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
