Datasheet

PNOZmulti products
Link modules
PNOZ ml1p
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]
2015-11
249
Data exchange:
} Data is exchanged cyclically.
} After the end of a PNOZmulti cycle, each base unit sends its output data to its link mod-
ule. This output data is immediately sent to the link module on the other base unit.
} At the same time, the base unit reads the input data from the link module.
Connection of multiple base units:
Any number of base units can be connected via PNOZ ml1p link modules. Two PNOZ mI1p
are required for the connection between two base units. However, only a maximum of 4 link
modules may be connected to any one base unit.
Data transmission time:
The data transmission time t
BUS
is the time between the virtual output at base unit 1 being
set and the virtual input at base unit 2 becoming available (see Technical details [
254]).
The maximum reaction time for series connection of n base units
This is the time between the activation of a safety function at the input on one base unit and
the switching of an output on the connected base unit.
} The maximum reaction time t
SUM
includes the following times:
t
ON
: Input delay = 4 ms
t
COND
: Switch-off delay of semiconductor output = 30 ms
t
REL
: Switch-off delay of relay output = 50 ms
t
BUS
: Data transmission time between two base units = 35 ms
n: Number of connections between base units
The maximum reaction time t
SUM
for series connection of n base units
} On semiconductor outputs:
tS
UM
= t
ON
+ (n * t
BUS
) + t
COND
} On relay outputs:
t
SUM
= t
ON
+ (n * t
BUS
) + t
REL
} Input delay and switch-off delay are only included once in the reaction time. The data
transmission time between the link modules is multiplied by the number of connections.
} Please refer to the Connection examples [
253].