Iskra MT 511 User Manual page 15

CONNECTION
User's Manual
Connection of input/output modules 
WARNING!
Check the module features that are specified on the label, before connecting module contacts.
Wrong connection can cause damage or destruction of module and/or device.
Connect module contacts as specified on the label. Examples of labels are given below and describe
modules built in the device. Information on electrical properties of modules is given in chapter Modules.
Alarm (relay) module. (Example of alarm module as I/O
module 1)
Pulse output (solid state) module for energy counters.
(Example of pulse module as I/O module 1)
Analogue output module with analogue output,
proportional to measured quantities. The outputs may be
either short or open-circuited. They are electrically
insulated from each other and from all other circuits.
(Example of analogue output module as I/O module 1)
Digital input module enables reception of impulse signal.
(Example of digital module as I/O module 1)
Watchdog output (relay) module enables proper
instrument operation supervision. (Example of Watchdog
output module as I/O module 1)
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