Siemens SITRANS P DS III - Checking a Device with Add-On Pneumatic Block; Checking a Device with Add-On Remote Seal; Profisafe; Introduction

Functional safety
8.7 PROFIsafe
SITRANS P DS III with PROFIBUS PA
Operating Instructions, 06/2013, A5E00053276-07
135
8.6.1
Checking a device with add-on pneumatic block
Procedure
1. Check the connection between the transmitter and pneumatic block and between the
pneumatic block and pipelines in the plant for leaks.
2. Observe the safety information and specifications in chapter Installing / mounting
(Page 39).
3. Check the following valves for correct positioning and absence of leaks:
– Process valves
– Equalizer valve
– Vent valves
– Blowout valves or plugs
4. Observe the safety information and specifications in chapter Commissioning (Page 165).
8.6.2
Checking a device with add-on remote seal
Procedure
1. Check the connection between the transmitter and remote seal and between the remote
seal and the plant for leaks.
2. Observe the safety information and specifications in chapter Installing / mounting
(Page 39).
8.7
PROFIsafe
8.7.1
Introduction
The information in the following chapter only applies to PROFIsafe devices (ordering option -
Z C21). All other chapters refer to both device versions, PROFIBUS and PROFIsafe.
PROFIsafe enables safe communication by detecting and reporting all communication
errors. Data security is continuously monitored on the PROFIBUS in the process.