Lenze I/O system 1000 System Manual - Manual (Page 200)

Product description
I/O compound modules − counter
One counter 32 bits, 5 V DC − EPM−S602
3
l
200 EDSIO1000 EN 7.0
Gate function
The counter is controlled via the "internal gate" (I−gate). For this counter, the I−gate is
conform to the software gate (SW gate).
The SW gate is opened and closed via the user program (control word).
ƒ With an edge change 0−1 at the control word bit SW_GATE_SET, the SW gate opens
(counter starts).
ƒ With an edge change 0−1 at the control word bit SW_GATE_RESET, the SW gate
closes (counter stops).
The following states have an impact on the I−gate:
SW gate Response of I−gate
0 0
1 1
Edge change 0−1 1
Via the parameter setting you define whether the gate is to cancel or interrupt the
counting process.
ƒ In the case of a cancelling gate function, the counting process starts after a restart
from the loading value.
ƒ In the case of an interrupting gate function, the counting process is continued at the
current count value after a restart.
Characteristic for the gate control via SW/HW gate in the "Counting once" operating
mode: If the I−gate was closed automatically, it can only be opened by means of an edge
change 0−1 at SW_GATE_SET.