Sm 1278 4Xio-Link Master Overview - Siemens SIMATIC S7-1200 System Manual
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Also See for SIMATIC S7-1200:
- Function manual (527 pages) ,
- Manual (364 pages) ,
- System manual (338 pages)
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Technical specifications
A.12 Technology modules
A.12.1.1
SM 1278 4xIO-Link Master overview
The SM 1278 4xIO-Link Master is a 4-port module that functions as both a signal module
and a communication module. Each port can operate in the IO-Link mode, single 24 V DC
digital input or 24 V DC digital output.
The IO-Link master programs acyclic communication with an IO-Link device using the
IOL_CALL function block (FB) in your STEP 7 S7-1200 controller program. The IOL_CALL
FB indicates the IO-Link master your program uses, and which ports the master uses for
data exchange.
Visit the Siemens Industry Online Support website (http://support.industry.siemens.com) for
details on working with the IOL_CALL FB. Enter "IO-Link" in the website's search box to
access information about IO-Link products and their use.
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S7-1200 Programmable controller
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