TTH300 HEAD-MOUNT TEMPERATURE TRANSMITTER  |  OI/TTH300-EN REV. E  31 
 
 
 
 
Basic Setup 
 
Note 
Transmitter communication and configuration via HART, 
PROFIBUS PA, and FOUNDATION Fieldbus H1 are described in 
separate documentation (‘Interface description’). 
 
The following configuration types are available for the 
transmitter: 
• With DTM: 
  Configuration can be performed within an FDT frame 
application that is approved for use with the DTM. 
• With EDD: 
  Configuration can be performed within an EDD frame 
application that is approved for use with the EDD. 
•  With FDI-Package (FIM): 
  Configuration is possible within an FDI frame applications 
(Field Information Manager / FIM) for which the FDI 
packages are released. 
•  With LCD indicator Type A with operating buttons 
  Commissioning via the LCD indicator does not require any 
tools to be connected to the device and is therefore the 
simplest way of configuring the TTH300. 
  The general operation and menus of the LCD indicator are 
described in Menu navigation on page 32. 
 
Note 
Unlike configuration using the DTM, EDD or FDI-Package (FIM) 
the functionality of the transmitter can only be changed to a 
limited extent with the LCD indicator. 
 
 
 
11 Operation 
Safety instructions 
 
If there is a chance that safe operation is no longer possible, 
take the device out of operation and secure it against 
unintended startup. 
 
 
Hardware settings 
 
A10256
12
On
12
 
a  DIP switch 1    b  DIP switch 2 
Figure 23:  DIP switch on the transmitter 
 
 
The transmitter has two DIP switches that can be accessed via a 
hinged cover. 
•  Switch 1 activates the hardware write protection. 
•  Switch 2 supports the FOUNDATION Fieldbus 
requirement for a hardware enable for simulation in 
accordance with ITK. 
 
For transmitters that support HART 7, switch 2 allows the 
desired HART version to be set (HART 5 or HART 7). 
 
DIP switch  Function 
1  Local write protection 
Off: Local write protection deactivated 
On: Local write protection activated 
2  Enabling the simulation (only with FOUNDATION Fieldbus) 
Off: Simulation blocked 
On: Simulation enabled 
Selecting the HART version (only with HART protocol) 
Off: HART 5 
On: HART 7 
 
Note 
•  Factory settings: Both switches ‘OFF’. Local write protection 
deactivated and HART 5, unless explicitly ordered HART 7 
(HART version) or simulation locked (FOUNDATION Fieldbus). 
•  With PROFIBUS PA devices, Switch 2 must always be in the 
‘OFF’ position.