Specifications

AS-Interface slaves
I/O modules for operation in the field, high degree of protection
Digital I/O modules IP67 - K20
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■ Overview
Digital I/O modules IP67 – K20
The K20 compact module range rounds off the AS-Interface
compact modules with a particularly slim design and a width of
a mere 20 mm. Thanks to its extremely compact dimensions,
these modules are particularly suited for handling machine ap-
plications in the field of production engineering where modules
need to be arranged in the smallest of spaces.
Robotics is yet another application area. Instead of the AS-Inter-
face flat cable, the K20 modules are connected to AS-Interface
over a round cable with M12 cable box.
The AS-Interface bus cable and the 24 V DC auxiliary power
supply are routed in this case in a shared round cable. This en-
ables extremely compact installation.
The flexibility of the round cable means that it can also be used
on moving machine parts without any problems. The K20 mod-
ules are also ideal for such applications as their non-encapsu-
lated design makes them particularly light in weight.
In applications with tow chains, many users rely on placing the
AS-Interface bus cable in a round cable. In this case, the K20
modules support direct connection to the round cable. No flat to
round cable adapter is required.
The K20 compact module range includes standard AS-Interface
modules, as well as an ASIsafe version for the connection of fail-
safe sensors, such as EMERGENCY-STOP pushbuttons or pro-
tective door monitoring. All standard AS-Interface K20 modules
support, as far as technically possible, the expanded address
mode (A/B addresses) according to AS-Interface specification
2.1, which enables connection of 62 stations to an AS-Interface
network. The K20 module with four inputs and four outputs works
in expanded address mode according to AS-Interface specifica-
tion 3.0 which, for the first time, supports four outputs with an
A/B slave, thus enabling 248 inputs and 248 outputs in a fully
expanded AS-Interface network.
For particularly space-saving dimensions, the sensors and actu-
ators are connected over M8 plug-in connectors. Alternatively,
M12 connectors with Y assignment can be used.
■ Selection and ordering data
Version Order No.
3RK2 200-0CT30-0AA3
Digital I/O modules, IP67 – K20
Width 20 mm
Type Current carrying
capacity of
outputs
Slave type Pin assignment Connection
methods
4 inputs -- A/B Standard M8 3RK2 200-0CT30-0AA3
-- A/B Y M12 3RK2 200-0CQ30-0AA3
2 inputs/
2 outputs
1 A/B Standard M8 3RK2 400-1BT30-0AA3
1 A/B Y M12 3RK2 400-1BQ30-0AA3
4 outputs 1 A/B
(Spec. 3.0)
Standard M8 3RK2 100-1CT30-0AA3
4 inputs/
4 outputs
1 Standard Standard M8 3RK1 400-1CT30-0AA3
1 A/B
(Spec. 3.0)
Standard M8 3RK2 400-1CT30-0AA3
2 safe inputs -- Standard Y-II M12 3RK1 205-0BQ30-0AA3
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