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FM 350-1, 350-2, 450, SM338 -- Setting up and parameterizing hardware -- Initializing and parameterizing modules
How do you cyclically read out the 8 channels of the FM 350-2 counter module as quickly as possible?
How can the counter values of compact CPUs and of the FM 350/FM450 counter module be made available again after a power failure?
How do you commission the FM350-2 counter module (6ES7350-2AH01-0AE0) in STEP 7 Professional V11 and higher?
How do you commission the FM350-1 counter module (6ES7350-1AH03-0AB0) in STEP 7 Professional V11 and higher?
Why with module FM350-1 does the internal gate STS_GATE remain open in single count mode although the software gate SW_GATE closes?
Which function modules (FM) can be used remotely in an ET 200M?
How do you interconnect an FM350-2 in PCS 7?
How can you retain the counter value of counter modules (6ES7350-1AH03-0AE0, 6ES7350-2AH00-0AE0, 6ES7450-1AP00-0AE0) after a STOP to RUN transition of the CPU?
How can you fast load an initial value in the counter group FM350-1 or FM450-1?
How can you generate a process alarm with the latch function on the "FM350-1" module?
Images mixed up in the FM450-1¿s configuration package for displaying the hardware gate controller 
Specifying direct I/O access to the FM 350-2, 2 channels
SM 338: how do you handle disconnected channels?
How can you fast load an initial value in the counter group FM350-1 or FM450-1?
Part number:

With some applications it is important to set a counter back to its initial value as quickly as possible when it reaches specific comparison value.
Furthermore, normally at the moment of resetting a series of calculations are made to determine the next comparison value (to optimize the point of intersection of the material).

You have the option of doing a reset also without the standard function FC CNT_CTRL.

Proceed as follows to configure the counter for fast reset:

  1. In the "Properties" dialog box of the counter module, in the "Basic parameters" area, set the option Generate interrupt to "YES" and the option Interrupt selection to "Process". In this way you generate an interrupt at the moment of resetting.

  1. In the "Outputs" parameter mask configure the digital output DQ0 so that this is activated when the comparison value is reached.

  1. In the "Inputs" parameter mask, in the field "Set counter", set the option "multiple".
    In the associated channel DB the bit DBX 27.0 or DBX 27.1 (CTRL_DQ0) must be set to 1 to enable setting in the correct direction.
  2. In "Interrupt release" parameter mask select the option "Set counter" so that the interrupt is triggered by a rising edge at the digital input SET.
  3. The digital input I2 of the block FM 350-1 / FM 450-1 is used to reset the counter to the initial value. This input is connected to the digital output Q0 (likewise to the FM 350-1 / FM 450-1).
    In the associated channel DB the data double word DBD 14 (LOAD_VAL) must be set to the initial value beforehand (e.g. L#0). The data double word DBD18 (CMP_V1) must be set to the comparison value.
    These values must be transferred with the FC CNT_CTRL to the FM by setting the relevant triggering bit once on the FC.
 Entry ID:2281824   Date:2007-12-12 
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