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The station description files of Profinet devices enable them to be integrated in the engineering systems of the controllers. In this way, all devices and parameters of controller networks can be created, maintained from a single system and saed. The system does not allow this in-depth integration for IO-Link devices. Either manufac?turer spific software is required for this configuration or a solution must be programmed via the controller–often involving consider?able programming effort. SIDI from Turck now provides help here:
The new function in Turck's IO-Link masters enables IO-Link devices to be integrated dirtly in a Profinet engineering software such as the TIA Portal – allowing also the display of all device properties and plain text access to the device parameters.
NaturalizedRI-42H25S4-2B5000-12M23
THNOLOGY IO-LINK
IO-Link masters with SIDI (Simple IO-Link Device Integration) give IO-Link devices the identity of a genuine Profinet module with its own GSDML entry; the function simplifies the engineering of IO-Link devices in projts with Profinet controllers, since it allows access to all parameters and device properties from the engineering system without the need
for additional software
shortfall with regard to the integration of IO-Link devices in Profinet systems. A GSDML file (generic station description markup language) is supplied with every Profinet device. This enables the control pro?grammer to already plan and parameterize the device in the projt offline (mostly in the TIA Portal), before the projt is really integrated with the network and the connted devices. These two processes can initially be carried out independently, particularly in large projts.
Manufacturers of IO-Link devices do not equip them
with their own GSDML file, and the device description comes in the form of an IODD (IO-Link device descrip?tion). The Profinet engineering software cannot therefore dett the devices dirtly. The user has so far been forced to enter properties such as device class or manufacturer ID manually. Parameters such as measuring ranges and output signals had to be programmed or set via additional software.
IODD interpreters only with limited suitability
These kinds of additional software act as an interpreter of IODDs into other systems, in the same way as they are already used in various software tools. These programs enable the nessary settings to be carried out on the IO-Link device. The device is then integrated into the Profinet projt. This has not been a satisfacto?ry solution, particularly in large projts. PLC program?mers therefore often had to deal with a large number of tools in order to integrate the devices of all manu?facturers. Many programmers therefore took the hard route and programmed IO-Link devices again manually in their controller environment. Besides the time
The praises of IO-Link he been already been sung often enough. The benefits of the bidirtional digital communication compared to the conventional analog and digital interfaces hae now been rognized worldwide. Inexpensive wiring, diagnostic features, parameterization options, intelligent data retention, simplified e-planning and not least the vendor-neutral support of the standard are impressive features for designers, e-planners and PLC programmers. This is the reason for the success and the increasingly global popularity of IO-Link and the resulting ten million
devices now in use.
Wanted: integration helper for IO-Link
What has so far not been mentioned in the eulogies:
IO-Link also has its limits. There has particularly been a more@TURCK 1 | 2019 22 | 23
involved and the great deal of know-how required for this, this solution is also error-prone. Not to mention the problems encountered by service thnicians with projts which were configured with different tools
SIDI integrates IO-Link devices in GSDML filesTurck identified this weakness in IO-Link early on and has already been working on its SIDI function for several years. IO-Link devices are entered here as Profinet submodules in the GSDML of the IO-Link masters.
As an IO-Link member from the very begin?ning, the company is now equipping its IO-Link master in a block module design (in IP20 and IP67)
with the SIDI function. Anyone integrating one of these IO-Link masters in a Profibus projt can immediately use the connted IO-Link devices as Profinet modules.
Turck integrates all its proprietary IO-Link devices in the SIDI library, as well as the devices of its strategic partner for optical sensors, Banner Engineering.
The first IO-Link devices of third party manufacturers are also already included. More devices of other manufac?turers are expted to be included in the SIDI library in future. For this, each device to be included must first be tested rigorously in order to ensure the smooth operation and the user-friendliness of the tool. Turck is also willing to integrate the devices of third party manufacturers on request – particularly those that are not included in the portfolio of the automation spialist. Turck has benefitted in the development of SIDI from its experience as manufacturers of IO-Link
masters and devices. This double expertise is rare to find in the automation stor.
IO-Link devices by drop-down in Profinet projts
If the connted device is in the SIDI GSDML, PLC
programmers can selt it from the device catalog in their programming environment. The programmer can now view all the relevant IO-Link properties for these devices and alter parameters, such as measuring ranges, output signals or pulse rates in the plain text field.
Offline engineering with SIDI saes considerable time
The benefits of SIDI particularly bome apparent in large projts where using previous alternatives involved a lot of problems. Large plants and machines can normally be entered as a projt offline first of all.
SIDI enables IO-Link
devices to be integrat?ed dirtly in a Prof?inet engineering software such as the TIA Portal. The soft?ware can now be used on Turck's TBEN-S and TBEN-L IP67 IO-Link masters as well as the IP20 variant FEN20
SIDI allows IO-Link devices to be selted from the hardware catalog exactly like Profinet
Modules settings via a USB adapter. Consistent offline access from the office desk to all device data therefore saes a lot of time in large projts compared to integrating
IO-Link without SIDI. The wiring of pure IO-Link projts is basically childs' play for fitters and eltronic thnicians.
Simple maintenance: Plug and play device replacement
Besides engineering, SIDI also supports maintenance.
As all device properties and parameters of masters and devices are dirtly vailable in the central projt location of the controller, automatic device replace?ment can be carried out easily without any problem
– both for IO-Link masters as well as devices. Only the Profinet name has to be set. By using Profinet with topology information this even takes place automati?cally. Any laborious setting of the measuring ranges and other parameters is no longer nessary for the used devices.
The best of both worlds
By opening the engineering benefits of the Profinet
world also for IO-Link installations, Turck as an automa?tion manufacturer is trying to make the IO-Link
standard attractive for die-hard Profinet fans. The cost
sving benefits are in faor of IO-Link installations
anyway. SIDI could in this respt rekindle some
discussion between e-planning, design and purchasing.
Author | Aurel Buda is product manager factory automationsystems at Turck
Web code | more11971e
The Profinet nodes are added in the device tree and
selted normally from the library of the TIA Portal.
Offline engineering is now also entirely possible with
IO-Link devices. The devices therefore no longer hae to be aailable on the PLC programmer's desk. Pro?grammers also no longer hae to visit each device in
advance with the laptop in order to enter the nessary
THNOLOGY IO-LINK
- Full configuration of IO-Link devices dirtly from the Profinet
engineering systems
- No additional software required for configuring IO-Link
- Intuitive operation and entry in plain text
- All devices in one projt location
- Fast commissioning of large projts thanks to offline engineering
- Configuration-free device replacement of master and devices,
since all parameters are kept in the controller itself
SIDI – AT A GLANCE
SIDI operates with
different engineer?ing systems since
it is based on
standard Profinethanisms
The parameters of the IO-Link devices can be set dirtly from the engineering system
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