CHAPTER 7: MODBUS COMMUNICATIONS
MODBUS MEMORY MAP
PQM POWER QUALITY METER – INSTRUCTION MANUAL
7–83
F47
DNP PORT
FFFF
0 = NONE
---
1 = RS232
---
2 = COM1
---
3 = COM2
---
F100
PQM OPTIONS
FFFF
No Options Installed (Chassis Mount)
0000
PQM (Display Version)
0001
T20 (4-20mA Transducer) Option
0002
T1 (0-1mA Transducer) Option
0004
C (Control) Option
0008
A (Power Analysis) Option
0010
Not Used
0020
Not Used
0040
Not Used
0080
Not Used
0100
Not Used
0200
Not Used
0400
Not Used
0800
Not Used
1000
Not Used
2000
Not Used
4000
Not Used
8000
F101
SWITCH INPUT STATUS
(0 = OPEN, 1 = CLOSED)
FFFF
Not Used
0001
Not Used
0002
Not Used
0004
Not Used
0008
Not Used
0010
Not Used
0020
Not Used
0040
Not Used
0080
Switch A
0100
Switch B
0200
Switch C
0400
Switch D
0800
Not Used
1000
Not Used
2000
Not Used
4000
Not Used
8000
Table 7–11: Memory Map Data Formats (Sheet 12 of 20)
CODE
DESCRIPTION
BITMASK