GE LPS-O - ASCII Command List

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LPS-O Line Protection Relay GE Power Management
12.1 INTRODUCTION 12 ASCII COMMUNICATIONS
12
Communication using the ASCII protocol presents oscillography data as directly readable ASCII characters.
Oscillography data may contain 12 to 72 power cycles of data. Each power cycle contains 64 samples of data.
The data structure of a sample is as shown in Table 12–2: OSCILLOGRAPHY DATA STRUCTURE. Each sam-
ple appears on a separate line.
Table 12–2: OSCILLOGRAPHY DATA STRUCTURE
Item Data Format
(ASCII characters)
Description
Sample No decimal integer Sample number within the cycle
Ia signed decimal (resolution of 0.01 units) Inst. current in Phase A
Ib signed decimal Inst. current in Phase B
Ic signed decimal Inst. current in Phase C
Va signed decimal (resolution of 0.1 units) Inst. voltage in Phase A
Vb signed decimal Inst. voltage in Phase B
Vc signed decimal Inst. voltage in Phase C
Digital Flags Eight 4 byte hexadecimal integers The 252 digital flags represent system
status
Table 12–3: ASCII COMMAND LIST
(Sheet 1 of 7)
ASCII
Command
Mnemonic
Command Description Lowest
Level
Password
Needed
Relay Prompt User Response
LOGIN Login to the relay NONE Unit ID?
Password?
Reports the access level granted
or
that the
password entered is INVALID
Relay ID
number; up to 10
character
password
QUIT Logs out from the relay,
displays the relay status,
and returns the privilege
level to VIEW for the relay
port used.
VIEW Press ENTER to continue
Do you want to logout?
You have logged out from the relay
Press the enter
key; Y or N
PASSword Change the passwords
used by LPSO-Link and
ASCII; MMI passwords are
not affected by this
command
Level equal
to the
password
being
changed
Enter Current Password
Enter New Password
Re-enter New Password
Password changed
or
INVALID; password not
changed
old password;
new password;
new password