Pilz PSS SB NOT, Basic license - Manual (Page 45)

6-3 Modular Block System: Emergency Stop Circuits
Feedback loop monitoring
SB067 RFK_K4
SB067 is used in applications up to category 4. This standard function
block has no parameter to evaluate the status of I/O-Groups
(SafetyBUS p).
INFORMATION
Do not use SB067 in applications with SafetyBUS p.
In applications with SafetyBUS p, use SB065 instead.
SB065 FBL
SB065 is used in applications up to category 4. The function range of
SB065 corresponds largely to that of SB067. However, the value range for
the safety subroutine number SSNR has been expanded to 1...600 (see
Chapter 5, section entitled “Input parameter SSNR”).
Other changes compared with SB067:
• Additional input parameter to set the time for monitoring the feedback
loop individually
• Additional output parameter to drive 2 contactors
• Improved error message output
This standard function block is suitable for applications with SafetyBUS p.
It has an input parameter to evaluate the status of the I/O-Group
(SafetyBUS p), for which parameters are set on the feedback loop
contacts.
The use of SB065 is preferred in the following applications:
• Applications with SafetyBUS p
• Very extensive applications (> 200 standard function blocks) with/without
SafetyBUS p
In this case, a fast PSS-CPU (e.g. CPU 3) is also preferable.