Product datasheet BMXP342020 Characteristics processor module M340 - max 1024 discrete + 256 analog I/O - Modbus - Ethernet Main Range of product Modicon M340 automation platform Product or component type Processor module Concept CANopen Transparent Ready Number of racks 4 Number of slots 11 Discrete I/O processor capacity 1024 I/O multi-rack configuration 704 I/O single-rack configuration Analogue I/O processor capacity 256 I/O multi-rack configuration 66 I/O single-rack configuration Number of application specific channel 36 Monitoring Diagnostic counters Modbus Event counters Modbus Complementary Control channels Programmable loops Integrated connection type Ethernet TCP/IP RJ45 10/100 Mbit/s 1 twisted pair USB port 12 Mbit/s Non isolated serial link RJ45 character mode asynchronous in baseband RS232C full duplex 0.3...19.2 kbit/s 2 twisted shielded pairs Non isolated serial link RJ45 character mode asynchronous in baseband RS485 half duplex 0.3...19.2 kbit/s 1 twisted shielded pair Non isolated serial link RJ45 Modbus master/slave RTU/ASCII asynchronous in baseband RS232C half duplex 0.3...19.2 kbit/s 1 twisted shielded pair Non isolated serial link RJ45 Modbus master/slave RTU/ASCII asynchronous in baseband RS485 half duplex 0.3...19.2 kbit/s 1 twisted shielded pair Communication module processor 2 Ethernet communication module 4 AS-Interface module Communication service Bandwidth management, Ethernet TCP/IP Data Editor, Ethernet TCP/IP Modbus TCP messaging, Ethernet TCP/IP Rack Viewer, Ethernet TCP/IP SNMP network administrator, Ethernet TCP/IP Mar 09, 2017 1 Disclaimer: This documentation is not intended as a substitute for and is not to be used for determining suitability or reliability of these products for specific user applicationsPort Ethernet 10BASE-T/100BASE-TX Number of devices per segment 0...32 character mode 0...32 Modbus Number of devices 2 point-to-point character mode 2 point-to-point Modbus Bus length 0...10 m serial link non isolated character mode segment 0...10 m serial link non isolated Modbus segment 0...1000 m serial link isolated character mode segment 0...1000 m serial link isolated Modbus segment 0...15 m character mode point-to-point 0...15 m Modbus point-to-point Tap links length 0...15 m serial link non isolated character mode segment 0...15 m serial link non isolated Modbus segment 0...40 m serial link isolated character mode segment 0...40 m serial link isolated Modbus segment Number of addresses 0...248 character mode 0...248 Modbus Requests 1 K data bytes per request character mode 252 data bytes per RTU request Modbus 504 data bytes per ASCII request Modbus Control parameter One CRC on each frame (RTU) Modbus One LRC on each frame (ASCII) character mode One LRC on each frame (ASCII) Modbus Memory description 4096 kB internal RAM 256 kB internal RAM for data 3584 kB internal RAM for program constants and symbols Supplied memory card (BMXRMS008MP) for activation of standard web server, class B10 Supplied memory card (BMXRMS008MP) for backup of programs, constants, symbols and data Maximum size of object areas 256 kB unlocated internal data 32634 %Mi located internal bits Default size of object areas 1024 %MWi internal words located internal data 256 %KWi constant words located internal data 512 %Mi located internal bits Application structure 1 periodic fast task 64 event tasks 1 cyclic/periodic master task No auxiliary task Execution time per instruction 0.12 s Boolean 0.17 s double-length words 0.25 s single-length words 1.16 s floating points Number of instructions per ms 6.4 Kinst/ms 65 % Boolean + 35 % fixed arithmetic 8.1 Kinst/ms 100 % Boolean System overhead 0.13 ms fast task 0.7 ms master task Current consumption 95 mA 24 V DC Supply Internal power supply via rack Marking CE Status LED 1 LED green activity on Ethernet network (ETH ACT) 1 LED green processor running (RUN) 1 LED green status of Ethernet network (ETH STS) 1 LED red data rate (ETH 100) 1 LED red I/O module fault (I/O) 1 LED red memory card fault (CARD ERR) 1 LED red processor or system fault (ERR) 1 LED yellow activity on Modbus (SER COM) Product weight 0.205 kg Environment Ambient air temperature for operation 0...60 C Relative humidity 10...95 % without condensation IP degree of protection IP20 Protective treatment TC Standards CSA C22.2 No 142 2