Modbus User Map; Real Time Clock - GE G60 Instruction Manual

Generator protection system
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PRODUCT SETUP
Description
...
Virtual Input 64

5.3.5 Modbus user map

SETTINGS  PRODUCT SETUP  MODBUS USER MAP
 MODBUS USER MAP
The Modbus user map provides read-only access for up to 256 registers. To obtain a memory map value, enter the address
in the
line (converted from hex to decimal format). The corresponding value (if programmed) displays in the
ADDRESS
line. A value of "0" in subsequent register
incremented by 1. An address value of "0" in the initial register means "none" and values of "0" display for all registers.
Different
ADDRESS
The UR Family Communications Guide outlines the Modbus memory map. The map is also viewable in a web browser;
enter the IP address of the G60 in a web browser and click the option.

5.3.6 Real time clock

5
5.3.6.1 Menu
SETTINGS  PRODUCT SETUP  REAL TIME CLOCK
 REAL TIME
 CLOCK
The relay contains a real time clock (RTC) to create time stamps for communications protocols as well as for historical data,
such as event records and oscillography. When the relay restarts, the RTC initializes from an onboard battery-backed
clock, which has the same accuracy as an electronic watch, approximately ±1 minute per month (~23 ppm). Once the RTC
is synchronized with the Precision Time Protocol (PTP), IRIG-B, or SNTP, its accuracy approaches that of the synchronizing
time delivered to the relay. While the RTC is not synchronized via PTP or IRIG-B, or the relay determines that it has an offset
possibly greater than 10 µs from the international time standard, the
activated.
The
SYNCHRONIZING SOURCE
the priority sequence of the time synchronization source, to determine which of the available external time sources to use
for time synchronization. A setting of None causes the RTC and the synchrophasor clock to free-run, and the clock can be
changed from the front panel or from communications protocols. A setting of PP/IRIG-B/PTP/Other, IRIG-B/PP/PTP/Other, or
PP/PTP/IRIG-B/Other causes the relay to track the first source named that is enabled and operational, or free-run if none of
5-96
Value
...
64
ADDRESS 1:
VALUE:
ADDRESS 256:
VALUE:
ADDRESS
values can be entered as required in any of the register positions.
SYNCRONIZING SOURCE:
None
REAL TIME CLOCK
EVENTS: Disabled
IRIG-B SIGNAL TYPE:
None
 PRECISION TIME
 PROTOCOL (1588)
 SNTP PROTOCOL
 LOCAL TIME
setting displays when the relay includes the IEEE 1588 software option. The setting configures
0
Range: 0 to 65535 in steps of 1
0
0
Range: 0 to 65535 in steps of 1
0
lines automatically returns values for the previous
Range: None, PP/IRIG-B/PTP/Other, IRIG-B/PP/PTP/
Other, PP/PTP/IRIG-B/Other
Range: Enabled, Disabled
Range: None, DC Shift, Amplitude Modulated
See below
See below
See below
CLOCK UNSYNCHRONIZED
G60 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
VALUE
lines
ADDRESS
FlexLogic operand is

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