Modicon M340 Plc Page 2-39 Communication

2/39 Processors: page 1/8 Ruggedized Modicon M340 modules: page 3/2 Complementary characteristics The following characteristics complement those indicated in the selection guide on page 2/5. Serial link integrated in the processors b Physical interface: v In Modbus: RS 232 4-wire or RS 485 2-wire, non-isolated (1) v In Character mode: RS 232 4-wire or RS 485 2-wire b Frame: v In Modbus: RTU/ASCII half duplex v In Character mode: full duplex in RS 232, half duplex in RS 485 b Maximum length of a tap link in RS 485 2-wire: v 15 m/ 49.21 ft in a non-isolated serial link v 40 m/ 131.23 ft in an isolated serial link (1) References I/O capacity Memory capacity Integrated communication ports Reference Weight kg/ lb BMX P3410 Standard processor with integrated serial link, 2 racks 512 discrete I/O 128 analog I/O 20 application- specific channels 2048 KB integrated Modbus serial link BMXP341000 0.200/ 0.441 BMX P3420 Performance processors with integrated serial link, 4 racks 1024 discrete I/O 256 analog I/O 36 application- specific channels 4096 KB integrated Modbus serial link BMXP342000 0.200/ 0.441 Modbus serial link CANopen bus BMXP342010 0.210/ 0.463 Modbus serial link CANopen bus version V2.1 (2) BMXP3420102 0.210/ 0.463 BMXP3420102CL (3) 0.210/ 0.463 Modbus serial link Ethernet Modbus/TCP network BMXP342020 0.205/ 0.452 (1) For isolated serial links, the TWDXCAISO isolation box must be used. (2) Version which can be used to customize configuration of the device Boot Up procedure compatible with all third-party CANopen products. Requires Unity Pro version V4.1. (3) Memory card must be ordered separately for the BMXP3420102CL processor (see page 1/13). Modicon M340 automation platform Modbus and Character mode serial link Characteristics, references BMXP341000/2000 BMXP342020 2 1 3 4 5 6 7 8 9 10 2 1 3 4 5 6 7 8 9 10

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