20
2 SUPPORTED DEVICES AND ACCESSIBLE RANGES
2.1 Supported Devices
2 SUPPORTED DEVICES AND ACCESSIBLE
RANGES
This chapter explains the supported modules and accessible modules.
2.1 Supported Devices
Communications using the MC protocol can be performed as an external device if a device can incorporate application
programs and send/receive data using the control procedures of the MC protocol.
This manual explains MC protocol communication when connecting the devices shown below and external devices.
2.2 Accessible Range and Accessible Modules
A CPU module and other station on the network can be accessed via a supported device.
Accessible range
The following devices are accessible.
• Supported devices that are connected to the external device directly (connected station)
• Other stations on the same network with the supported devices
*1
• Other stations on the other network that are connected to other station in the same network with the supported device.
*1
*1 Other station on which network No. and station No. is set, and a multidrop connection station can be accessed.
The accessible range differs in types (frames) of a message format.
The following figure shows the maximum range that can be accessed.
For the accessible range of each message, refer to the following sections.
For details on the accessible range of programmable controllers of other stations on a network system, refer to the manual for
the network system used.
The multiple CPU system is supported. For details on the multiple CPU system, refer to the following section.
Page 461 Compatibility with Multiple CPU Systems
Type Series Model name Reference
Serial communication module MELSEC iQ-R series RJ71C24, RJ71C24-R2, RJ71C24-R4 Page 28 MESSAGES OF SERIAL
COMMUNICATION MODULE
MELSEC-L series LJ71C24, LJ71C24-R2
MELSEC-Q series QJ71C24N, QJ71C24N-R2, QJ71C24N-
R4, QJ71C24, QJ71C24-R2
Ethernet interface module MELSEC-L series LJ71E71-100
MELSEC-Q series QJ71E71-100, QJ71E71-B5, QJ71E71-B2 Page 39 MESSAGES OF ETHERNET
INTERFACE MODULE
Message formats of serial communication modules Message formats of Ethernet interface modules
• Page 45 Accessible range of 4C frame
• Page 46 Accessible range of 3C frame
• Page 46 Accessible range of 2C frame
• Page 47 Accessible range of 1C frame
• Page 48 Accessible range of 4E frame, 3E frame
• Page 49 Accessible range of 1E frame
External device
other stations
other stations
Multidrop connection
Multidrop connection
Network
No.1
Network
No.n
other stations
(Relay station)
(Relay station)
Connected station
(Host station)
other stations
Access range