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STEP 7 Micro/WIN -- Creating S7 programs -- Executing operations
How do you create a toggle flipflop in STEP 7 Micro/WIN?
What are S7-200 Programming Tips and where can I obtain them?
How can you realize additional logical operators (NEG, NAND, NOR, NXOR) with STEP 7 Micro/WIN?
How do you implement the modulo function in STEP 7 Micro/WIN?
In STEP 7 Micro/WIN, how can you evaluate unlimited rising and falling edges in main programs or subprogram?
Retriggering the cycle monitoring time of S7-200 devices
How can you read out the S7-200 CPU clock and output the values in integer format and how can you set the S7-200 clock with default integer values?
How do you implement the LOGO! Pulse Relay function in STEP 7 Micro/WIN?
Why is a difference detected in the "Compare real numbers for equality" operation although the floating-point numbers are equal in the status?
How can you determine the range of a value INT, DINT, REAL within two given limits?
Edge evaluation in the subprogram
How do you implement the LOGO! Pulse Relay function in STEP 7 Micro/WIN?
Part number:

This entry provides you with a STEP 7 Micro/WIN library that includes a block for a pulse relay function.

The pulse relay (block: Pulse_Relay)

Fig. 1: Pulse_Relay block
Parameter Variable type Explanation
EN [BOOL] ENABLE: enabling of the function, must always be TRUE (1)
Input [BOOL] Signal input, with a rising edge (0->1) the output is set or reset
Set [BOOL] Setting the output regardless of the current state
Reset [BOOL] Resetting the output regardless of the current state
Memory [BOOL] Temporary memory
Output [BOOL] Signal output
Table 1: Parameters of the Pulse_Relay

If there is a change of edge from 0->1 (rising edge) at the "Input" signal input, the "Output" signal output is set if it is in the Low state or reset if it is in the High state.

Fig. 2: Pulse_Relay signal diagram

The STEP 7 Micro/WIN library as archive file
Copy the "logo_functions.exe" file into a separate directory and then start the file with a double-click. The STEP 7 Micro/WIN library is unpacked. You can then integrate the library, which can be used in version V3.2.4.27 and higher of STEP 7 Micro/WIN, into your S7-200 project.


  • Information about inserting libraries in STEP 7 Micro/WIN is available in Entry ID: 16689345.

logo_functions.exe ( 29 KB )  

 Entry ID:19141713   Date:2012-05-21 
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