D.33
Date Code 20080918 Instruction Manual SEL-749M Relay
Modbus RTU Communications Protocol
Modbus Register Map
211C (R) ROW 13 0 255 1
211D (R) ROW 14 0 255 1
211E (R) ROW 15 0 255 1
211F (R) ROW 16 0 255 1
2120 (R) ROW 17 0 255 1
2121 (R) ROW 18 0 255 1
2122 (R) ROW 19 0 255 1
2123 (R) ROW 20 0 255 1
2124 (R) ROW 21 0 255 1
2125 (R) ROW 22 0 255 1
2126 (R) ROW 23 0 255 1
2127 (R) ROW 24 0 255 1
2128 (R) ROW 25 0 255 1
2129 (R) ROW 26 0 255 1
212A (R) ROW 27 0 255 1
212B (R) ROW 28 0 255 1
212C (R) ROW 29 0 255 1
212D (R) ROW 30 0 255 1
212E (R) ROW 31 0 255 1
212F (R) ROW 32 0 255 1
2130 (R) Reserved 0 0
PAR Group Indices
3000 (R) Reserved 0 0
3001 (R) GLOBAL SETTINGS 1 3 1
3002 (R) MAIN SETTINGS 4 12 1
3003 (R) THERMAL OVERLOAD 13 31 1
3004 (R) PHASE OVERCURR 32 37 1
3005 (R) NEUTRAL OVERCURR 38 43 1
3006 (R) RESIDUAL OVERCURR 44 49 1
3007 (R) JAM SETTINGS 50 55 1
3008 (R) UNDERCURRENT SET 56 62 1
3009 (R) CURRENT IMB SET 63 68 1
300A (R) PROT. DISABLE 69 70 1
300B (R) START MONITORING 71 71 1
300C (R) STAR DELTA SET 72 73 1
300D (R) START INHIBIT SET 74 76 1
300E (R) PHASE REV SET 77 77 1
300F (R) SPEED SW SET 78 79 1
3010 (R) PTC SETTINGS 80 80 1
3011 (R) RTD SETTINGS 81 132 1
Table D.23 Modbus Register Map
a
(Sheet 23 of 26)
Address
b
(Hex) Name/Enums
c
Units
Range
Scale
Fa c tor
DeviceNet
Parameter
Number
Low High Step
Courtesy of NationalSwitchgear.com
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