Datasheet

PNOZmulti Mini products
Link modules
PNOZ mml1p
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]
2015-11
568
The LEDs on the base unit and expansion modules indicate the status of the configurable
control system PNOZmulti.
The online help on the PNOZmulti Configurator contains descriptions of the operating
modes and all the functions of the control system, plus connection examples.
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 link modules. Two link modules are re-
quired for a connection between two base units. However, only a maximum of 4 link mod-
ules may be connected to any one base unit.
Data transmission time:
The t
BUS
data transmission time 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").
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:
t
SUM
= 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 under "Preparing for operation".