Specifications
AS-Interface slaves
I/O modules for operation in the field, high degree of protection
Digital I/O modules, IP67 - Introduction
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Siemens IK PI · 2012
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Overview
K60
K45
K20
Three coordinated series of AS-Interface compact modules with
digital and analog compact modules and a high degree of pro-
tection are available for operation in the field:
• Series K60 (digital and analog)
• Series K45 (digital)
• Series K20 (digital)
All compact modules are characterized by particularly simple
handling. The K60 and K45 modules are mounted with a mount-
ing plate. The mounting plate is used to receive the AS-Interface
flat cables and enables mounting on a wall or standard mounting
rail.
The K20 modules are directly mounted without a mounting plate
and connected to the AS-Interface using a round cable.
Connection types
For flexible connection of different sensors and actuators, the
following PIN assignments are available on the I/O modules with
M12 sockets:
Standard assignment
With the standard assignment, one sensor/actuator is connected
per M12 socket. In this case the signal for the outputs is at PIN4
while the signal for the inputs is detected at PIN4 and PIN2. As
the result, sensors can be connected directly to PIN2 and PIN4.
Y assignment
With the Y assignment, two sensors or two actuators can be con-
nected to one M12 socket. In this case, both PIN4 and PIN2 are
provided for respectively one sensor/actuator signal on each
M12 socket.
Y-II assignment
The Y-II assignment offers the following options:
• Individual connection of a sensor/actuator to one M12 socket
• Connection of respectively two sensors/actuators to one M12
socket as follows:
- The signal of the first sensor/actuator is connected to PIN4 of
the first socket.
- The signal of the second sensor/actuator is connected to
PIN2 of the first socket and to PIN4 of the second socket.
In this case, the second socket is not required and is closed
with a sealing cap.
Overview of digital compact modules
The following table provides an overview of the important fea-
tures of the digital compact modules.
.
✓ Available
-- Not available
Version K60 K45 K20
8 inputs/2 outputs
✓ -- --
8 inputs
✓ -- --
4 inputs/4 outputs
✓ ✓ ✓
4 inputs/3 outputs
✓ -- --
4 inputs/2 outputs
✓ -- --
4 inputs
✓ ✓ ✓
2 inputs/2 outputs
-- ✓ ✓
4 outputs
✓ ✓ ✓
3 outputs
-- ✓ --
AS-Interface connection
Flat cable /
round cable
Flat cable Round cable
I/O connection method
M12 M12/M8 M12/M8
Pin assignment
Standard/Y-II/Y Standard/Y Standard/Y
Degree of protection
IP65/IP67/IP68/IP69K IP65/IP67 IP65/IP67
ATEX 3D (Zone 22)
✓ -- --
Extended
address mode
✓ ✓ ✓
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