Instructions

Detailed descriptions of I/O modules | Digital counter module UR20-1CNT-100-1DO
143Manual u-remote1432790000/03/02.2014
Operating principle of comparison value with pulse duration
not equal to zero
Counting value
Output:
Hysteresis = 0
Hysteresis = 3
1
2 3
4 7
5
6
Comparison
value
1 Counter value = comparison value ➝ pulse of the parametrized duration is
output, hysteresis is activated and the counting direction is stored
2 Leaving the hysteresis range against the stored counting direction ➝ pulse
with the parametrized duration is output and hysteresis-is deactivated
3 Counter value = comparison value ➝ a pulse of the parametrized pulse dura
tion is output, hysteresis is activated and the counting direction is stored
4 The hysteresis range is left without changing the counting direction ➝
hysteresis is deactivated
5 Counter value = comparison value ➝ a pulse of the parametrized pulse dura
tion is output, hysteresis is activated and the counting direction is stored
6 Counter value = comparison value and hysteresis active ➝ no pulse
7 Leaving the hysteresis range against the stored counting direction ➝ a
pulse of the parametrized duration is output and hysteresis is deactivated
Hysteresis becomes active upon reaching the comparison
condition and the output is set for the time preset in the
parameter “pulse duration”. For a counter value within the
hysteresis range, the output is not set again. The counting di-
rection is retained in the module with the activation of hyster-
esis. If the counter value leaves the hysteresis range against
the stored counting direction, the output is set again for the
parametrized pulse duration. There is no pulse output upon
leaving the hysteresis range without a change in direction.
Diagnosticsandalarm
Overview
Trigger Processalarm Diagnostic
alarm
Parametrizable
HW gate open
✓ - ✓
HW gate closed
✓ - ✓
Overow
✓ - ✓
Underow
✓ - ✓
Comparision value
✓ - ✓
End value
✓ - ✓
Latch value
✓ - ✓
Diagnostics buffer
overow
- ✓ -
Process alarm lost
- ✓ ✓
Overload at the output
- ✓ ✓
Process alarm data
In order to react to asynchronous events, there is the option
of activating process alarms. Linear program ow is inter-
rupted by the process alarm and it branches to a specic
interrupt routine depending on the master system. At this
place, it is possible to respond appropriately to the process
alarm.
ProcessalarmdataUR20-1CNT-100-1DO
Byte Bit Function
B0
X0.0 HW gate activated
X0.1 HW gate deactivated
X0.2 Overow, underow or end value reached
X0.3 Comparison value reached
X0.4 Latch value reached
X0.5 - 0.7 reserved
B1
X1.0 Status input channel 0 A (trace A)
X1.1 Status input channel 0 B (trace B)
X1.2 Status input "Latch"
X1.3 Status input "Gate"
X1.4 Status input "Reset"
X1.5 - 1.7 reserved
B2 6
16 bit time stamp 0 ... 65535µs, rotating
B3 7