Mitsubishi Electric MR-J4-_GF, Instruction Manual

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1. FUNCTIONS AND CONFIGURATION
1 - 8
1.5 Communication specifications
1.5.1 Communication specifications of CC-Link IE Field Network Basic
Function Description
Communication protocol UDP
Port No.
No. 61450 (cyclic data)
No. 61451 (NodeSearch and IPAddressSet dedicated for CC-Link IE Field Network Basic only)
Cyclic data 32 points (64 bytes)
IP address
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
Subnet mask Default value (recommended): 255.255.255.0
Message format Refer to chapter 2.
Physical layer 100BASE-TX
Communication connector RJ45, 1 port (CN1)
Communication cable CAT5e, shielded twisted pair (4 pair) straight cable
Network topology Star
Variable communication
speed
100 Mbps
Transmission distance
between stations
Max. 100 m
Number of nodes Max. 64 stations (max. number of connections per group: 16 stations)
Standard response time
(Note 1)
(Link scan time/timeout time
(Note 2, 3))
10 ms
Note 1. Reference response time refers to the time taken by the servo amplifier to return a response to the master station after
receiving a command from the master station.
2. Calculate the link scan time as follows. Also, use the reference 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).
1.5.2 SLMP communication specifications
Function Description
Communication protocol UDP
Port No.
iQSS No. 45237 (NodeSearch and IPAddressSet only)
UDP No.
5010
IP address
IPv4 range: 0.0.0.0 to 255.255.255.255
Use the same network address for both the master and slave stations.
Default value: 192.168.3.0
Subnet mask Default value (recommended): 255.255.255.0
Message format Refer to chapter 3.
Physical layer 100BASE-TX
Communication connector RJ45, 1 port (CN1)
Communication cable CAT5e, shielded twisted pair (4 pair) straight cable
Network topology Star
Variable communication
speed
100 Mbps
Transmission distance
between stations
Max. 100 m
Maximum number of
connections
No limit