ABB ScreenMaster RVG200, Operating Instructions Manual

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ScreenMaster RVG200
Paperless recorder Appendix B – MODBUS TCP / MODBUS 485
160 OI/RVG200-EN
B.5 Operating mode MODBUS registers
Tables B.12 to B.14 detail the contents of the MODBUS TCP registers accessible while the recorder is in
the operating mode.
Two data types are used:

32-bit single precision floating point data in IEEE format

64-bit double precision floating point data in IEEE format
Note.

When writing to a parameter that occupies more than one register position, all registers relating to
that parameter MUST be written to as part of a multiple register write. If this is not achieved a NAK
exception response is issued. Individual registers can be read without causing an exception
response.

When accessing a parameter that occupies more than one register position, the lowest numbered
register contains the most significant data.
Read only, IEEE floating point 32 bit number
Module
A
MODBUS
register
Module
B
MODBUS
register
Module
C
MODBUS
register
Module
D
MODBUS
register
A1 0001 and 0002 B1 0013 and 0014 C1 0025 and 0026 D1 0037 and 0038
A2 0003 and 0004 B2 0015 and 0016 C2 0027 and 0028 D2 0039 and 0040
A3 0005 and 0006 B3 0017 and 0018 C3 0029 and 0030 D3 0041 and 0042
A4 0007 and 0008 B4 0019 and 0020 C4 0031 and 0032 D4 0043 and 0044
A5 0009 and 0010 B5 0021 and 0022 C5 0033 and 0034 D5 0045 and 0046
A6 0011 and 0012 B6 0023 and 0024 C6 0035 and 0036 D6 0047 and 0048
Table B.12 Analog inputs
Read / Write, IEEE floating point 32 bit number
Alarm MODBUS
registers
Alarm MODBUS
registers
Alarm MODBUS
registers
Alarm MODBUS
registers
1A 101 and 102 7A 149 and 150 13A 197 and 198 19A 245 and 246
1B 103 and 104 7B 151 and 152 13B 199 and 200 19B 247 and 248
1C 105 and 106 7C 153 and 154 13C 201 and 202 19C 249 and 250
1D 107 and 108 7D 155 and 156 13D 203 and 204 19D 251 and 252
2A 109 and 110 8A 157 and 158 14A 205 and 206 20A 253 and 254
2B 111 and 112 8B 159 and 160 14B 207 and 208 20B 255 and 256
2C 113 and 114 8C 161 and 162 14C 209 and 210 20C 257 and 258
2D 115 and 116 8D 163 and 164 14D 211 and 212 20D 259 and 260
3A 117 and 118 9A 165 and 166 15A 213 and 214 21A 261 and 262
3B 119 and 120 9B 167 and 168 15B 215 and 216 21B 263 and 264
3C 121 and 122 9C 169 and 170 15C 217 and 218 21C 265 and 266
3D 123 and 124 9D 171 and 172 15D 219 and 220 21D 267 and 268
Table B.13 Alarm trip values