Standard

EN 50295 / IEC 62026‑2

Topology

Line, star or tree structure (same as electrical wiring)

Transmission medium

Unshielded twisted pair (2 x 1.5 mm²) for data and auxiliary power

Connection method

Contacting of the AS-Interface cable by insulation piercing method

Maximum cable length

• 100 m without repeater
• 200 m with extension plug
• 300 m with two repeaters in series connection
• 600 m with extension plugs and two repeaters connected in parallel
  Larger cable lengths are also possible when additional repeaters are connected in parallel

Maximum cycle time

• 5 ms in full expansion with 31 standard addresses
• 10 ms in full expansion with 62 A/B addresses
• profile-specific for slaves with extended data, e.g. analog slaves

Number of stations per AS-Interface line

• up to 62 slaves (A/B technology)
• integrated analog value transmission

Number of binary sensors and actuators

max. 496 DI / 496 DQ

Access control

• cyclic polling master/slave procedure
• cyclic data copying from host (PLC, PC)

Error safeguard

Identification and repetition of faulty message frames