Schematic Internal Wiring Diagram; Operation Of The Module On Safetybus P - Pilz PSS Series Operating Manual

PSS SB DI8O8

Schematic internal wiring diagram

The diagram on page 12 shows a schematic internal wiring diagram of the
PSS SB DI8O8, showing the different output types, two shutdown routes
and galvanic isolation from SafetyBUS p, etc.

Operation of the module on SafetyBUS p

The connection to SafetyBUS p is made via a male 9-pin D-Sub
connector. Fibre-optic couplers from Pilz (like PSS SB SUB-D F0) can be
connected to the SafetyBUS p interface.
To enable the module to operate on SafetyBUS p, it must be given the
device address set via the configurator in the system software. Device
addresses 32
conjunction with a Pilz PSS.
The configurator in the system software is also used to establish which I/O
groups the device belongs to.
The module can be divided into Section A and Section B. Section A and
Section B may belong to different I/O-Groups. The module itself can either
have Section A alone, or both Section A and Section B.
Outputs always belong to Section A. In the system software you can
configure a limit value to determine which section inputs will belong to:
those with a number below this limit will belong to Section A, those with a
higher number will belong to Section B.
The I/O addresses which the PSS master uses to address the I/Os are
established according to their membership of Section A or B and the
device address.
Under the device address in the process I/O image of the PSS master,
I/Os from Section A are addressed as device address and bit number 0 ...
7. Inputs from Section B are addressed under the device address as slot
number and bit number 16 ... 23. For example, if input I
reconfigured to Section B, the address will change from x.6 to x.22. The
offset for Section B is 16.
Example: Device address is 36, inputs I
inputs I
Formula for calculating Section B addresses:
Address of I
10
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... 95 are permitted if you are using the device in
dec dec
to I belong to Section B.
5 7
= Device address
x
to I belong to Section A,
0 4
.
[(Input number I ) + (Offset 16)]
x
from Section A is
6
Operating Manual