Operation method of the OPC field devices and the OPC server eDOS

The eviateg OPC field devices provide (depending on the model) the following data points:

  • digital switching inputs
  • analog voltage and current inputs
  • voltage sensors (24 V main supply and rechargeable battery)
  • temperature sensors
  • counter values

Status changes on these datapoints are tagged with a time stamp and are transmitted to the OPC server eDOS either immediately or as part of a cyclic routine message via

  • ISDN
  • GSM
  • GPRS
  • LAN

The OPC servers provides the status of all datapoints of all registered field devices with their respective time stamps in a tree structure to an OPC client.

The OPC client is integrated into a software which processes the data point informationen, eg.

  • representing them graphically (visualisation)
  • taking actions within a control center
  • archiving measurement values

The OPC server eDOS supervides furthermore if all field devices connect regularly with a cyclic routine message (eg once per day).

As necessary, the control center software can change via the OPC client the values of writable data points on the OPC server, which are assigned eg. to output relais of an OPC field device. The OPC server establishes then connections over the approrpiate network to the OPC field devices and forwards commands to switch the respective outputs.

With an "OPC Relais" function it is possible to map the state of the inputs of an OPC field devices to the outputs of an assigned second field device.

 

eDOS

OPC-Server "eDOS"

  Part no.:  435000
  • eviateg Device OPC Server for connections to a few hundred eviateg OPC field devices
  • accesses via ISDN, GSM and LAN / Internet (see drawing)
  • mirror server operation supported (full redundancy, see drawing)
  • all datapoints of the field devices are represented in plain text; names can be  adjusted individually
  • supervision of cyclic routine messages of all field devices
  • no additional license fees subject to the number of data points
  • self learning system: new connected field devices need not to be registered manually before on-site installation
  • automatic data maintenance and backup
  • ISDN modem and GSM modem included in delivery
  • pre-installed server (operating system eDOS, driver) on request

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Comparison chart for OPC field devices

  IT190-OPC IT191-OPC IT70-OPC IT251GI-OPC IT251I-OPC IT35G-OPC IT35I-OPC
  IT190-OPC IT191-OPC IT70-OPC
IT251GI-OPC
IT251I-OPC		 IT35G-OPC IT35I-OPC
Power supply:              
Operating voltage 230 V AC 230 V AC 24 V DC 24 V DC 24 V DC 24 V DC 24 V DC
Max. current consumption 50 mA 50 mA 200 mA 350 mA 350 mA 80 mA 80 mA
Rechargable battery
(not included in delivery)		 intern intern extern extern extern - -
Charging circuit yes yes yes yes yes - -
Inputs:              
Digital switching inputs 6 6 4 20 20 2 2
Voltage inputs 0..10 V max.2 max.2 max. 4 - - - -
Current inputs 0..20 mA max.2 max. 2 max. 4 - - - -
Temperature inputs 1 1 2 3 3 - -
230V inputs - 1 - - - - -
Outputs:              
Relais outputs 48 V 1 1 2 6 6 1 1
Relais outputs 230 V - 1 - - - - -
Interfaces:              
USB yes yes yes yes yes - -
RS232 optional optional optional yes yes yes yes
Communication networks:              
GSM yes yes yes yes - yes yes
Assebly option LTE (4G) yes yes yes yes - in preparation -
ISDN / router with S0 interface - - - yes yes - -
               
Protection class IP65 IP65 IP20 IP20 IP20 IP20 IP20
Environmental temperature -40..+70° C -40..+70° C -20..+70° C -20..+70° C -20..+70° C -20..+70° C -20..+70° C
Humidity 0..100 % 0..100 % 0..70 % 0..70 % 0..70 % 0..70 % 0..70 %
Dimensions (L x W x H in mm) 150 x 180 x 35 150 x 180 x 35 86 x 70 x 58 86 x 155 x 58 86 x 155 x 58 94 x 35 x 76 94 x 35 x 76

 

IT190-OPC

OPC field device IT190-OPC with 230V supply, IP65 housing, 6 dig in, 2 analog in, 1 temp in and 1 re

  Part no.:  420253
  • IP65 housing 180 mm (L) x 130 mm (W) x 35 mm (H)
  • three M12 and two M16 cable fittings
  • 6 digital inputs
  • 2 analog inputs, 11 bit, +/- 0.25 %, per software switchable between 0..10 V and 0..20 mA
    (also usable as digital inputs and for the connection of water sensors)
  • 1 temperature sensor input (max. 100 m cable length)
  • 1 relais output 48 V / 1 A with changeover contact
  • operation voltage 230 V AC, 11.5 VA
  • integrated battery charging circuit, 9 V block battery (optional accessory)
  • supervision of the power supply
  • status indication with 13 multi color LEDs
  • real time clock with automatic Daylight Savice Time handling
  • communicaiton network: GSM (quadband 850/900/1800/1900 MHz), assembly option "LTE"
  • scaled analog measurement reading for usage in alert messages
  • also available as fault reporting device and as alerting device with VdS2465 protocol

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IT191-OPC

GSM OPC field device IT191-OPC with protection class IP65 and additional 230V input and 230V output

  Part no.:  420254
  • as IT190-OPC, but additional:
  • one relais output 230 V
    - switching power max. 2000 VA AC / 150 W DC
    - switching current max. 8 A 250 V AC, 5 A 30 V DC
    - switching voltage max. 250 V AC / 100 V DC
  • one 230 V switching input (coupling relais)
  • status indication with 15 multi color LEDs
  • also available as fault reporting device and as alerting device with VdS2465 protocol

 

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IT70-OPC

OPC field device IT70-OPC for DIN rail mounting with 4 digital inputs, 4 analog inputs and 2 relais outputs

  Part no.:  420210
  • DIN rail mounted device 86 mm (L) x 70 mm (W) x 58 mm (H)
  • 4 digital inputs
  • 4 analog inputs, 10 Bit, +/- 5 %, software switchable between 0..10 V and 0..20 mA
    (also usable as digital inputs and for the connection of water sensors)
  • 2 temperature sensor inputs (max. 100 m cable length)
  • 2 relais outputs with changeover contacts
  • power supply 12..24 V DC
  • current cunsumption: approx. 80 mA
  • integrated battery recharging unit
  • supervision of power supplies
  • status indication with 19 multi-colored LEDs
  • real time clock with automatic daylight saving time switching
  • communication network: GSM (Quadband 850/900/1800/1900 MHz)
  • scaled analog measurement reading for usage in alert messages
  • also available as fault reporting device and as alerting device with VdS2465 protocol

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IT251I-OPC

ISDN OPC field device IT251I-OPC for DIN rails with 20 digital switching inputs and 6 relais outputs

  Part no.:  420212
  • DIN rail housing 86 mm (L) x 156 mm (W) x 58 mm (H)
  • 20 digital inputs
  • 3 temperature sensor inputs (max. 100 m cable length)
  • 6 relais output (3 with changeover contacts)
  • power supply 12..24 V DC
  • current consumption: max. 0,18 A / 0,28 A with battery charging
  • integrated battery charging circuit
  • supervision of main power supply
  • real time clock with automatic Daylight Saving Time handling
  • communication network: ISDN or router with S0 interface
  • transmit and receive Fixed Net SMS
  • Blockade break
  • also available as fault reporting device and as alerting device with VdS2465 protocol

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IT35I-OPC

ISDN OPC field device IT35I-OPC for DIN rail mounting with 2 inputs and 1 output

  Part no.:  420220
  • DIN rail housing 94 mm (L) x 35 mm (W) x 76 mm (H)
  • 2 switching inputs
  • 1 relais output
  • power supply 12..24 V DC
  • current consumption: max.80 mA
  • real time clock with automatic Daylight Saving Time handling
  • communication network: ISDN or router with S0 interface
  • also available as fault report device and as alerting device with VdS2465 protocol

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IT35G-OPC

GSM OPC field device IT35G-OPC for DIN rail mounting with 2 inputs and 1 output

  Part no.:  420221
  • DIN rail housing 94 mm (L) x 35 mm (W) x 76 mm (H)
  • 2 switching inputs
  • 1 relais output
  • power supply: 12..24 V DC
  • current consumption: max.80 mA
  • real time clock with automatic Daylight Saving Time handling
  • communication network: GSM (Quadband 850/900/1800/1900 MHz)
  • also available as fault reporting device and as alerting device with VdS2465 protocol

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