Memory Map Data Formats - GE TRANSFORMER MANAGEMENT RELAY 745 Instruction Manual

7.4 MODBUS MEMORY MAP
Table 7–6: 745 DATA FORMATS (Sheet 1 of 25)
CODE APPLICABLE BITS
F1 16 bits
Example: 1234 stored as 1234
F2 16 bits
Example: 123.4 stored as 1234
F3 16 bits
Example: 12.34 stored as 1234
F4 16 bits
Example: –1234 stored as –1234
F5 16 bits
Example: –123.4 stored as –1234
F6 16 bits
Example: –12.34 stored as –1234
F7 32 bits
1st 16 bits
2nd 16 bits
Example: 123456 stored as 123456
F8 32 bits
1st 16 bits
2nd 16 bits
Example: 12345.6 stored as 123456
F9 32 bits
1st 16 bits
2nd 16 bits
Example: 1234.56 stored as 123456
F10 32 bits
1st 16 bits
2nd 16 bits
Example: -123456 stored as -123456
7
F11 32 bits
1st 16 bits
2nd 16 bits
Example: –12345.6 stored as –123456
F12 32 bits
1st 16 bits
2nd 16 bits
Example: –1234.56 stored as –123456
F13 16 bits
0000 0000 0000 0001
0000 0000 0000 0010
↓
0000 0000 0001 1010
F14 16 bits
xxxx 1111 xxxx xxxx
xxxx xxxx 1111 xxxx
xxxx xxxx xxxx 1111
Example: Revision 2.83 stored as 0283 hex
7-48
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DEFINITION
UNSIGNED VALUE
UNSIGNED VALUE
1 DECIMAL PLACE
UNSIGNED VALUE
2 DECIMAL PLACES
2's COMPLEMENT SIGNED VALUE
2's COMPLEMENT SIGNED VALUE,
1 DECIMAL PLACE
2's COMPLEMENT SIGNED VALUE,
2 DECIMAL PLACES
UNSIGNED LONG VALUE
high order word of long value
low order word of long value
UNSIGNED LONG VALUE,
1 DECIMAL PLACE
high order word of long value
low order word of long value
UNSIGNED LONG VALUE,
2 DECIMAL PLACES
high order word of long value
low order word of long value
2's COMPLEMENT SIGNED LONG
VALUE
high order word of long value
low order word of long value
2's COMPLEMENT SIGNED LONG
VALUE, 1 DECIMAL PLACE
high order word of long value
low order word of long value
2's COMPLEMENT SIGNED LONG
VALUE, 2 DECIMAL PLACES
high order word of long value
low order word of long value
HARDWARE REVISION
1 = A
2 = B
↓
26 = Z
SOFTWARE REVISION
Major Revision Number
0 to 9 in steps of 1
Minor Revision Number
0 to 9 in steps of 1
Ultra Minor Revision Number
0 to 9 in steps of 1
745 Transformer Management Relay

7.4.2 MEMORY MAP DATA FORMATS

Table 7–6: 745 DATA FORMATS (Sheet 2 of 25)
CODE APPLICABLE BITS DEFINITION
F15 16 bits INSTALLED OPTIONS
xxxx xxxx xxxx xxx1 Windings Per Phase (0 = Two
Windings, 1 = Three Windings)
xxxx xxxx xxxx xx1x Rating of Winding 1 Phase Current
Inputs (0 = 1 A, 1 = 5 A)
xxxx xxxx xxxx x1xx Rating of Winding 2 Phase Current
Inputs (0 = 1 A, 1 = 5 A)
xxxx xxxx xxxx 1xxx Rating of Winding 3 Phase Current
Inputs (0 = 1 A, 1 = 5 A)
xxxx xxxx xxx1 xxxx Rating of Winding 1/2 Ground Current
Inputs (0 = 1 A, 1 = 5 A)
xxxx xxxx xx1x xxxx Rating of Winding 2/3 Ground Current
Inputs (0 = 1 A, 1 = 5 A)
xxxx xxxx x1xx xxxx Control Power (0=LO [20-60 Vdc],
1 = HI [90-300 Vdc/70-265 Vac])
xxxx xxxx 1xxx xxxx Analog Input/Outputs
(0 = Not Installed, 1 = Installed)
xxxx xxx1 xxxx xxxx Loss-Of-Life
(0 = Not Installed, 1 = Installed)
xxxx xx1x xxxx xxxx Restricted Ground Fault
(0 = Not Installed, 1 = Installed)
F16 16 bits DEMAND INTERVAL/RESPONSE
0000 0000 0000 0000 0 = 5 min
0000 0000 0000 0001 1 = 10 min
0000 0000 0000 0010 2 = 15 min
0000 0000 0000 0011 3 = 20 min
0000 0000 0000 0100 4 = 30 min
0000 0000 0000 0101 5 = 60 min
F17 16 bits COMMUNICATION HARDWARE
0000 0000 0000 0000 0 = RS485
0000 0000 0000 0001 1 = RS422
F18 16 bits MAXIMUM DEMAND PHASE
0000 0000 0000 0000 0 = in phase A
0000 0000 0000 0001 1 = in phase B
0000 0000 0000 0010 2 = in phase C
F19 16 bits COMMAND OPERATION CODE
0000 0000 0000 0000 0000 = NO OPERATION
0000 0000 0000 0001 0001 = REMOTE RESET
0000 0000 0000 0010 0002 = TRIGGER TRACE MEMORY
0000 0000 0000 0011 0003 = CLEAR MAX DEMAND DATA
0000 0000 0000 0100 0004 = CLEAR EVENT RECORDER
0000 0000 0000 0110 0006 = CLEAR TRACE MEMORY
0000 0000 0000 0111 0007 = CLEAR ENERGY DATA
F20 16 bits RELAY STATUS
xxxx xxxx xxxx xxx1 745 In Service
(0= Not In Service, 1= In Service)
xxxx xxxx xxxx xx1x Self-Test Error
(0 = No Error, 1 = Error(s))
xxxx xxxx xxxx x1xx Test Mode (0 = Disabled, 1 = Enabled)
xxxx xxxx xxxx 1xxx Differential Blocked
(0 = Not Blocked, 1 = Blocked)
xxxx xxxx x1xx xxxx Local (0 = Off, 1 = On)
xxxx xxxx 1xxx xxxx Message
(0 = No Diagnostic Messages, 1 =
Active Diagnostic Message(s))
F21 16 bits SYSTEM STATUS
xxxx xxxx xxxx xxx1 Transformer De-energized
(0 = Energized, 1 = De-energized)
xxxx xxxx xxxx xx1x Transformer Overload
(0 = Normal, 1 = Overload)
7 COMMUNICATIONS
GE Multilin