Function description
Operating Manual PSENmlock mini, PSEN mlm 1 sa 1.1/2.1/2.2
1005802-EN-02-Draft
| 18
Y1 Y32 Y1 Y32
1. PSEN mlm
2. PSEN mlm
} Series connection for solenoid activation
S31 S41 42 32 S31 S41 32 42
1. PSEN mlm
2. PSEN mlm
} Series connection for OSSD outputs
S21
S11
12
22
S21
S11
12
22
1. PSEN mlm
2. PSEN mlm
5.7 Safety Device Diagnostics
Safety Device Diagnostics is an option that can be selected independently of the safety-re-
lated wiring.
When using Safety Device Diagnostics, up to 16 sensors (of which max. 8 PSEN mlm) can
be connected as subscribers to a fieldbus module.
The communication of the sensors with the fieldbus module is automatically built up again
with each new supply of the supply voltage. As a result, a sensor can be exchanged, e.g.
when servicing, without the need for special measures.
An exchange can be detected via the fieldbus module e.g. through the serial number.
} With Safety Device Diagnostics there are the following diagnostic options for the fieldbus
module:
– Poll information from the sensors (examples: what sensor in the series has switched,
at what point could there be an open circuit in the series connection)
– Read the sensors’ configuration parameters (examples: number of teach-in pro-
cesses remaining, switch’s serial number)
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