Technical information
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Selection guide (continued)
Modicon M340 automation 
platform 
Communication, integrated ports and modules
Applications CANopen communication AS-Interface  
communication
Type of device Processors  
with integrated CANopen port 
AS-Interface  
actuator/sensor bus module
Network protocols
  CANopen
  AS-Interface
Structure Physical interface
ISO 11898 (9-way SUB-D connector) AS-Interface V3 standard
Type of connector 9-way SUB-D 3-way SUB-D
Access method CSMA/CA (multiple access) Master/slave
Data rate
20 Kbps...1 Mbps depending on distance 167 Kbps
Medium Double shielded twisted pair copper cable Two-wire AS-Interface cable
Configuration Maximum number of devices 63 depending on the devices connected 62 slaves
Max. length
20 m (1 Mbps)…2500 m (20 Kbps) 100 m,
500 m max. with 2 repeaters
Number of links of the same type per 
station
1
BMX P34 1000 processor:
2 AS-Interface modules
BMX P34 20p0 processor:  
4 AS-Interface modules
Standard services PDO implicit exchange (application data)
SDO explicit exchange (service data)
Transparent exchanges with 
the sensors/actuators
Conformity class Class M20 M4 profile
SMTP service 
notification by e-mail
– Yes, via EF function block 
Unity Pro u 4.0
–
Compatibility with processor – Standard and Performance 
(see page 1/2)
Type of processor or 
module depending 
on other integrated 
port 
None
BMX EIA 0100
Serial link
BMX P34 20102
Ethernet Modbus/TCP
BMX P34 20302
CANopen
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