Yokogawa EJA115 - Manual (Page 26)

IM 01C22T01-01E 2-19
2. HART COMMUNICATOR OPERATION
NOTE
1. Enable Wrt 10 min releases Write Protect
status for 10 minutes. While Write Protect
status is released, enter a new password in
the New Password field.
It will not be possible to set a new password
when 10 minutes have elapsed.
2. To release Write Protect status completely,
enter 8 spaces in the New Password field
according to the instructions given in (b),
Changing the Password. This causes Write
Protect status to change from YES to NO.
F0240.EPS
(ENTER)
(ENTER)
ϫ 8
EJA:
Enter New Password
********
********
HELP DEL ABORT ENTER
* "Joker password" and "Software Seal"
When you lose the password that has been registered, it is
possible to release the mode for 10 minutes by using a
joker password. Enter "YOKOGAWA" to release Write
protect status for 10 minutes. If this joker password is
used, the status shown in the parameter "Software seal" is
changed from "Keep" to "Break." Press Hot key and select
"2. Wrt Protect menu." Current status is shown in "4.
Software seal." This status will be returned from "Break" to
"Keep" by registering a new password.
EJA:
Re-Enter New
Password
1
HELP DEL ABORT ENTER
(20) Hardware Write Protect and Burnout
Direction(with Optional code /F1)
This function prohibits parameter changes through a
slide switch on a CPU assembly board. In the case the
hardware write protection switch is set to YES, none of
the communication method including the handheld
terminal such as model 275 is allowed for the alter-
ation of parameters. The write protection switch is
factory set to NO(N position in the figure below).
HIGH LOW
CPU assembly
Slide switch
Burnout direction switch
Write protection switch
Write Protection
Switch Position
Burnout Direction
Switch Position
L H
Y N
L H
Y N
L H
Y N
L H
Y N
L H
Y N
Write Protection
Hardware write protection switch
Burnout direction switch
Burnout Direction
YES NO
F02F1.EPS
(21) H
2
O Unit Select
When mmH
2
O, inH
2
O or ftH
2
O is set, the pressure
varies with the standard temperature definition. The
Yokogawa default setting for the standard temperature
is 4°C (39.2°F). Use the procedure described below
when a standard temperature of 20°C (68°F) is re-
quired.
Call up the H
2
O Unit select .
F0241.EPS
(ENTER)
EJA:
H2O Unit select
@4C
@4C
@20C(68F)
HELP SEND ESC ENTER
Select @20C (68F) and press
ENTER (F4).
Press SEND (F2) to send data.
(SEND)
1. Device setup
4. Detailed setup
2. Signal condition
9. H2O Unit select