PMI-8B

binary inputs module 101 x 22,5 mm

CE

Module type PMI-8B allows to monitor 8 binary
voltage inputs via the RS-485 connection. It finds
application in distributed control and visualization
systems. Standard Modbus protocol transmission
functions make device registers (address, state
of inputs, device ID). All PMI-8B operating
functions, available via the RS-485, can be
implemented with any typical visualization
software or, for instance,  with a suitably PAC-99X
controller. Registers state actualisation occurs
only if input signal have fulfil some time
restrictions. These restrictions depend on settings
of internal digital filter implemented in firmware.
Filter allows to eliminate signal oscillations
corresponding to contacts bouncing (of
mechanical sensors). Filter is factory switched off.

  • binary inputs module
  • 8 independent voltage inputs
  • LEDs for module operation and Modbus transmission signalling
  • interface RS-485/Modbus RTU

- galvanic separation of the digital inputs from the module supply voltages,
- internal digital filter,
- signalling of inputs logic status and RS-485,
- signalling MODBUS correct operation and transmission,
- input signals connected by means of the socket-plug connectors.