Locking The Device; Enable Write Protection With Jumper - Siemens SITRANS P Operating Instructions Manual

Operating

7.4 Locking the device

7.4 Locking the device
The following options are available to lock the device:
● Enabling write protection using the jumper. (Page 82)
● Enabling write protection using the user PIN. (Page 138)
● Enabling write protection using the button lock. (Page 134)
Write protection
Jumper set
User PIN enabled
1)
Button lock enabled
The user PIN is factory set to 2457 in the device. When delivered, write protection is disabled
1)
using the user PIN.
Devices with functional safety
To enable functional safety, you first enable the user PIN.
7.4.1

Enable write protection with jumper

The jumper is used for enabling write protection.
When write protection is enabled with the jumper:
● Measured values are read-only.
● The display changes automatically between the measured values.
● Operation via the buttons is disabled.
Procedure
1. De-energize the device.
2. Use a 3 mm Allen key to loosen the front safety catch.
3. Remove the front cover connector of the device.
82
Sym‐ ID Read measured values on
bol the display
L Yes
LP Yes
LL Yes
Read parameters on the
display
No
Yes
No
SITRANS P320/P420 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E44852162-AC
Change parameters
via the device with dis‐
play
No
Yes, after input of the
user PIN
No