Siemens S7-1200 System Manual page 18

Table of contents
14.11.3 Capturing the online values of a DB to reset the start values ................................................... 797
14.11.4 Using a watch table to monitor and modify values in the CPU ................................................. 798
14.11.4.1 Using a trigger when monitoring or modifying PLC tags ..................................................... 799
14.11.4.2 Enabling outputs in STOP mode .......................................................................................... 800
14.11.5 Forcing values in the CPU ........................................................................................................ 801
14.11.5.1 Using the force table ............................................................................................................ 801
14.11.5.2 Operation of the Force function ........................................................................................... 802
14.12 Downloading in RUN mode ....................................................................................................... 803
14.12.1 Prerequisites for "Download in RUN mode" .............................................................................. 804
14.12.2 Changing your program in RUN mode ...................................................................................... 805
14.12.3 Downloading selected blocks .................................................................................................... 806
14.12.4 Downloading a single selected block with a compile error in another block ............................. 807
14.12.5 Modifying and downloading existing blocks in RUN mode ....................................................... 808
14.12.6 System reaction if the download process fails .......................................................................... 811
14.12.7 Considerations when downloading in RUN mode .................................................................... 811
14.13 Tracing and recording CPU data on trigger conditions ............................................................. 813
15 SM 1278 4xIO-Link Master ................................................................................................................... 815
15.1 SM 1278 4xIO-Link Master overview ........................................................................................ 815
15.1.1 Overview ................................................................................................................................... 815
15.1.2 IO-Link and your STEP 7 program ............................................................................................ 815
15.1.3 Properties .................................................................................................................................. 816
15.1.4 Functions ................................................................................................................................... 817
15.1.5 Replacing the SM 4xIO-Link signal module .............................................................................. 817
15.1.6 Reset module to factory settings ............................................................................................... 818
15.2 Connecting ................................................................................................................................ 819
15.2.1 Pin assignment .......................................................................................................................... 819
15.2.2 Block diagram ........................................................................................................................... 820
15.3 Parameters/address space ....................................................................................................... 821
15.3.1 Configuration ............................................................................................................................. 821
15.3.2 Parameters ................................................................................................................................ 821
15.3.3 Address space .......................................................................................................................... 822
15.3.4 Parameter data record .............................................................................................................. 822
15.4 Interrupt, error, and system alarms ........................................................................................... 824
15.4.1 Status and error display ............................................................................................................ 824
15.4.2 Diagnostic alarms ...................................................................................................................... 826
A Technical specifications ....................................................................................................................... 829
A.1 General technical specifications ............................................................................................... 829
A.2 CPU 1211C ............................................................................................................................... 837
A.2.1 General specifications and features .......................................................................................... 837
A.2.2 Timers, counters and code blocks supported by CPU 1211C .................................................. 838
A.2.3 Digital inputs and outputs .......................................................................................................... 840
A.2.4 Analog inputs ............................................................................................................................ 842
A.2.4.1 Step response of the built-in analog inputs of the CPU ............................................................ 842
A.2.4.2 Sample time for the built-in analog ports of the CPU ................................................................ 843
A.2.4.3 Measurement ranges of the analog inputs for voltage (CPUs) ................................................. 843
A.2.5 CPU 1211 wiring diagrams ....................................................................................................... 844
A.3 CPU 1212C ............................................................................................................................... 847
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S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG