Communication Specifications; Communication Specifications Of Cc-Link Ie Field Network Basic - Mitsubishi Electric MR-JE-C Series Instruction Manual

2. CC-Link IE Field Network Basic/SLMP

2.2 Communication specifications

2.2.1 Communication specifications of CC-Link IE Field Network Basic

Function
Communication protocol
Port No.
Cyclic data
IP address
Subnet mask
Message format
Physical layer
Communication connector
Communication cable
Network topology
Variable communication
speed
Transmission speed between
stations
Number of nodes
Standard response time
(Note 1)
(Link scan time/timeout time
(Note 2, 3))
Note 1. Standard response time refers to the time from when the servo amplifier receives a command from the master station until
when it returns a response to the master station.
2. Calculate the link scan time as follows. Also, use the standard response time for Ns.
MELSEC iQ-R/MELSEC-Q/L: Ls = Ns + Nm
MELSEC iQ-F: Ls = SM + {(Ns + Nm)/SM}
Ls: Link scan time, Ns: Response time of slave station, Nm: Request time of master station, SM: Sequence scan time
3. Check the current link scan time (when all the slave stations are in a normal state) using the CC-Link IE Field Network Basic
diagnosis function. Then, set the timeout time approximately 5 times the link scan time (example: 50 ms when the current link
scan time is 10 ms).
UDP
No. 61450 (cyclic data)
No. 61451 (NodeSearch and IPAddressSet dedicated for CC-Link IE Field Network Basic only)
32 points (64 bytes)
IPv4 range: 0.0.0.1 to 223.255.255.254
Use the same network address for both the master and slave stations.
Default value: 192.168.3.0
Default value: 255.255.255.0
Refer to section 2.3.1.
100BASE-TX
RJ45, 1 port (CN1)
CAT5e, shielded twisted pair (4 pair) straight cable
Star
100 Mbps
Max. 100 m
Max. 64 stations (max. number of connections per group: 16 stations)
Number of usable stations: 1 station per MR-JE-_C servo amplifier
10 ms
Description
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