Table of Contents
Advertisement
8 COMMUNICATIONS
Table 8–7: 745 DATA FORMATS (Sheet 3 of 35)
FORMAT
APPLICABLE BITS
CODE
0000 0000 0000 0011 3 = 20 min
0000 0000 0000 0100 4 = 30 min
0000 0000 0000 0101 5 = 60 min
F17
16 bits
0000 0000 0000 0000 0 = RS485
0000 0000 0000 0001 1 = RS422
F18
16 bits
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
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
xxxx xxxx xxxx xxx1
xxxx xxxx xxxx xx1x
xxxx xxxx xxxx x1xx
xxxx xxxx xxxx 1xxx
xxxx xxxx x1xx xxxx
xxxx xxxx 1xxx xxxx
F21
16 bits
xxxx xxxx xxxx xxx1
xxxx xxxx xxxx xx1x
xxxx xxxx xxxx x1xx
xxxx xxxx xxx1 xxxx
xxxx xxxx xx1x xxxx
xxxx xxxx x1xx xxxx
GE Power Management
DEFINITION
COMMUNICATION HARDWARE
MAXIMUM DEMAND PHASE
COMMAND OPERATION CODE
RELAY STATUS
745 In Service
(0= Not In Service, 1= In Service)
Self-Test Error
(0 = No Error, 1 = Error(s))
Test Mode
(0 = Disabled, 1 = Enabled)
Differential Blocked
(0 = Not Blocked, 1 = Blocked)
Local (0 = Off, 1 = On)
Message
(0 = No Diagnostic Messages,
1 = Active Diagnostic Message(s))
SYSTEM STATUS
Transformer De-energized
(0 = Energized, 1 = De-energized)
Transformer Overload
(0 = Normal, 1 = Overload)
Load-Limit Reduced
(0 = Not Reduced, 1 = Reduced)
Setpoint Group 1
(0 = Not Active, 1 = Active)
Setpoint Group 2
(0 = Not Active, 1 = Active)
Setpoint Group 3
(0 = Not Active, 1 = Active)
745 Transformer Management Relay
8.3 MODBUS MEMORY MAP
Table 8–7: 745 DATA FORMATS (Sheet 4 of 35)
FORMAT
APPLICABLE BITS
CODE
xxxx xxxx 1xxx xxxx
F22
32 bits
1st 16 bits
1111 1111 xxxx xxxx
0000 0000
0000 0001
↓
0001 0111
xxxx xxxx 1111 1111
2nd 16 bits
0000 0000 0000 0000
0000 0000 0000 0001
↓
1110 1010 0101 1111
Note: If the time has never been set then all 32 bits will be 1.
F23
32 bits
1st 16 bits
1111 1111 xxxx xxxx
0000 0001
0000 0010
↓
0000 1100
xxxx xxxx 1111 1111
2nd 16 bits
Note: If the date has never been set then all 32 bits will be 1.
F24
16 bits
1111 xxxx xxxx xxxx
0000 xxxx xxxx xxxx
0001 xxxx xxxx xxxx
0010 xxxx xxxx xxxx
0011 xxxx xxxx xxxx
0100 xxxx xxxx xxxx
0101 xxxx xxxx xxxx
0110 xxxx xxxx xxxx
Xxxx 1111 1111 1111 CAUSE OF EVENT
xxxx 0000 0000 0000
DEFINITION
Setpoint Group 4
(0 = Not Active, 1 = Active)
TIME
Hours / Minutes (HH:MM:xx.xxx)
Hours
0 = 12 am
1 = 1 am
↓
23 = 11 pm
Minutes
0 to 59 in steps of 1
Seconds (xx:xx:SS.SSS)
0 = 0.000 s
1 = 0.001 s
↓
59999 = 59.999 s
DATE
Month / Day (MM/DD/xxxx)
Month
1 = January
2 = February
↓
12 = December
Day
1 to 31 in steps of 1
Year (xx/xx/YYYY)
1990 to 2089 in steps of 1
TYPE/CAUSE OF EVENT
TYPE OF EVENT
0 = None
1 = Off
2 = On
3 = Pickup
4 = Operate
5 = Dropout
6 = Error!
0 = No Event
8-75
8
Advertisement
Table of Contents
