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ES - SIMATIC Manager -- Creating programs -- CFC - Using block libraries
What are the system requirements for using SIMATIC PCS 7 Industry Library?
What should you watch out for when changing the symbolic addresses of input/output modules?
Why are the inputs of the driver block in the CFC chart no longer interconnected after replacing a HART analog module?
How do you parameterize the PCS 7 APL channel driver so that the output process value is inverted?
How do you configure a Modbus slave using the "RCV_341" (FB 121) PCS 7 block?
Why do I get the signal "QBAD" on my "CH_AI" driver block?
How do you configure the "Sample_T" input?
Why is the module INT_P issuing invalid values at the output?
Why isn’t the CH_AI block not interconnected automatically with the option "Create module driver"?
How can I change the preset message class in standard blocks?
Can blocks from the CFC library for the S7-300 CPUs also be used in a program for an S7-400 CPU?
What is the meaning of the block input VALUE_QC of the CH_DI block?
Why is the simulated value not output on the CH_AI driver block and how can a value still be simulated?
When do you speak of a "self-regulating process" and when of a "non-self-regulating process"?
How do you do perform controller optimization with the PCS 7 PID tuner?
What is the meaning of the parameters "GAIN", "TN" and "TV" with the CTRL_PID block?
Why is there only half the expected current output from each of the analog output modules in the case of redundant modules?
How much memory is used by the SIMATIC PCS 7 V6.0 library blocks and templates in the PLC?
What do I have to take into account to avoid that the actual value overshoots when switching over from hand/track operation to automatic operation of the "CTRL_PID" with activated setpoint ramp?
How can additional message texts - only as event and OS range - be edited in a block that supports messages in SIMATIC PCS 7 V5.x?
When generating the module drivers, how can you clear the message "Necessary files are missing for block CH_AI. Please note that you must install exactly that version of the library from which this block was imported"?
Why does the CH_AI driver report the slave still to be defective (QBAD=1) after failure and return of a PROFIBUS DP slave (e.g. ET 200M)?
How do you interconnect an FM350-2 in PCS 7?
How can you clear the error message "Value BITVAL is not defined in file AL_CHN.xml / CH_DI." in the module driver log?
Why is the module INT_P issuing invalid values at the output?
Part number:

Description:
Input U of module INT_P is for example connected to the output of a module DIV_R. If a division by zero occurs on module DIV_R,  the module INT_P reverts to error mode and its output issues only invalid values.

Remedy:
A division by zero is not allowed. The operator has to make sure by means of external circuits that an undefined value is written directly on the INT_P module. When a division by zero occurs, the output ENO on module DIV_R is set to ZERO.

Keywords: 
Integrate , integration

 Entry ID:13731131   Date:2010-06-21 
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