Sel 2414 - Access Commands (ACCESS and 2 ACCESS); Password Requirements; ASCII Commands; ANALOG Command (Test Analog Outputs)

7.6
SEL-2414 Transformer Monitor Instruction Manual Date Code 20130214
Communications
ASCII Commands
Access Commands
(ACCESS and
2ACCESS)
The ACC and 2AC commands provide entry to the multiple access levels, as
shown in Table 7.8. Different commands are available at the different access lev-
els, as shown in the SEL-2414 Transformer Monitor Command Summary at the
end of this manual. Commands ACC and 2AC are explained together because
they operate similarly. The alarm contact closes for one second upon entry of
2AC and if the incorrect password is entered three times for any access level.
Password
Requirements
After enabling the password function, you need to enter passwords to access each
access level. See PASSWORD Command (View/Change Passwords) on page 7.21
for the list of default passwords and for more information on changing and dis-
abling passwords.
ASCII Commands
The following is an alphabetical listing and discussion of all the ASCII com-
mands available in the SEL-2414.
ANALOG Command
(Test Analog Outputs)
Use the ANA command to test an analog output by temporarily assigning a value
to an analog output channel. After entering the ANA command, the device sus-
pends normal operation of the analog output channel and scales the output to a
percentage of full scale. After assigning the specified value for the specified time,
the device returns to normal operation. Entering any character (including press-
ing the space key) ends the command before reaching the specified interval com-
pletion. You can test the analog output in one of the following two modes:
➤ Fixed percentage: Outputs a fixed percentage of the signal for a
specified duration
➤ Ramp: Ramps the output from minimum to maximum of full scale
over the time specified
Table 7.8 Access Commands
Command Description Access Level
ACC Moves from Access Level 0 to Access Level 1
Moves from Access Level 2 to Access Level 1
0
2
2AC Moves from Access Level 1 to Access Level 2 1
Table 7.9 ANALOG Command
Command Description Access Level
ANA c p t Temporarily assigns a value to an analog output
channel.
2
Table 7.10 ANALOG Command Format
Parameter Description
c Parameter c is the analog channel (either the channel name, e.g., AO301, or
the channel number, e.g., 301).
p Parameter p is either percentage of full scale, or the letter R or r to indicate
ramp mode.
t Parameter t is the duration (in decimal minutes) of the test.