4-34 “Job Done” Examples - (Example 3) Date Code 20010518
SEL-2020 Instruction Manual
VERIFY AND TEST ALL COMMUNICATION PATHS
1. Verify that the SEL-2020 is requesting meter data from each relay every second and
receiving meter data in response to that request.
• Visually check the front panel Light Emitting Diodes (LEDs); the green transmit
(TXD) LEDs should illuminate once every second on Ports 1 through 7 to indicate that
the SEL-2020 is sending a message to the relay at that rate; the red receive (RXD)
LEDs should illuminate at the same rate, but with a slight delay following illumination
of the green LED. This indicates that the SEL relay is responding to the message sent
by the SEL-2020.
• Use the STATUS command to see how each port is operating:
Success Rate column should show 100% for each port. If not, the SEL-2020 is getting
unexpected responses. Database Delays should not show any region labels (e.g., D2,
A1). Each designator shows a request for data with a previous request pending. Some
reasons for database delays are given in the STATUS Command subsection of
Section 5: Commands.
You should see a screen similar to the following:
*>>STATUS<ENTER>
STATUS<ENTER>STATUS<ENTER>
STATUS<ENTER>
COMMUNICATIONS PROCESSOR - S/N 95012004 Date: 03/06/95 Time: 13:46:43
FID=SEL-2020-R100-V0-D950324
SELF-TESTS
RAM ROM EEPROM FLASH P.S. SET BATTERY
512 kb OK OK 2048 kb OK OK OK
IRIG-B Input: Present
I/O Board: Installed
Modem: Installed
Port Status Success Rate SET M Database Delays
1 Active 100% None
2 Active 100% None
3 Active 100% None
4 Active 100% None
5 Active 100% None
6 Active 100% None
7 Active 100% None
8 Active None
9 Active None
10 Inactive None
11 Active None
12 Inactive None
13 Inactive None
14 Inactive None
15 Inactive None
16 InActive None
F Active 100% None
*>>
• Use the MAP 1 command to view the Port 1 database. B METER indicates binary or
Fast Meter data collection. A METER would indicate ASCII or conventional meter
data collection.
To Next Page
Loading...