Remaining Connection Status; Parallel Redundancy Protocol (Prp) - GE N60 Instruction Manual

6 ACTUAL VALUES
• CHANNEL 1 STATUS: This represents the receiver status of each channel. If the value is "OK", teleprotection is
enabled and data is being received from the remote terminal; If the value is "FAIL", teleprotection enabled and data is
not being received from the remote terminal. If "n/a", teleprotection is disabled.
• CHANNEL 1 LOST PACKETS: Data is transmitted to the remote terminals in data packets at a rate of two packets per
cycle. The number of lost packets represents data packets lost in transmission; this count can be reset to 0 through the

COMMANDS CLEAR RECORDS
• VALIDITY OF CHANNEL CONFIGURATION: This value displays the current state of the communications channel
identification check, and hence validity. If a remote relay ID does not match the programmed ID at the local relay, the
"FAIL" message will be displayed. The "N/A" value appears if the local relay ID is set to a default value of "0", the chan-
nel is failed, or if the teleprotection inputs/outputs are not enabled.

PATH: ACTUAL VALUES STATUS
 COMM STATUS
 REMAINING CONNECT
MESSAGE
MESSAGE
MESSAGE
MESSAGE
These values specify the remaining number of TCP connections still available for each protocol. Every time a connection is
used, the remaining number of connections decrements. When released, the remaining number of connections increments.
If no connection is made over the specific protocol, the number equals the maximum number available for the specific pro-
tocol.
For example, the maximum number of Modbus TCP connections is 4. Once an EnerVista session is opened on a computer
connected to the UR over Ethernet, the Modbus TCP status shows 3. If the EnerVista application is closed, the Modbus
TCP status shows 4.
Note that the maximum number of PMU TCP connections matches the number of aggregators.
The Parallel Redundancy Protocol (PRP) defines a redundancy protocol for high availability in substation automation net-
works.

PATH: ACTUAL VALUES STATUS
 PRP

MESSAGE
MESSAGE
MESSAGE
MESSAGE
GE Multilin N60 Network Stability and Synchrophasor Measurement System
menu.

COMM STATUS REMAINING CONNECT
MMS (max 5)
5
MODBUS TCP (max 4)
4
DNP (max 2)
2
IEC-104 (max 2)
2
PMU TCP (max 4)
4

PRP
Total Rx Port A:
Total Rx Port B:
Total Errors:
Mismatches Port A:
Mismatches Port B:

6.2.19 REMAINING CONNECTION STATUS

Range: 0 to 5
Range: 0 to 4
Range: 0 to 2
Range: 0 to 2
Range: 0 to 4

6.2.20 PARALLEL REDUNDANCY PROTOCOL (PRP)

Range: 0 to 4G, blank if PRP disabled
Range: 0 to 4G, blank if PRP disabled
Range: 0 to 4G, blank if PRP disabled
Range: 0 to 4G, blank if PRP disabled
Range: 0 to 4G, blank if PRP disabled
6.2 STATUS
6
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