Brochure

17
Twice the program memory and
five new function blocks
The five new function blocks pay off in practice. Thus, for
example, minimum and maximum temperature values can
be determined over the course of a day or mean values
can be formed over a defined period of time. The duration
of any process can be measured using a stopwatch. In
addition, there is an astronomical clock, which can be
used for such things as controlling outside lighting or
feeding times in animal husbandry, and an analog filter,
which helps to smooth the influence of interference
pulses on the signal profile. Last but not least, the number
of usable shift registers has been increased to four. Thus,
shift registers with up to 32 bits are now possible.
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Master/master connections
between LOGO! and LOGO!
In this mode, up to 9 basic devices can also be con-
nected to each other. However, each LOGO! processes
its own program and shares only the generally needed
information with the others. In this way, small, net-
worked systems with easy program structures can be
created. Each unit can continue to solve its subtask
without the others, if necessary.
In both cases, up to 9 basic devices and a PC/PG for
programming can be interconnected. The theoretical
degree of expansion of a LOGO! configuration is thus
88 DI, 80 DQ, 40 AI, and 18 AQ.
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Communication with SIMATIC S7
The new LOGO! basic modules can be coupled to higher-
level automation structures (e.g. SIMATIC S7 CPUs or
HMI Panels with Ethernet interface), because they can
work with the standard S7 protocol. This allows, for
example, the use of SIMATIC Touch Panels for operating
a machine controlled by LOGO!. Of course, you can also
combine these communication options as needed.
Completely new perspectives
for communication,
data handling and storage