Configuration; Write Protection; Hardware Settings - ABB 2600T Series Operating Instruction

11 Configuration

The transmitter is delivered preconfigured according to the
information provided when placing the order. However, should
a change to the configuration be necessary (because
measuring point data has changed since the original plans
were drawn up, for example), the following options are
available:
— Local keypad for the LRV / URV setting (266Jxx only) and
zero point correction following installation
— Menu-led configuration of the transmitter with the
integrated LCD indicator
— Configuration using a handheld terminal
— Configuration using a PC / laptop with graphical user
interface (DTM)
How to use these tools to make the configuration settings is
described in the corresponding related documentation.

11.1 Write protection

The write protection prevents unauthorized users from
overwriting the configuration data. With activated write
protection the operating buttons "0% (Z)" and "100 % (S)"
have no function.
A change of parameters with the integral LCD indicator, via a
handheld terminal, or the user interface (DTM) are not possible
either.
However the configuration data can be read out via the
graphic user interface (DTM) or a comparable communication
tool. If needed the operating device can also be sealed with a
lead seal.
Write protection can be activated as follows (see also the
symbols on the plate).
1. Use a suitable screwdriver to press the switch all the way
down.
2. Turn the switch 90° clockwise.
IMPORTANT (NOTICE)
To deactivate write protection, press the switch
down slightly and then turn it counterclockwise
90°.
Fig. 29: Operating buttons, write protection turn switch
1 Zero | 2 Span | 3 Write protection switch

11.2 Hardware settings

Fig. 30: DIP switches (example, HART version)
There are six DIP switches on the secondary electronics. They
are used to make settings if an LCD display is not present.
DIP switches 1 and 2 activate REPLACE MODE for the sensor
and the secondary electronics (NEW SENSOR / NEW
ELECTRONIC).
DIP switch 3 specifies the functions of the external
pushbuttons (Z/S) PUSHBUTTON MODE). Zero corrections /
span corrections or PV offset (bias) / PV offset (bias) reset.
DIP switches 4 and 5 are use to select the alarm current
(high / low).
IMPORTANT (NOTICE)
Always disconnect the device from the power
supply before making changes to DIP switches.
The device must then be restarted in order for the
new configurations to be loaded.
266CRx, 266JRx, 266CSx, 266JSx | OI/266CXX/266JXX/HART-EN Rev. B 35
M10762