Communication Specifications - Mitsubishi Electric MELSERVO-J4 MR-J4-TM Instruction Manual

1. PROFINET COMMUNICATION

1.2 Communication specifications

The following shows the communication specifications.
Item
PROFINET communication
specifications
Physical layer
Communication connector
Communication cable
Network topology
Variable communication
speed
Transmission speed between
stations
Number of nodes
Conformance class
Real time class
Acyclic Data Exchange
Process Data (Cyclic Data
Exchange)
Byte order
LED display
Description
PROFINET IO
Real Time (RT) communication
PROFIdrive v4.1
100BASE-TX
RJ45, 2 ports (port 1, port 2)
CAT5e, shielded twisted pair (4 pair) straight cable Double-shielded type recommended
Line, Star, Ring, or a connection topology where
the topologies are used together
100 Mbps (Full duplex)
Max. 100 m
Compliant with the specifications of the standard
Ethernet
Conformance class B (CC-B)
RT_Class_1
Transmitting/Receiving: 1 channel each
Transmission cycle: 1, 2, 4, 8, 16, 32, 64, 128,
256, 512 ([ms])
Variable mapping: compatible
Big endian
Network Status, Module Status, LINK/Activity (port
1, port 2)
Transmission cycle
= 31.25 µs × SendClockFactor × ReductionRatio
Setting range of SendClockFactor
(= 32)
Setting range of ReductionRatio
(= 1, 2, 4, 8, 16, 32, 64, 128, 256, 512)
Variable mapping
Maximum size: 48 bytes each transmitting/
receiving
Maximum number of mapping: 24 each
transmitting/receiving
1 - 3
Remark