Manual

380 Rockwell Automation Publication 1426-UM001F-EN-P - November 2013
Appendix D PowerMonitor 5000 Waveform Capture and Compression (M6 model)
Where X(h) is the value (magnitude or angle) of the harmonic at order h.
Magnitude Data
Bytes 0…63 contain 32-bit encoded magnitudes V(h) and I(h) for h = DC thru
15. Byte 64 contains the exponent offset for use in the 12-bit encoded data that
follows. The remaining bytes hold the remaining harmonic magnitude values
in12-bit encoding.
Table 198 - 12-bit Encoding
Byte offset 0 Byte offset 1 Byte offset 3
Low 8 bits of X(h) High 4 bits of X(h) Low 4 bits of X(h+1) High eight bits of
X(h+1)
Byte offset0123456789101112131415
Data Info DC 1st Harmonics RMS 2nd 3rd
Byte offset 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Data Info 4th 5th 6th 7th
Byte offset 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
Data Info 8th 9th 10th 11th
Byte offset 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
Data Info 12th 13th 14th 15th
Byte offset 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79
Data Info Exp 16th & 17th 18th & 19th 20th & 21st 22nd & 23rd 24th & 25th
Byte offset 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95
Data Info 26th & 27th 28th & 29th 30th & 31st 32nd & 33rd 34th & 35th 36th
Byte offset 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111
Data Info & 37th 38th & 39th 40th & 41st 42nd & 43rd 44th & 45th 46th &
Byte offset 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127
Data Info 47th 48th & 49th 50th & 51st 52nd & 53rd 54th & 55th 56th & 57th
Byte offset 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143
Data Info 58th & 59th 60th & 61st 62nd & 63rd 64th & 65th 66th & 67th 68th
Byte offset 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159
Data Info & 69th 70th & 71st 72nd & 73rd 74th & 75th 76th & 77th 78th &
Byte offset 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175
Data Info 79th 80th & 81st 82nd & 83rd 84th & 85th 86th & 87th 88th & 89th
Byte offset 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191
Data Info 90th & 91st 92nd & 93rd 94th & 95th 96th & 97th 98th & 99th 100th
Byte offset 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207
Data Info & 101st 102nd & 103rd 104th & 105th 106th & 107th 108th & 109th 110th &
Byte offset 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223
Data Info 111th 112th & 113th 114th & 115th 116th & 117th 118th & 119th 120th & 121st
Byte offset 224 225 226 227 228 229 230 231 232
Data Info 122nd & 123rd 124th & 125th 126th & 127th