M3100 Lightbus incremental encoder interface

M3100 | Lightbus incremental encoder interface

The M3100 module permits any incremental encoder to be connected to the Lightbus system. A 24 bit counter with a quadrature decoder and a 24 bit latch for the zero pulse can be read, set or enabled. The fibre optics connection of the Lightbus system allows the transducer values to be transmitted at high speed and without interference to a central device such as a PC, PLC or CNC within 25 µs. Up to 255 transducers can be interrogated over one Lightbus ring.



Technical data M3100
Fieldbus Lightbus
Data transfer rates 2.5 Mbaud, 32 bit of process data in 25 µs
Encoder connection A, A(inv), B, B(inv), zero, zero(inv), status
Encoder operating voltage optionally 5 V DC/15 V DC
Counter 24 bits, binary
Limit frequency 1 MHz
Quadrature decoder 1-, 2-, or 4-fold evaluation
Zero-pulse latch 24 bits
Commands read, set, enable
Supply voltage 24 V DC (-15 %/+20 %)
Current consumption 0.1 A (without sensor load current)
Housing form die-cast aluminium (IP 65) with screw fastening
Dimensions (W x H x D) 80 mm x 175 mm x 52 mm
Operating/storage temperature 0…+55 °C/-25…+85 °C
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Protection class IP 65
Ordering information M3100-00x
M3100-000 standard version
M3100-001 version with additional enable input
M3100-002 version with cable entry from the side
M3100-003 version with additional enable input and cable entry from the side
Product announcement
discontinued (for spare parts please contact the Beckhoff Service)