Denkovi smartDEN IP-Maxi User Manual page 44

Web enabled ip controller
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Inputs/Counters 1, 2 and 3
These counters are implemented in software but not in hardware. Due to this
there are some considerations which must be taken in mind when working
with them:
 When the Filter is disabled (set to 0) and no requests are sent to the
controller (no HTTP, SNMP, logged out from web server) but just
counting pulses, it is possible to achieve frequency about 10 Hz or this is
50 ms On and 50 ms Off. This is the recommend state for counting
pulses;
 When the Filter is disabled (set to 0) but there is active web session and
the monitoring page is opened, then it is possible to count pulses with
frequency about 1 Hz or this is 500 ms On and 500 ms Off;
 When the Filter is enabled the actual frequency depends also on the filter
constant.
 At the moment the module is saving the configuration in the EEPROM
some count pulses may be missed due to the blocking time which may be
several seconds.
Inputs/Counters 4, 5, 6 and 7
 When the Filter is disabled (set to 0) it is possible to count pulses with
frequency up to 50 Hz. Note that it is not appropriate at high frequencies
to configure these inputs to send traps or to control Relays.
 When the Filter is enabled, these inputs work in the same mode as
Inputs/Counters 1, 2 and 3.
Input/Counter 8
 When the Filter is disabled (set to 0) Digital Input 8 works with frequency
up to 1 KHz. In this mode the Counter is incremented on the rising edge
regardless of SNMP Trap Value. Note that it is not appropriate at high
frequencies to configure this input to send traps or to control Relays.
 When the Filter is enabled, Digital Input 8 works in the same mode as
Inputs/Counters 1, 2 and 3.
®
smartDEN IP-Maxi User Manual
09 Mar 2018
- 44 -

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