Pixsys PL260, User Manual

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activated with time basis 10 ms, 100ms and 1s. Each counting of actual
value is multiple of time base. Example a counting of 50 in a timer with time
base 10 ms is equals to 500 ms.
Preset time (PT) can be directly loaded with a value or by means of a
variable in the area VW, SMW, AI , TR.
2.2.5 Counter C
Counters are available with two operating modes:
•
MUP. In mode Count Up the counting bit (contact C) is activated when
present value (C) is >= to preset value (PV). Counter counts up every
time that the counting-up input Cx(UP) goes from Off to On and it
counts down every time that the counting-down inputs Cx(DOWN)
goes from Off to On.
The counter is reset when the reset input Cx(RESET) is activated or
when the operation MOV(Cx = #0) is executed. At reaching of max.
value (32.767), the next edge-up of the counting-up input will keep
unchanged the actual value. Similarly at reaching of minimum value (-
32.768) the next edge-up of the counting-down input will keep
unchanged the actual value.
MDOWN. In mode Count Down, the counting bit (contact C) is
activated when present value is equals to zero. The counter counts
down starting from a preset value (PV) on the edge-up of the counting-
down input Cx(DOWN) and it counts up on the edge-up of the
counting-up input Cx(UP). At reaching of max. value (32.767), the next
edge-up of the counting-up input will keep unchanged the present
value. The counter resets the counting bit (contact C) and load present
value with preset value (PV) when loading input Cx(RESET) is
activated. The counter in mode count-down stops counting when it
reaches zero. Please use number of counter to refer both to actual
value and to Contact C of the counter itself
Preset value (PV) may be directly loaded with a value or it may be loaded
by one the variables in the area VW, SMW, AI, TR.
2.2.6 Mathematical formule FM function
The function FM allows to perform math operations (+, -, *, /, |, &, ^, <<, >>)
between two operators and to save the result in another memory location.