Pilz 19 964-12 - Schematic Internal Wiring Diagram; Operation of the Module on Safetybus P

PSS SB DI8O8
10 Operating Manual
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
dec
... 95
dec
are permitted if you are using the device in
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
6
from Section A is
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
0
to I
4
belong to Section A,
inputs I
5
to I
7
belong to Section B.
Formula for calculating Section B addresses:
Address of I
x
= Device address . [(Input number I
x
) + (Offset 16)]