LM 32/0 Master/Slave

digital Input modules for DIN rail mounting

Data sheet as PDF
Downloads for LM

Type designation:

LM 32/0-M (Master)
module for DIN rail mounting with
32 inputs, internal supplied
max. 6 slave modules
can be connected

LM 32/0-S (Slave)
module for DIN rail mounting with
32 inputs, internal supplied

System features:

  • Snap-on housing for DIN rail mounting 195 x 128 x 45mm high
  • Degree of protection IP20
  • Connection:
    - supply screw-type terminals/ plug connection 2,5mm²,
    - inputs screw-type terminals/ plug connection 1,5mm²,
    - Lon-bus RJ45
    - Internal Bus, Master-Slave, Slave-Slave RJ12
  • Supply voltage: 24V AC/DC 250mA ± 10%
  • 16 Inputs: internal supplied, separation voltage 2000Vrms
  • Via a plug-bus cable to a total of up to 224 inputs expandable
  • EMC-values: UNITRO-Standard in accordance with EN 61000

Connection diagram LM 32/0-M and LM 32/0-S

Technical data:

  • Type of construction
    :snap-on housing
    195 x 128 x 45mm high

  • Degree of protection:
    IP20

  • Weight:
    approx. 400g

  • Climatic conditions:
    in accordance with UNITRO-Standard

  • Connection:
    power supply:
    screw-type terminals/ plug   connection max. 2,5mm²
    inputs:
    screw-type terminals/ plug   connection max. 1,5mm²
    master/slave, slave/slave: RJ12
    LON-bus (only master): RJ45

  • Function buttons:
    reset button
    service button

  • Supply voltage:
    24V AC/DC, 250mA ± 10%

  • Max. fuse:
    4A medium slow

  • Signal voltage:
    alarm signal: supplied internally
    separation voltage: 2000Vrms
  • Minimum signal duration:
    5ms

  • LED-display:
    power LED green
    service LED yellow(only LM 32/0-M):
    flashing = device not initialized
    continuous light = error
    for every input 1x green LED

  • Neuron chip:
    3150, 10 MHz + 64kB Flash-EEPROM

  • Transmission:
    LON FTT10A two wire (twisted-pair), 
    78kbps, max. 2,7km

  • Bus connection:
    isolated transceiver, 500V disconnecting insulation voltage

  • Function:
    input module LM 32/0-M is by slave modules to a total of 224 inputs a "1x LON node" expanded
    (10-pin plug. internal bus)

    caution: a bus monitoring (heard beat) of the slave modules is not possible

  • Leakage distances and clearances:
    in accordance with UNITRO-Standard

  • EMC, immunity of interference:
    UNITRO-Standard, 
    in accordance with EN 61000

subject to change