Schweitzer Engineering Laboratories SEL-749M - Page 248

D.14
SEL-749M Relay Instruction Manual Date Code 20080918
Modbus RTU Communications Protocol
Modbus Register Map
Protection Disable
0045 (RW) PROT INHIBT TIME
0 = Off
s024011 169
0046 (RW) OL INHIBIT TIME
0 = Off
s024011 170
Start Monitoring
0047 (RW) START MOTOR TIME
0 =Off
s024011 171
Star Delta Settings
0048 (RW) STAR-DELTA ENABL
0 = N
1 = Y
01 1 172
0049 (RW) MAX STAR TIME
0 =Off
s060011 173
Start Inhibit Settings
004A (RW) STARTS/HR
0=Off
01511 174
004B (RW) MIN. OFF TIME
0=Off
min 0 150 1 1 175
004C (RW) RESTART BLK TIME min 0 60 1 1 176
Phase Reversal Settings
004D (RW) PH REV. ENABLE
0 = N
1 = Y
01 1 177
Speed Switch Settings
004E (RW) SS TRIP DELAY
0=Off
s024011 178
004F (RW) SS WARN DELAY
0=Off
s024011 179
PTC Settings
0050 (RW) PTC ENABLE
0 = N
1 = Y
01 1 180
RTD Settings
0051 (RW) RTD ENABLE
0 = N
1 = Y
01 1 181
0052 (RW) RTD1 LOCATION
0 = OFF
1 = WDG
2 = BRG
3 = AMB
4 = OTH
04 1 182
Table D.23 Modbus Register Map
a
(Sheet 4 of 26)
Address
b
(Hex) Name/Enums
c
Units
Range
Scale
Fa c tor
DeviceNet
Parameter
Number
Low High Step
Courtesy of NationalSwitchgear.com