CHAPTER 7: MODBUS COMMUNICATIONS
MODBUS MEMORY MAP
PQM POWER QUALITY METER – INSTRUCTION MANUAL
7–63
TOTAL
HARMONIC
DISTORTION
ALARMS
1148
Average Current THD Relay
0 to 4
1
---
F29
0=OFF
1149
Average Current THD Level
5 to 1000
5
0.1 x %
F1
100=10.0%
114A
Average Current THD Delay
5 to 6000
5
0.1 x s
F1
100=10.0 s
114B
Average Voltage THD Relay
0 to 4
1
---
F29
0=OFF
114C
Average Voltage THD Level
5 to 1000
5
0.1 x %
F1
100=10.0%
114D
Average Voltage THD Delay
5 to 6000
5
0.1 x s
F1
100=10.0 s
114E
Reserved
to
↓
↓
↓
↓
↓
↓
1157
Reserved
FREQUENCY
ALARMS
1158
Underfrequency Relay
0 to 4
1
---
F29
0=OFF
1059
Underfrequency Level
2000 to
7000
1
0.01 x Hz
F1
40.00 Hz
115A
Underfrequency Delay
1 to 100
1
0.1 x s
F1
100=10.0 s
115B
Zero Frequency Detect
0 to 1
1
---
F11
0=DISABLE
115C
Overfrequency Relay
0 to 4
1
---
F29
0=OFF
115D
Overfrequency Level
2000 to
12500
1
0.01 x Hz
F1
70.00 Hz
115E
Overfrequency Delay
1 to 100
1
0.1 x s
F1
100=10.0 s
115F
Reserved
to
↓
↓
↓
↓
↓
↓
1166
Reserved
POWER
ALARMS
1167
Power Alarms Level Base Units
0 to 1
1
---
F114
0=kW/kVAR
1168
Positive Real Power Relay
0 to 4
1
---
F29
0=OFF
1169
Positive Real Power Level in kW
1 to 65000
1
kW
F1
1000 kW
116A
Positive Real Power Delay
5 to 6000
5
0.1 x s
F1
100=10.0 s
116B
Negative Real Power Relay
0 to 4
1
---
F29
0=OFF
116C
Negative Real Power Level in kW
1 to 65000
1
kW
F1
1000 kW
116D
Negative Real Power Delay
5 to 6000
5
0.1 x s
F1
100=10.0 s
116E
Positive Reactive Power Relay
0 to 4
1
---
F29
0=OFF
116F
Positive Reactive Power Level in kVAR
1 to 65000
1
kVAR
F1
1000 kVAR
1170
Positive Reactive Power Delay
5 to 6000
5
0.1 x s
F1
100=10.0 s
1171
Negative Reactive Power Relay
0 to 4
1
---
F29
0=OFF
1172
Negative Reactive Power Level in kVAR
1 to 65000
1
kVAR
F1
1000 kVAR
1173
Negative Reactive Power Delay
5 to 6000
5
0.1 x s
F1
100=10.0 s
1174
Positive Real Power Level in MW
1 to 65000
1
0.01 MW
F1
10.00MW
1175
Negative Real Power Level in MW
1 to 65000
1
0.01 MW
F1
10.00MW
1176
Positive Reactive Power Level in MVAR
1 to 65000
1
0.01 MVAR
F1
10.00MVAR
1177
Negative Reactive Power Level in MVAR
1 to 65000
1
0.01 MVAR
F1
10.00MVAR
Table 7–10: PQM Memory Map (Sheet 47 of 55)
GROUP
ADDR
(HEX)
DESCRIPTION
RANGE
STEP
VALUE
UNITS and
SCALE
FORMAT
FACTORY
DEFAULT
Notes:* Data type depends on the Command Operation Code.** Any valid Actual Values or Setpoints address.
*** Maximum Setpoint value represents “OFF”.**** Minimum Setpoint value represents “OFF”.
***** Maximum Setpoint value represents “UNLIMITED”.****** Applicable to older revisions with VFD display only
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