GE B90 User Manual

6-8 B90 LOW IMPEDANCE BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
STATUS CHAPTER 6: ACTUAL VALUES
6
These actual values represent the state of direct devices 1 through 16.
6.3.14 Remaining connection status
ACTUAL VALUES  STATUS  COMM STATUS REMAINING CONNECT
These values specify the remaining number of TCP connections still available for each protocol. The display depends on the
options applicable to your device. Each 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 protocol.
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.
For the graphical front panel, the remaining connections refer to TCP connections only.
MMS TCP — The number of IEC 61850 connections remaining.
6.3.15 Parallel Redundancy Protocol (PRP)
The Parallel Redundancy Protocol (PRP) defines a redundancy protocol for high availability in substation automation
networks.
ACTUAL VALUES  STATUS  PRP STATUS
Total Received Port A is a counter for total messages received (either from DANPs or from SANs) on Port A.
Total Received Port B is a counter for total messages received (either from DANPs or from SANs) on Port B.
Total Errors is a counter for total messages received with an error (bad port code, frame length too short).
 COMM STATUS
 REMAINING CONNECT

MMS TCP(max 5)
5
Range: 0 to 5

MODBUS TCP (max 4)
4
Range: 0 to 4

DNP TCP(max 2)
2
Range: 0 to 2

IEC-104 TCP(max 2)
2
Range: 0 to 2

SFTP (max 4)
4
Range: 0 to 4
 PRP STATUS


Total Rx Port A:
0
Range: 0 to 4G, blank if PRP disabled

Total Rx Port B:
0
Range: 0 to 4G, blank if PRP disabled

Mismatches Port A:
0
Range: 0 to 4G, blank if PRP disabled

Mismatches Port B:
0
Range: 0 to 4G, blank if PRP disabled

Total Errors:
0
Range: 0 to 4G, blank if PRP disabled
The B90 is provided with optional PRP capability. This feature is specified as a software option at the time of
ordering. See the Order Codes section in chapter 2 for details.

GE B90 Specifications

General

Brand	GE
Model	B90
Category	Relays
Language	English