Application and Installation Guide EMCP 4 SCADA Data Links
©2013 Caterpillar
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APPENDIX A MODBUS REGISTER DATA
Parameter Name R/W
Holding
Register
Ct
Data Interpretation
Sec
Lvl
4.2 4.3 4.4
Scaling
(Resolution)
Offset Limits (Range)
Generator Average Line-
Line AC RMS Voltage
R 100 0x0063 1 1 V / bit 0 V 0 to 64255 V 0 ● ● ●
Generator Average AC RMS
Current
R 101 0x0064 1 1 A / bit 0 A 0 to 64255 A 0 ● ● ●
Generator Average AC RMS
Frequency
R 102 0x0065 1 1/128 Hz / bit 0 Hz 0 to 501.9922 Hz 0 ● ● ●
Generator Overall Power
Factor
R 103 0x0066 1 1/16384 / bit -1.0 -1.0 to 1.0 0 ● ● ●
Generator Overall Power
Factor Lagging
R 104 0x0067 1
0 = Power factor leading
1 = Power factor lagging
0 ● ● ●
Generator Total Percent kW R 105 0x0068 1 0.0078125 % / bit -251 % -251 to 250.99 % 0 ● ● ●
Generator Total Real Power R 106 0x0069 2 1 W / bit
-2000000000
W
-2000000000 to
+2211081215 W
0 ● ● ●
Generator Phase A Line-
Line AC RMS Voltage
R 108 0x006B 1 1 V / bit 0 V 0 to 64255 V 0 ● ● ●
Generator Phase B Line-
Line AC RMS Voltage
R 109 0x006C 1 1 V / bit 0 V 0 to 64255 V 0 ● ● ●
Generator Phase C Line-
Line AC RMS Voltage
R 110 0x006D 1 1 V / bit 0 V 0 to 64255 V 0 ● ● ●
Generator Phase A AC RMS
Current
R 111 0x006E 1 1 A / bit 0 A 0 to 64255 A 0 ● ● ●
Generator Phase B AC RMS
Current
R 112 0x006F 1 1 A / bit 0 A 0 to 64255 A 0 ● ● ●
Generator Phase C AC RMS
Current
R 113 0x0070 1 1 A / bit 0 A 0 to 64255 A 0 ● ● ●
Generator Phase A Line-
Neutral AC RMS Voltage
R 114 0x0071 1 1 V / bit 0 V 0 to 64255 V 0 ● ● ●
Generator Phase B Line-
Neutral AC RMS Voltage
R 115 0x0072 1 1 V / bit 0 V 0 to 64255 V 0 ● ● ●
Generator Phase C Line-
Neutral AC RMS Voltage
R 116 0x0073 1 1 V / bit 0 V 0 to 64255 V 0 ● ● ●
Generator Phase A Real
Power
R 117 0x0074 2 1 W / bit
-2000000000
W
-2000000000 to
+2211081215 W
0 ● ● ●
Generator Phase B Real
Power
R 119 0x0076 2 1 W / bit
-2000000000
W
-2000000000 to
+2211081215 W
0 ● ● ●
Generator Phase C Real
Power
R 121 0x0078 2 1 W / bit
-2000000000
W
-2000000000 to
+2211081215 W
0 ● ● ●
Generator Phase A Apparent
Power
R 123 0x007A 2 1 VA / bit
-2000000000
VA
-2000000000 to
+2211081215 VA
0 ● ● ●
Generator Phase B Apparent
Power
R 125 0x007C 2 1 VA / bit
-2000000000
VA
-2000000000 to
+2211081215 VA
0 ● ● ●
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