Precautions For System Configuration - Mitsubishi Electric MELSEC iQ-R Series User Manual

5.5

Precautions for System Configuration

Firmware version limitations due to combination of master and local stations
The master station and a local station cannot be used in the following combination.
• The combination of the master station with firmware version "03" or earlier and a local station with firmware version "04" or
later
• The combination of the master station with firmware version "04" or later and a local station with firmware version "03" or
earlier
Update the RJ71GN11-T2 with firmware version "03" or earlier to firmware version "04" or later before use.
The following describes how to update the firmware.
 MELSEC iQ-R Module Configuration Manual
The following describes the operation of each station according to the firmware version when the master station is combined
with a local station.
Master station
Firmware version "03" or earlier
Firmware version "04" or later
Ring topology limitations
For a ring topology, use the RJ71GN11-T2 with a firmware version of "10" or later. If the firmware version is earlier than "10",
a data link is not performed.
The following table lists the operations when "Network Topology" under "Basic Settings" is set to "Ring", and the setting
network topology is different from the actual connection status.
Actual connection status
Line topology
Star topology
Coexistence of line and star
topologies
Ring topology
5 SYSTEM CONFIGURATION
54
5.5 Precautions for System Configuration
Local station
Firmware version "03" or earlier
Normal operation
Master station side
• The local station with firmware version "03" or
earlier is disconnected. There is no impact on
the local station with firmware version "04" or
later.
Local station side
• The error code 300AH occurs and the station is
disconnected.
Communication speed
Mixture of different
communication speeds
Same communication speed
used by all stations


Mixture of different
communication speeds
Same communication speed
used by all stations
Firmware version "04" or later
Master station side
• The local station with firmware version "04" or
later is disconnected. There is no impact on the
local station with firmware version "03" or earlier.
Local station side
• The error code 300AH occurs and the station is
Normal operation
Operation
A data link is not performed.
A data link is performed in a state in which a loopback station is available.
A data link is not performed.
Normal operation
disconnected.