Devices and sensors

SDIG2-OW-16 Discrete inputs module, 16 ports

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The Discrete Inputs Module SDIG2-OW-16 allows you to expand the number of ports of the type «dry contact» to be used both in the scheme of automation or monitoring. The controllers «Impulse 112» are capable of using the digital input modules for connecting normally closed or normally open contacts. When deploying the modules SDIG2-OW-16 in automation or monitoring scenarios the automation controllers «Impulse 112» enable you to choose the type of signal for the normal port state of the connected sensor (closed or open). The module can be used to evaluate the set performance of an external ventilation system for a further correction.


The Discrete Inputs Module SDIG2-OW-16 allows you to expand the number of ports of the type «dry contact» to be used both in the scheme of automation or monitoring. The controllers «Impulse 112» are capable of using the digital input modules for connecting normally closed or normally open contacts. When deploying the modules SDIG2-OW-16 in automation or monitoring scenarios the automation controllers «Impulse 112» enable you to choose the type of signal for the normal port state of the connected sensor (closed or open).

The controllers carry out constant acquisition of port states for discrete inputs, therefore, the information about the "drawdown" for a dry contact on the port of the sensor is known to the controller almost instantly.

The module supports the following modes:

1) Count the number of pulses received on a «dry contact» port since the last values acquisition by the controller;

2) Calculation of the total number of seconds during which the «dry contacts» were clamped (eg , counting the overall duration when the fans were on - for a group of fans). The mode is supported for 10 ports (from 7-th to 16-th). When you activate the mode , counting is performed when the first «dry contact» port of the module is clamped until all ports from 7 to 16 are unpressed. In this mode, ports 2 through 6 continue performing in standard mode, and the module ports from 7 to 16 do not get advertised to the controller (which results in that the controller stops «seeing» them), also one virtual port is added that shows the result of calculation;

3) Count the number of seconds during which each contact from 7 to 16 were clamped within the specified time range. The result is given separately for each port, but the ports from 7 to 16 in this mode are «seen» by the controller as measurement ports not «dry contacts». An example when this mode can be used is to calculate the duration of activity for each individual fan of a group but within a certain span of time. When the previous seconds calculation period is expired each port is starting to show the duration in seconds during which the dry contact on this port was drawn down.

Options 2 and 3 can be used to evaluate the performance of an external ventilation system.

The module communicates with the automation controller «Impulse 112» using the digital protocol 1-Wire with potential 12V. Consistency of the data transmitted between the module and the controller is checked using the algorithm CRC (cyclic redundancy check). The SDIG2-OW-16 module's logical unit is electrically unbound from both the transmission bus to the controller and from the dry contacts.

All the ports of the sensor are automatically identified by the controller and can be quickly configured. For each port, this module has registers that allow you to configure the algorithm how the module changes port statuses for dry contacts - whether it will change the port status immediately on the dry contact state change or will not change the status on the port till the controller reads the previous status. Setting this register will enable the controller to notice and to react to even the quickest state change events on the port module's digital inputs.

CONTACTS

  • Our Address: Ukraine, Kyiv 02660
    str. Chervonotkatska 94
  • Email: office@xcs.com.ua
  • Web-site: impulse112.com
    xcs.com.ua
  • Phone number: +38 044 451 87 42