Sel 551 - Page 204

A.8
SEL-551 Relay Instruction Manual Date Code 20110408
Firmware and Manual Versions
Instruction Manual
Section 7
➤ Updated Standard Event Report Summary to include CT Saturation Protection information.
➤ Updated the example on the Event Summary Report.
➤ Added Raw Event Report Commands.
Appendix A
➤ Updated for firmware version R108 and R507.
20010518
Title Page
➤ Added Caution, Danger, and Warning information to the back of the cover page of the Manual.
➤ Replaced Standard Product Warranty page with warranty statement on cover page.
➤ updated password information.
Section 1
➤ Added Tightening Torque information to General Specifications.
➤ Updated Power Supply specification.
Section 2
➤ Updated Figure 2.7: SEL-551 Relay Rear Panel (Plug-In Connectors Option).
➤ Added caution note to the Clock Battery subsection.
Appendix G
➤ Added clarification to Command Code 10 in Table G.16: Modbus Command Codes.
20000211 Reissued all pages with new date code with four-digit year (e.g., 20000211).
Section 2
➤ Added High-Current Interrupting Output Contacts discussion.
Section 3
➤ Updated target logic operation.
Section 4
➤ Updated serial port Setting Sheets.
Section 5
➤ Added Table 5.2: Serial Port Protocols. Incremented all subsequent table numbers and cross references.
Appendix A
➤ Updated for firmware version R506 and R107.
Appendix G
➤ Added: Appendix G: Modbus® RTU Communications Protocol.
991117
Section 1
➤ Made minor corrections to General Specifications.
Section 2
➤ Added Figure 2.3.
Section 3
➤ Reissued due to cross-reference changes.
Section 4
➤ Reissued due to cross-reference changes.
Section 7
➤ Reissued due to cross-reference changes.
Appendix B
➤ Added new Appendix B: Firmware Upgrade Instructions and relettered appendices following Appendix B.
991112
Appendix A
➤ Updated for firmware version R505 and R106.
Table A.2 Instruction Manual Revision History (Sheet 6 of 8)
Revision Date Summary of Revisions