10 Operation; Safety Instructions; Hardware Settings; Devices With Hart® From Hw-Rev. 2.00 (Corresponds To Sw-Rev. 3.00 And Higher) - ABB TTH300 Operating Instruction

32 TTH300 HEAD-MOUNT TEMPERATURE TRANSMITTER | OI/TTH300-EN REV. G

10 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

Devices with HART® from HW-Rev. 2.00 (corresponds to
SW-Rev. 3.00 and higher)
HART devices from HW-Rev. 2.00 do not have DIP switches. The
desired HART profile (HART 7 or HART 5) and the write
protection is set via the operating buttons of the LCD display
(optional), tools or HART commands.
Note
Factory setting, unless explicitly ordered otherwise:
• HART 7
• Write protection OFF
Devices with PROFIBUS PA®, FOUNDATION Fieldbus® and
HART® to HW-Rev. 1.07
a DIP switch 1
Figure 22: DIP switch on the transmitter (not for HART devices from HW-Rev. 2.00)
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.
b DIP switch 2
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 (not for HART devices from HW-Rev. 2.00)
• 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.