
CHAPTER 4: MODBUS MEMORY MAP
DATA FORMATS
750/760 FEEDER MANAGEMENT RELAY – COMMUNICATIONS GUIDE
4 - 59
F55
Front Panel Key
0
'0'
1
'1'
2
'2'
3
'3'
4
'4'
5
'5'
6
'6'
7
'7'
8
'8'
9
'9'
10
'.'
13
'Value Up'
14
'Value Down'
15
'Message Up'
16
'Message Down'
17
'Message Right'
18
'Enter'
19
'Escape'
20
'Menu'
21
'Message Left'
22
'Reset'
23
'Open'
24
'Close'
25
'Help'
31
No Key
F56
Transfer Function
0
Disabled
1
Incomer 1
2
Incomer 2
3
Bus Tie
F57
Output Relays (3-7)
0004h
3 Alarm (0 = Do Not Operate, 1 = Operate)
0008h
4 Auxiliary (0 = Do Not Operate, 1 = Operate)
0010h
5 Auxiliary (0 = Do Not Operate, 1 = Operate)
0020h
6 Auxiliary (0 = Do Not Operate, 1 = Operate)
0040h
7 Auxiliary (0 = Do Not Operate, 1 = Operate)
F58
Demand Measurement Type
0
Thermal Exponential
1
Block Interval
2
Rolling Demand
F59
2
Overcurrent Blocking Flags
0001h
2
Phase Inst OC 1 (0 = Do Not Block, 1= Block)
0002h
2
Neutral Inst OC 1 (0 = Do Not Block, 1= Block)
0004h
2
Ground Inst OC (0 = Do Not Block, 1= Block)
0008h
2
Neg Seq Inst OC (0 = Do Not Block, 1= Block)
0010h
3
Sens Gnd Inst OC (0 = Do Not Block, 1= Block)
F61
C400 Self Test Errors
0001h
A100 Communications (0 = OK, 1 = Failing)
8000h
Prototype Unit (0 = OK, 1 = Installed)
Table 4: Data Formats (Sheet 14 of 20)
Type
Value
Description
1 2 3 4 5 6 7 8 9 10 11 12 13
For explanation of footnotes, see notes of end of Table.