GE 869 Communications Manual page 338

FORMAT CODES
11-244
Code
F23
Example: -1.234 stored as -1234 i.e. 64302
F30
1st 16 bitsHigh Order Word of Long Value
2nd 16 bitsLow Order Word of Long Value
Example: -123456 stored as -123456
i.e. 1st word: FFFE hex, 2nd word: 1DC0 hex
F31
1st 16 bitsHigh Order Word of Long Value
2nd 16 bitsLow Order Word of Long Value
Example: -12345.6 stored as -123456
i.e. 1st word: FFFE hex, 2nd word: 1DC0 hex
F32
1st 16 bitsHigh Order Word of Long Value
2nd 16 bitsLow Order Word of Long Value
Example: -1234.56 stored as -123456
i.e. 1st word: FFFE hex, 2nd word: 1DC0 hex
F33
1st 16 bitsHigh Order Word of Long Value
2nd 16 bitsLow Order Word of Long Value
Example: -123.456 stored as -123456
i.e. 1st word: FFFE hex, 2nd word: 1DC0 hex
F50
Indicates the current time in seconds elapsed since 00:00:00 January 1, 1970.
F51
Fraction of seconds count
F52
F53
F54
F55
F60_8A
Grandmaster ID
F60_34
Custom Text. 34 characters long
F60_26
Custom Text. 26 characters long
F60_14
Custom Text. 14 characters long
F60_6
Custom Text For Units
CHAPTER 11: MODBUS MEMORY MAP
Type Definition
signed 16 bits 2's Complement Signed Value, 3 Decimal
Places
signed 32 bits 2's Complement Signed Long Value
signed 32 bits 2's Complement Signed Long Value, 1 Decimal
Place
signed 32 bits 2's Complement Signed Long Value, 2 Decimal
Places
signed 32 bits 2's Complement Signed Long Value, 3 Decimal
Places
unsigned 32 bits Time and Date (unsigned 32-bit integer)
unsigned 32 bits Number of Microseconds (unsigned 32-bit
integer)
unsigned 32 bits RTC Time in Seconds
unsigned 32 bits Date MM/DD/YYYY
unsigned 32 bits Time HH:MM:SS:hh
unsigned 32 bits Time HH:MM
unsigned 16 bits Two 8-BIT Characters Packed Into 16-BIT
Unsigned
unsigned 16 bits Two 8-BIT Characters Packed Into 16-BIT
Unsigned
unsigned 16 bits Two 8-BIT Characters Packed Into 16-BIT
Unsigned
unsigned 16 bits Two 8-BIT Characters Packed Into 16-BIT
Unsigned
unsigned 16 bits Two 8-BIT Characters Packed Into 16-BIT
Unsigned
869 MOTOR PROTECTION SYSTEM – COMMUNICATIONS GUIDE