (HSC).
Added IMPORTANT notes about using the High-Speed Outputs (PTO and
PWM).
Modified text that describes the PWM Accel/Decel Delay (ADD)
parameter.
Added PTO Controlled Stop (CS) parameter (MicroLogix 1500 only).
Modified text that describes the Scale (SCL) instruction.
Corrected text for the PID Reset Term (Ti). The last sentence now reads:
"A value of 1 adds the maximum integral term into the PID equation."
(previously said that "a value of 1 adds the minimum integral term...")
MicroLogix 1200 Series B Controllers can use the entire set of ASCII
instructions
Added section on Programming ASCII Instructions with information on
how to prevent communications shut-down when using ASCII
instructions.
Added Ctrl-characters to the ASCII Character Set chart.
Added MSG File Element description.
The ASCII String Manipulation Error bit (S:5/15) now applies to
MicroLogix 1200 Series B Controllers as well as the MicroLogix 1500.
Added Fault Classification (non-user, recoverable, non-recoverable) to the
Fault Messages troubleshooting table.
Added new Error Code:
001A - User Program Incompatible with OS at Power-Up
Added alphabetical list of instructions for easy reference.
ASCII Protocol can be used by MicroLogix 1200 Series B Controllers as
well as the MicroLogix 1500.
Updated Instruction Execution Times
Summary of Changes
See
Chapter 1, 5, 6
Chapter 1
Chapter 1
Chapter 2
Chapter 3
Chapter 3
Chapter 5
Chapter 6
Chapter 6
Chapter 6
Chapter 10
Chapter 19
Chapter 20
Chapter 20
Chapter 20
Chapter 21
Appendix C
Appendix D
Appendix D
Inside Back
Cover
Appendix E
Appendix A
and B, and
throughout
manual
Publication 1762-RM001C-EN-P - November 2000
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