Monitoring Module WATCH-DOG-02

The WATCH-DOG Module is used to monitor the ISYGLT subnet. With this module short-circuits and interruptions of the BUS line or a failed Master Module can be detected. Individual modules on the subnet can also be monitored and reported.

Quick Facts

  • monitoring the BUS
  • 1 relay output 230V/10A (change-over contact)
  • 4 optocoupler inputs 12-48V
  • switch to emergency operation
  • control of emergency operating equipment
  • can also be used as I/O module

The WATCH-DOG Module is used to monitor the ISYGLT subnet. An application case is switching to an emergency operating level when errors are detected in the BUS or the Power Supply. Short-circuits and interruptions of the BUS line or a failed Master Module can be detected with the module. This module can be used to switch redundant BUS segments to a second Master Module, for example, or to control corresponding emergency operation relays in sub-distribution boxes­­­­­­ in the event of failure/emergency. The time until the output is activated when an error is detected can be adjusted via parameter setting. A test function is also available in BUS operation.

Electrical Data

Operating voltage 16-35V DC or 16-27V AC
Current consumption 24V DC = 85mA
Inputs 12-48V AC/DC, input current per input 5mA at 24V
Output relay contact 250V AC (DC max. 25V);
load capacity:
pure ohm's 10A
bulbs 10A
fluorescent lamps uncompensated 6A
fluorescent lamps compensated 4A
low voltage halogen via transformer 10A
1-phase motor 0.55kW
ECGs manufacturer dependent, inrush current 100A < 20ms
! The inrush current of electronic ballasts is up to 100 times the rated current!
Minimum contact load: 500mW, min. 10V, min. 5mA
Subnet (RS-485) max. 5.6V limitation by Z-diodes
Connection screw terminals 2.5mm², pluggable, BUS connector
Operating temperature -10...+50°C
Storage temperature -25...+70°C
Humidity 0...85 % r.h. non-condensing
Protection class in non-installed state IP30

Design, Dimensions, Weight

Design DIN rail-mounting plastic housing light grey, snap-on on 35mm DIN rail 4 HP
Dimensions WxHxD 71x90x59mm
Weight 140g

Ordering Data and Conformity

Type designation WATCH-DOG-02
Article no. 80083101
Conformity CE

Tender Documents

Instruction Manuals

Wiring Diagrams

DIP switch

8-pole DIP switch for setting the ISYGLT BUS address (0-127) is located under the cover of the module.

Special function DIP switch 1

DIP-1 Setting
OFFBUS operation
ONNo function, but adjustable by parameter

Function Indicators (LEDs on the Module)

redPowerOffNo operating voltage
OnOperating voltage, no error
yellowBUSOff / OnError BUS
blinkingInterference-free data transmission via the BUS line
4x greenBUS failureblinkingLEDs signal a BUS failure by chaser animation, LED 1 is on during­­­­­­­ BUS operation

Parameterisation with ProgramDesigner

In the ISYGLT ProgramDesigner there are various parameterisation possibilities:

  • Time detection BUS failure
  • Emergency operation
  • Security functions
  • Impulse times
  • Power-LED

Pin Assignment

9-pole plug top

=Ub Operating voltage
0V 0V Operating voltage
A BUS A (subnet RS-485)
B BUS B (subnet RS-485)
CE Common potential for E1-E4 (e.g. 0V)
E1 Input 1
E2 Input 2
E3 Input 3
E4 Input 4

2x P-COM ports

P-COM Subnet (BUS A and B) and operating voltage

8-pole plug below

C.A Output 1 root
S Output 1 NO contact
O Output 1 NC contact

Additional Equipment

  • Emergency operating equipment on request


Article no.: 80083101

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