Pilz PSS Series User Manual

Operating Manual: PSS SB 3006-3 Series 8-7
User interface RS 485
A detailed description of the interface can be found in the “FS System
Description” and “ST System Description” in the PSS-range manual
package.
The RS 485 interface has internal termination: 120 Ohm between A and B,
270 Ohm between A and 5 V and between B and GND.
The termination on the RS 485 user interface can be switched off. To do
this, press the R
T
(USER) button on the front of the module to the OFF
position. This will enable you to build up an RS 485 network.
Button
R
T
(USER)
Status
Button operated,
ON position
Button not operated,
OFF position
Key
Terminating resistors are
connected
Terminating resistors are
disconnected
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Pilz PSS Series Specifications

General

Category	Safety Equipment
Manufacturer	Pilz
Safety Standards	EN ISO 13849-1, IEC 61508, IEC 62061
Series	PSS
Safety Integrity Level	SIL 3
Communication Interfaces	Ethernet, PROFIBUS, PROFINET
Operating Voltage	24 V DC
Operating Temperature	0°C to +55°C (typical), others depending on model
Storage Temperature	-20°C to +70°C (typical), others depending on model
Protection Class	IP20
Application	Industrial safety applications