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SPECIFICATIONS3
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MELSEC-F
3 SPECIFICATIONS
This section explains the Ethernet module performance specifications and
transmission specifications.
For the general specifications, refer to the INSTALLATION MANUAL of FX
3U-ENET
and the User’s Manual of the PLC main unit.
3.1 Performance Specifications
The following explains the performance specifications of the Ethernet module.
*1 Length between the Hub and node.
Item Specification
Transmission
specifications
Data transmission speed 100 M bps 10 M bps
Communication mode Full-duplex/Half-duplex
Transmission method Base band
Maximum segment length 100 m (328' 1") *1
Maximum number of
nodes/connection
Cascade connection Maximum 2 stages Cascade connection Maximum 4 stages
Transmission
data storage
memory
Number of simultaneously open
connections allowed
8 connections
(Connections usable by the sequence program)
Fixed buffer 1023 word 8
E-mail
Attached file 2048 words 1
Main text 256 words 1
Number of I/O occupied points 8 points
24V DC external power supply 240mA, 24V DC +20%, -15%, ripple (p-p) less than 5%
Allowable instantaneous power failure time Operation can be continued upon occurrence of instantaneous power failure for 1 ms or less.
5V DC internal power supply
5V DC of PLC is not used.
(5V DC is converted from 24V DC external power supply.)
Make sure to observe the power-on timing and the procedure.
Number of connectable units to the main unit 1
Applicable PLC
FX
3G PLC : Ver. 1.00 or later
FX
3U/FX3UC PLC: Ver. 2.21 or later
External dimensions 90 (3.55") (H) 55 (2.17") (W) 87 (3.43") (D) [mm] (inches)
Weight 0.3 kg (0.66 lbs)
POINT
The module operation is not guaranteed if any of the following connection is
used. Check the module operation on the user side.
• Connections using the Internet (general public line) (Connections using
Internet connection service provided by Internet service providers and
telecommunications carriers)
• Connections using devices in which a firewall is installed
• Connections using broadband routers
• Connections using wireless LAN