Selection guide (continued) Modicon Quantum automation platform Networks and buses Type of network and bus Modbus Plus network AS-Interface actuator/ sensor bus Modbus SL bus Structure Physical interface Single or redundant copper cable Optical Þbre 2-wire unshielded cable Single copper cable Access method Token ring Master/slave, M2 proÞle (AS-Interface V1) Master/slave Data rate 1 Mbps 167 Kbps 19.2 Kbps Medium Twisted pair Ribbon cable Shielded twisted pair b Standard addressing with 31 slaves (4 discrete inputs/ 4 discrete outputs) b Local diagnostics (slave devices, channel status, etc.) Slave Modbus protocol: b Reading/writing of PLC variables b Programming b Download b 1 or 2 RS 232/485 ports depending on the model 1 2 3 4 5 6 Conformity class – Transparent Standard Web server Ready Ethernet TCP/IP standard communication services services – Communication services b Reading/writing of variables b Global Data service b Peer Cop service b Distributed I/O (DIO) service – 7 Modbus master protocol: b Max. 247 slaves Compatibility CPU All CPUs Software Unity Pro, Concept, ProWORX 32 8 9 10 Bus current required 250 mA 1300…3800 mA depending on 140 CPU model 780 mA for 140 NOM External power supply – Functional safety certiÞcation – Module type 140 CPU 1 integrated port 140 NOM 2pp 00 140 EIA 921 00 140 CPU 1 or 2 integrated ports 140 NOM 2pp 00 Page 1/2 5/79 1/2 5/4 1300…3800 mA depending on 140 CPU model 780 mA for 140 NOM 0
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