Chapter 1. Modbus Communications
18
Communications Options User’s Guide
Temp-
erature
Inputs
Supply Temp
F
2 LSW float
63 0x003E 1087 0x043E 2111 0x083E 3135 0x0C3E 4159 0x103E
Return Temp
F
2 LSW float
65 0x0040 1089 0x0440 2113 0x0840 3137 0x0C40 4161 0x1040
Supply-Rtn
F
2 LSW float
67 0x0042 1091 0x0442 2115 0x0842 3139 0x0C42 4163 0x1042
Supply Dens
F
2 LSW float
69 0x0044 1093 0x0444 2117 0x0844 3141 0x0C44 4165 0x1044
Return Dens
F
2 LSW float
71 0x0046 1095 0x0446 2119 0x0846 3143 0x0C46 4167 0x1046
Delta h
F
2 LSW float
73 0x0048 1097 0x0448 2121 0x0848 3145 0x0C48 4169 0x1048
Pressure
Inputs
Pressure Input
F
2 LSW float
75 0x004A 1099 0x044E 2123 0x084A 3147 0x0C4A 4171 0x104A
Special
Inputs
Special Input 1
F
2 LSW float
77 0x004C 1101 0x044C 2125 0x084C 3149 0x0C4C 4173 0x104C
Special Input 2 F
2 LSW float
79 0x004E
1103 0x044E 2127 0x084E 3151 0x0C4E 4175 0x104E
Special Input 3 F
2 LSW float
81 0x0050 1105 0x0450 2129 0x0850 3153 0x0C50 4177 0x1050
Special Input 4 F
2 LSW float
83 0x0052 1107 0x0452 2131 0x0852 3155 0x0C52 4179 0x1052
Flow
Totals
FWD Total
D
4 LSW
129 0x0080 1153 0X0480 2177 0X0880 3201 0X0C80 4225 0X1080
REV Total
D
4 LSW
133 0x0084 1157 0X0484 2181 0X0884
3205
4229 0X1084
FWD Mass
D
4 LSW
137 0x0088 1161 0X0488 2185 0X0888
3209
4233 0X1088
REV Mass
D
4 LSW
141 0x008C 1165 0X048C 2189 0X088C 3213 0X0C8C 4237 0X108C
FWD Energy
D
4 LSW
145 0x0090 1169 0X0490 2193 0X0890 3217 0X0C90 4241 0X1090
REV Energy
D
4 LSW
149 0x0094 1173 0X0494 2197 0X0894 3221 0X0C94 4245 0X1094
Totl. Time
D
4 LSW
153 0x0098 1177 0X0498 2201 0X0898 3225 0X0C98 4249 0X1098
STD FWD Total D
4 LSW
157 0x009C 1181 0X049C 2205 0X089C
3229
4253 0X109C
STD REV Total
D
4 LSW
161 0x00A0 1185 0X04A0 2209 0X08A0 3233 0X0CA0 4257 0X10A0
STD Totl. Time
D
4 LSW
165 0x00A4 1189 0X04A4 2213 0X08A4 3237 0X0CA4 4261 0X10A4
Flow Totals
(scientific
notation)
FWD Total
Register 0
L
2 LSW float 257 0x0100 1281 0X0500 2305 0X0900 3329 0X0D00 4353 0X1100
FWD Total
Register 1
L
2 LSW float 259 0x0102 1283 0X0502 2307 0X0902 3331 0X0D02 4355 0X1102
FWD Total
Register 2
L
2 LSW float
261 0x0104 1285 0X0504 2309 0X0904 3333 0X0D04 4357 0X1104
REV Total
Register 0
L
2 LSW float 263 0x0106 1287 0X0506 2311 0X0906 3335 0X0D06 4359 0X1106
REV Total
Register 1
L
2 LSW float 265 0x0108 1289 0X0508 2313 0X0908 3337 0X0D08 4361 0X1108
REV Total
Register 2
L
2 LSW float 267 0x010A 1291 0X050A 2315 0X090A 3339 0X0D0A 4363 0X110A
FWD Mass
Register 0
L
2 LSW float 269 0x010C 1293 0X050C 2317 0X090C 3341 0X0D0C 4365 0X110C
FWD Mass
Register 1
L
2 LSW float
271 0x010E 1295 0X050E 2319 0X090E 3343 0X0D0E 4367 0X110E
4
1 day = 86,400 seconds
Table 7: Modbus Registers for the Sentinel LCT or Sentinel LNG Flowmeter
Category Measurement
Typ
e
Size Format
Composite
Register
Address
Channel 1
Register
Address
Channel 2
Register
Address
Channel 3
Register
Address
Channel 4
Register
Address