Endress+Hauser iTEMP TMT84 - Hardware Settings (Optional)

Operation TMT84
24 Endress+Hauser
5.4 Hardware settings (optional)
!
Note!
The display can optionally be ordered with the transmitter, or as an accessory for subsequent
mounting (see chapter 8).
ESD - Electrostatic discharge
Protect the terminals against electrostatic discharge. Failure to comply with this instruction can
result in the destruction of parts or malfunction of the electronics.
a0008326
Fig. 12: Hardware settings via DIP switches
1 Connection to head transmitter
2 DIP switches (1 - 64, SW/HW and ADDR) for configuring the device address
3 DIP switches (SIM = simulation mode (no function); WRITE LOCK = write protection; DISPL. 180° = switch (turn)
the display 180°)
To set the DIP switches, proceed as follows:
1. Open the cover of the terminal head or field housing.
2. Remove the attached display from the head transmitter.
3. Configure the DIP switch on the rear of the display accordingly.
Generally: switch to ON = function enabled, switch to OFF = function disabled.
4. Fit the display onto the head transmitter in the correct position. The head transmitter accepts
the settings within one second.
5. Secure the cover back onto the terminal head or field housing.
5.4.1 Switching write protection on/off
Write protection is switched on and off via a DIP switch on the rear of the optional attachable
display. When write protection is active, parameters cannot be modified. The current write
protection status is displayed in the HW WRITE PROTECT parameter (Physical Block). This is
shown on the display as a key symbol when a hardware lock is activated ("WRITE LOCK" to "ON").
!
Note!
The TMT84 hardware lock is switched off (HW_WRITE_PROTECTION = 0) once the display is
removed, when it is fitted, the configured value is updated at the DIP switch in the device.
5.4.2 Turning the display
The display can be turned 180° via DIP switch. The DIP switch setting is saved and displayed via a
read-only parameter (DISP_ORIENTATION) in the display transducer block. The setting is retained
when the display is removed.