CHAPTER 7: MODBUS COMMUNICATIONS
MODBUS MEMORY MAP
PQM POWER QUALITY METER – INSTRUCTION MANUAL
7–85
F104
OUTPUT RELAY FLAG
(0=DE-ENERGIZED,1=ENERGIZED)
FFFF
Alarm Relay
0001
Auxiliary Relay 1
0002
Auxiliary Relay 2
0004
Auxiliary Relay 3
0008
Not Used
0010
Not Used
0020
Not Used
0040
Not Used
0080
Not Used
0100
Not Used
0200
F104
con’t
Not Used
0400
Not Used
0800
Not Used
1000
Not Used
2000
Not Used
4000
Not Used
8000
F105
ALARM STATUS FLAGS 1:
FFFF
Phase Undercurrent Alarm
0001
Phase Overcurrent Alarm
0002
Neutral Overcurrent Alarm
0004
Undervoltage Alarm
0008
Overvoltage Alarm
0010
Current Unbalance Alarm
0020
Voltage Unbalance Alarm
0040
Voltage Phase Reversal
0080
Power Factor Lead Alarm 1
0100
Power Factor Lead Alarm 2
0200
Power Factor Lag Alarm 1
0400
Power Factor Lag Alarm 2
0800
Positive Real Power Alarm
1000
Negative Real Power Alarm
2000
Positive Reactive Power Alarm
4000
Negative Reactive Power Alarm
8000
Table 7–11: Memory Map Data Formats (Sheet 14 of 20)
CODE
DESCRIPTION
BITMASK
Содержание Multilin PQM
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