Siemens eWON4002 manual Digital Outputs, Open collector Digital Output

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eWON4002™

Installation Guide

ver 2 . 04

5.6 Digital Outputs

There are 3 Digital Outputs: 1 open collector and 2 relays.

5.6.1 Open collector Digital Output

The open collector output is located on the Input/Output connector, which stands beside the power supply connector.

Specification

Value

 

 

Type of output

Open collector

 

 

Max current (external source)

200mA @ 30 VDC

 

 

Isolation

3,5 kV

 

 

Pinout connector

See label and appendix (Input/Outputs on page 28)

 

 

Table 15: Open collector Digital Output specification

This Digital Output is activated by an open collector transistor driven by an optocoupler. The maximum current flow into this transistor has a characteristic above the value specified in the eWON®, in order to cope with the switching power losses. The transistor used is of open collector type with pre drive. This means the relay power supply has to be supplied from an external source to the pre drive electronics.

The diagram below shows the external wiring needed for correct operation of the Digital Output. A relay has been chosen for this sample application but any load within the specifications can be used instead.

Warning: note that this is a sink only output to ground (the transistor acts like a switch to ground).

Figure 11: Digital output: wiring diagram

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Contents Installation Guide EWON4002 Installation Guide Table Of Contents IP parameters configuration Technical support General specification of the hardware platform Product descriptionIntroduction Ethernet GatewayRAS Modem & PIR DataloggerTypical applications Part Numbers and internal optionsExternal accessories Cc= CommunicationXy = Options Type/Description Part NumberLevel Title Contents Structure of the eWON technical documentationHousing and markings HousingRequired power supply MarkingsApplicable directives, standards and compliance Serial numberEquipment information and versions Mechanical outlineMounting and environmental conditions Spring Bottom SliderPreparing the installation Specifications for external power supply selectionSpecification Value Auto fuseFront panel control LEDs Communication interfaces and I/Os Embedded Pstn ModemEmbedded GSM/GPRS Modem Ethernet PortRecommendations for the GSM/GPRS antenna SIM-card insertionSerial port #1 Serial port Dip switchSerial ports Positions Mode Serial port #2Serial port 3 connector and dip switch Serial port #3Digital Inputs Digital Outputs Open collector Digital OutputRelays Configurable standard Analog Inputs AI1 AI4Analog Inputs Resistive Temperature Detector Inputs Communicating with the eWON By EthernetBy phone line or GSM Under Windows 98, NTUnder Windows XP IP parameters configuration EWONCFG utility and IP parameter windowResets User ResetFactory Reset Technical supportAppendix Pinouts and connections Power Supply Power supply ConnectorEthernet Connector EthernetDirect connection Crossed CableConnection over hub/router Hub/Router Straight CableRJ45 connector RJ 45 connector/cabling1 DI / do connector Digital Input/Output ConnectorDigital Input/Output mating female connector included Digital Input/Output connector pinout Pin DescriptionAnalog Input Connector Analog Input mating female connector includedAnalog Input connector pinout Pin Description Analog InputRelay Connector Relays Output mating female connector includedRelays output connector pinout Pin Description Relays outputDigital input Top faceBack face Front Face Digital InputSerial ports connectors Female DB9 with 4/40 blocking screws Pinout serial ports 1 and 3 according to mode Pinout serial portPin RS232 RS485 RS422 Pin RS232MiniDIN PIN Schneider Signal EWON Signal Name EWON SUBDB9 ConnectorUnitelway/Modbus serial cable DA is connected to B- and DB is connected to A+Pstn phone line mating male connector not included Pstn phone line connectorPstn phone line Connector