Yokogawa EJA115 Bedienungsanleitung Seite 25

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Seitenansicht 24
IM 01C22T01-01E
2-18
2. HART COMMUNICATOR OPERATION
(19) Software Write Protect
EJA configured data is saved by the write protect
function. Write protect status is set to YES when 8
alphanumerics are entered in the New password
field and transferred to the transmitter. In write protect
YES status, the transmitter does not accept parameter
changes. When the 8 alphanumeric string entered in the
New password field is also entered in the Enable
write field and transferred to the transmitter, it will be
possible to change transmitter parameters during a 10
minute period.
To change the transmitter from Write protect YES
status back to Write protect NO status, enter 8 spaces
in the New password field after Write protect has been
released using enable write.
(a) Setting Password
F0238.EPS
(ENTER)
EJA:
Hot key
1 keypad input
2 Enable Write
3 New password
HELP SEND ESC ENTER
Press Hot key.
Select the New password.
Set 1 2 3 4 1 2 3 4 and press
ENTER (F4).
EJA:
Enter New Password
********
********
HELP DEL ABORT ENTER
(ENTER)
Press ENTER (F4).
EJA:
Re-Enter New
Password
12341234
12341234
HELP DEL ABORT ENTER
(OK)
Press OK (F4).
Write Protect status changes from
NO to YES.
EJA:
Set New Password OK
HELP DEL ABORT OK
(OK)
Press OK (F4).
EJA:
Method Aborted
HELP DEL ABORT OK
Example: Set the password to 1 2 3 4 1 2 3 4
(b) Changing the Password
F0239.EPS
(OK)
(ENTER)
1 2 3 4 1 2 3 4
EJA:
Input password
********
********
HELP DEL ABORT ENTER
Press Hot key and call up Enable
Write.
Enter the password and press
ENTER (F4).
Press OK (F4).
Write protect status is released for
10 minutes.
EJA:
Write enable in 10
minutes
HELP DEL ABORT OK
(OK)
Press ENTER (F4).
EJA:
Method Aborted
HELP DEL ABORT OK
Select the New password.
EJA:
Hot key
1 keypad input
2 Enable write
3 New password
HELP DEL ABPRT OK
Set 6 7 8 9 A B C D.
EJA:
Enter New Password
********
********
HELP DEL ABORT ENTER
Example: To change the password from 1 2 3 4 1 2 3 4
to 6 7 8 9 A B C D
(ENTER)
6 7 8 9 A B C D
(OK)
Press ENTER (F4).
EJA:
Re-Enter New
Password
6789ABCD
6789ABCD
HELP DEL ABORT ENTER
(OK)
EJA:
Set New Password OK
HELP DEL ABORT OK
(OK)
Press OK (F4).
EJA:
Method Aborted
HELP DEL ABORT OK
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