Siemens SIMATIC ET 200AL - 2 xCount Control Interface Explanations; Control Interface Bit Explanations

Counting
4.1 Configuration method 2xCount
Digital input/Digital output module DIQ 16x24VDC/0.5A 8xM12 (6ES7143-5AH00-0BA0)
44 Manual, 03/2019, A5E38688112-AC
Note
Parameter assignment of the channels
The corresponding values in the output
data do not trigger any reaction for all the channels
that are used as an input.
You cannot control the count outputs via the us
er program.
4.1.2.4 Explanations on the control interface
Table 4- 10 Explanations on the control bits
Control bit
Explanations
SLOT You specify the load value for the respective counter in these bytes. Through the load request
LD_SLOT you load the predefined value into the counter.
LD_SLOT With this load request you control for which value of the counter the value specified in SLOT
is to be loaded.
The counter carries out the respective action as soon as LD_SLOT changes.
If you have entered the load request LD_SLOT = 011
B
open the SW gate, every counting
process begins with the value defined in the SLOT as the start value.
If you have entered a different load request and open the SW gate, counting is continued with
the current count value at every start of the counting process.
Both cases also apply at a parameterized HW gate as long as and until the SW gate is
closed.
SW_GATE With this bit you open and close the SW gate of the respective counter.
Together with the hardware gate the software gate forms the internal gate. The module only
counts when the internal gate is open.
0 means: Software gate closed
1 means: Software gate open
RES_EVENT_UFLW With this bit you trigger the resetting of the stored event in the feedback bit EVENT_UFLW for
the respective counter.
RES_EVENT_OFLW With this bit you trigger the resetting of the stored event in the feedback bit EVENT_OFLW for
the respective counter.
RES_EVENT_CMP With this bit you trigger the resetting of the stored event in the feedback bit EVENT_CMP for
the respective counter.