GE 745 TRANSFORMER MANAGEMENT RELAY User Manual

GE Power Management 745 Transformer Management Relay 8-75
8 COMMUNICATIONS 8.3 MODBUS MEMORY MAP
8
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)
xxxx xxxx xxxx x1xx Load-Limit Reduced
(0 = Not Reduced, 1 = Reduced)
xxxx xxxx xxx1 xxxx Setpoint Group 1
(0 = Not Active, 1 = Active)
xxxx xxxx xx1x xxxx Setpoint Group 2
(0 = Not Active, 1 = Active)
xxxx xxxx x1xx xxxx Setpoint Group 3
(0 = Not Active, 1 = Active)
Table 8–7: 745 DATA FORMATS (Sheet 3 of 35)
FORMAT
CODE
APPLICABLE BITS DEFINITION
xxxx xxxx 1xxx xxxx Setpoint Group 4
(0 = Not Active, 1 = Active)
F22 32 bits TIME
1st 16 bits Hours / Minutes (HH:MM:xx.xxx)
1111 1111 xxxx xxxx Hours
0000 0000 0 = 12 am
0000 0001 1 = 1 am
↓ ↓
0001 0111 23 = 11 pm
xxxx xxxx 1111 1111 Minutes
0 to 59 in steps of 1
2nd 16 bits Seconds (xx:xx:SS.SSS)
0000 0000 0000 0000 0 = 0.000 s
0000 0000 0000 0001 1 = 0.001 s
↓ ↓
1110 1010 0101 1111 59999 = 59.999 s
Note: If the time has never been set then all 32 bits will be 1.
F23 32 bits DATE
1st 16 bits Month / Day (MM/DD/xxxx)
1111 1111 xxxx xxxx Month
0000 0001 1 = January
0000 0010 2 = February
↓ ↓
0000 1100 12 = December
xxxx xxxx 1111 1111 Day
1 to 31 in steps of 1
2nd 16 bits Year (xx/xx/YYYY)
1990 to 2089 in steps of 1
Note: If the date has never been set then all 32 bits will be 1.
F24 16 bits TYPE/CAUSE OF EVENT
1111 xxxx xxxx xxxx TYPE OF EVENT
0000 xxxx xxxx xxxx 0 = None
0001 xxxx xxxx xxxx 1 = Off
0010 xxxx xxxx xxxx 2 = On
0011 xxxx xxxx xxxx 3 = Pickup
0100 xxxx xxxx xxxx 4 = Operate
0101 xxxx xxxx xxxx 5 = Dropout
0110 xxxx xxxx xxxx 6 = Error!
Xxxx 1111 1111 1111 CAUSE OF EVENT
xxxx 0000 0000 0000 0 = No Event
Table 8–7: 745 DATA FORMATS (Sheet 4 of 35)
FORMAT
CODE
APPLICABLE BITS DEFINITION

GE 745 TRANSFORMER MANAGEMENT RELAY Specifications

General

Brand	GE
Model	745 TRANSFORMER MANAGEMENT RELAY
Category	Relays
Language	English