Yokogawa BT200 User Manual

Write protection

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Write Protection

Brain Communication

Field Guide

FEBRUARY 2006

The Brain EJX offers Hardware and
Software (Password) Write Protection for
all input parameters and Software Protection
for the zero-adjustment screw. These great
features allow the customer to protect the
settings in the transmitter and offer the
following features:

• Hardware Write Protection in the

form of a switch on the CPU
assembly board.

• Software Write Protection in the

form of a Password feature.

The Password feature can be

turned on & off.

Each transmitter can have a

unique password.

The Password can be any 8-digit

alphanumeric string

If you forget your password, an

override password is pre-
programmed into the transmitter.

• The Zero-adjustment screw can also

be Software protected.

Section 1.0

Hardware Write Protection


The Brain EJX transmitter has a Write
Protection (WR) switch located on the CPU
Assembly Board next to the Burn Out (BO)
switch. * (See Figure 1) When the WR
switch is in the “D” (Disabled) position; the
transmitter will not allow parameter changes
through the use of a handheld terminal or
some other communication method. When
the WR switch is in the “E” (Enable)
position, communication will be allowed.

* Refer to the exploded view of the transmitter in the
Instruction Manual (IM) for the location of the

CPU

Assembly Board within the EJX transmitter.






















Figure 1

FGP-111
Page 1 of 3

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