Operation Promag 53 PROFIBUS DP/PA
82 Endress+Hauser
5.7 Hardware PROFIBUS PA settings
5.7.1 Configuring the write protection
A jumper on the I/O board provides the means of switching hardware write protection on or
off. When the hardware write protection is switched on, it is not possible to write to the
device parameters via PROFIBUS (cyclic data transmission, e.g. via FieldCare).
#
Warning!
Risk of electric shock. Exposed components carry dangerous voltages. Make sure that the
power supply is switched off before you remove the cover of the electronics compartment.
1. Switch off power supply.
2. Remove the I/O board. → 148
3. Configure the hardware write protection accordingly with the aid of the jumpers (see
Figure).
4. Installation is the reverse of the removal procedure.
a0001359
Fig. 53: Switching write protection on and off with the aid of a jumper on the I/O board
1 Jumper for switching write protection on and off
1.1 Write protection switched on = it is not possible to write to the device parameters via PROFIBUS
(acyclic data transmission, e.g. via FieldCare)
1.2 Write protection switched off (factory setting) = it is possible to write to the device parameters via PROFIBUS
(acyclic data transmission, e.g. via FieldCare).
2 Jumper without function
LED Overview of LED states:
– Lit continuously
Ready for operation
– Not lit
Not ready for operation
– Flashing
System or process error present → 130
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