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Device Manual AS-i IO-Link-Gateway (AC5225) Firmware V1.16
System description
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3.3
Description of the device software
User characteristics ............................................................................................................................. 13
System interface .................................................................................................................................. 13
User interface ...................................................................................................................................... 13
Software interface................................................................................................................................ 13
Communication interface ..................................................................................................................... 14
Operating states .................................................................................................................................. 14
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3.3.1
User characteristics
The presetting of the AS-i link gateway ensures operation of two sensors with two words of cyclic data
(process data) each.
The IO-Link port configuration can be changed via function blocks in a higher-level controller or a
configuration software on a service PC.
It is also possible to change the setting of the IO-Link devices via function blocks on the control level.
To do so the data are to be sent to the AS-i module via AS-i function calls. Then the AS-i IO-Link
gateway acts as a transparent transport channel*) and transfers the data to the connected device.
*) "transparent transport channel" means: The data are left unchanged over the whole communication line. Only the transfer
protocol changes between the AS-i and the IO-Link systems.
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3.3.2
System interface
The system interface is a largely transparent communication interface between the AS-i and the IO-
Link system. Transparency is restricted since the device is largely initiated automatically using default
values.
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3.3.3
User interface
The device does not feature a user interface. It is indirectly available as function calls. Settings of the
module and the connected IO-Link devices can be changed via these calls.
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3.3.4
Software interface
The device only runs on AS-I masters with master profile M4 complying with the AS-i specification
V3.0 [AD5]. To be able to use all functions the master must also support the CTT2 protocol calls for
device groups amended in revision 2.
(Overview of the specifications chapter
Approvals, standards to IO-Link
13
2017-11-20
Description of the device software
(→ page 45))
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