Network Device Owner's Manual
Modbus I/O Assignments
Manual Documentation Number: Zlinx485m-1808
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00001-00112 Discrete Digital Outputs
Modbus function codes supported are:
Function 1: Read DO Status
Function 2: Read DI’s
Function 3: Read AO Status
Function 4: Read AI’s
Function 5: Write to Single DO (firmware v2.0 or higher)
Function 6: Write to Single AO
Function 15: Write to Multi DO’s
Modbus Address Description #Bytes Count V Range
00001 Base Digital Output-1 - 0-1 Refer to Appendix A
00002 Base Digital Output-2 - 0-1 Refer to Appendix A
00003 Base Digital Output-3 - 0-1 Refer to Appendix A
00004 Base Digital Output-4 - 0-1 Refer to Appendix A
00005 Base Digital Output-5 - 0-1 Refer to Appendix A
00006 Base Digital Output-6 - 0-1 Refer to Appendix A
00007 Base Digital Output-7 - 0-1 Refer to Appendix A
00008 Base Digital Output-8 - 0-1 Refer to Appendix A
00009 Base Digital Output-9 - 0-1 Refer to Appendix A
00010 Base Digital Output-10 - 0-1 Refer to Appendix A
00011 Base Digital Output-11 - 0-1 Refer to Appendix A
00012 Base Digital Output-12 - 0-1 Refer to Appendix A
00013 Base Digital Output-13 - 0-1 Refer to Appendix A
00014 Base Digital Output-14 - 0-1 Refer to Appendix A
00015 Base Digital Output-15 - 0-1 Refer to Appendix A
00016 Base Digital Output-16 - 0-1 Refer to Appendix A
00017 EXP-1 Digital Output-1 - 0-1 Refer to Appendix A
00018 EXP-1 Digital Output-2 - 0-1 Refer to Appendix A
00019 EXP-1 Digital Output-3 - 0-1 Refer to Appendix A
00020 EXP-1 Digital Output-4 - 0-1 Refer to Appendix A
00021 EXP-1 Digital Output-5 - 0-1 Refer to Appendix A
00022 EXP-1 Digital Output-6 - 0-1 Refer to Appendix A
00023 EXP-1 Digital Output-7 - 0-1 Refer to Appendix A
00024 EXP-1 Digital Output-8 - 0-1 Refer to Appendix A
00025 EXP-1 Digital Output-9 - 0-1 Refer to Appendix A
00026 EXP-1 Digital Output-10 - 0-1 Refer to Appendix A
00027 EXP-1 Digital Output-11 - 0-1 Refer to Appendix A
00028 EXP-1 Digital Output-12 - 0-1 Refer to Appendix A
00029 EXP-1 Digital Output-13 - 0-1 Refer to Appendix A
00030 EXP-1 Digital Output-14 - 0-1 Refer to Appendix A
00031 EXP-1 Digital Output-15 - 0-1 Refer to Appendix A
00032 EXP-1 Digital Output-16 - 0-1 Refer to Appendix A
00033 EXP-2 Digital Output-1 - 0-1 Refer to Appendix A
00034 EXP-2 Digital Output-2 - 0-1 Refer to Appendix A
00035 EXP-2 Digital Output-3 - 0-1 Refer to Appendix A
00036 EXP-2 Digital Output-4 - 0-1 Refer to Appendix A