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8
Operation
8.1
EtherCAT integration
The SIG350 can exchange process data and parameters via EtherCAT. For this purpose,
the IO-Link Master must be connected to a suitable programmable logic controller
(PLC). The IO-Link Master is mapped as a modular device in the project planning
software. The data modules of the inputs/outputs, the IO-Link ports, and any additional
modules are presented in the project planning software on the basis of slots. Slots that
are not in use can be left empty.
8.1.1
Project planning in Twin CAT
The configuration and system integration are described using an example in which the
IO-Link Master is connected to a Beckhoff TwinCAT controller with the “TwinCAT® Sys‐
tem Manager (Version 3)”. When using other controllers and project planning software,
refer to the relevant documentation.
8.1.1.1
Adding SIG350 to the project
8.1.1.2
Slot configuration
The ports are configured by selecting the corresponding slot module. The slot selection
basically determines the configuration of pin 4. The behavior of pin 2 is configured via
the corresponding CoE object, see REF.
8.1.1.2.1
IO-Link port
The IO-Link module slot is selected based on the process data length of the connected
IO-Link device to be transmitted or received, whereby there are various combinations
with input and output process data. The following options are available for the length: 1,
2, 4, 8, 16, 32 bytes.
IO-Link modules are structured according to the following schema:
Description
IOL_x/y_I/O bytes
The number of pieces of process data
used for the IO-Link module.
The number should be greater than or
equal to the length of the process data of
the IO-Link module.
x: Input data length in bytes
y: Output data length in bytes
Digital IN
Input pin 4
Digital OUT
Output pin 4
Slot empty
If pin 4 is not used on the corresponding
slot
OPERATION
8
8027836./2022-06-10 | SICK
O P E R A T I N G I N S T R U C T I O N S | Sensor Integration Gateway - SIG350
27
Subject to change without notice