Pilz PSS SB HYD, Basic license - Manual (Page 61)

5-13 Modular Block System: Hydraulic Presses
• If the error message F-20/06 (error category/error number) appears on
the CPU display, you must amend the minimum scan time appropriately.
This error message indicates that the minimum scan time has been
exceeded. The PSS must not be operated while this error message is
present. If you continue to operate the PSS despite this error message,
the monitoring times may be increased and the planned safety functions
may be adversely affected.
• Further guidelines for setting the minimum scan time are given in the
PSS operating manual (e.g. FS System Description, item no. 18645-08,
page 6-11).
SB070 and SB071 automatically enter the minimum scan time in DW1022
of the administration data blocks. In this way it is automatically available to
the MBS.
INFORMATION
Please note that the times are imprecise. The lack of precision on times is
due to the cyclical processing of the user program. It is determined by the
scan time of the respective user program.
The following is generally valid:
The greater the ratio of time value to scan time, the greater accuracy you
will have with the required times.
Global parameters
Block 6 (DW1001 ... DW1023) of the administration data blocks contains
global parameters. These are parameters that are valid for several blocks.
For details of which global parameters a standard function block uses,
please refer to the description of the individual standard function blocks.
The data words in block 6 must be initialised when the program is started
(OB120) using SB070/SB071 (INIT_MBS).
The abbreviations in brackets {... : ...} at the end of each data word
correspond to the parameters in SB071. The times that are also specified
within the brackets are empirical values, unless stated otherwise.