Restricted Functions And Specifications; Module Parameter; Appendix 8 When Connecting The Module To A Remote Head Module - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

Appendix 8
This section describes the restrictions for when connecting the RJ71EN71 to a remote head module.

Restricted functions and specifications

Function
This section describes the restricted functions of when connecting the RJ71EN71 to a remote head module.
Function
Communications using the SLMP
Communications using the predefined protocol
Socket communications
Communications using the fixed buffer
Communications using a link dedicated instruction
File transfer function (FTP server)
Time setting function (SNTP client)
IP filter function
IP address change function
Redundant system function
Communications using MODBUS/TCP

Module parameter

There are differences between when the RJ71EN71 is connected to the CPU module and when the RJ71EN71 is connected
to the remote head module. For details, refer to the following.
 MELSEC iQ-R CC-Link IE Field Network Remote Head Module User's Manual (Application)
This manual describes the restrictions specific to the RJ71EN71.
Parameter name
Basic Settings Own Node Settings
External Device
Configuration
Open/close processing
Perform the open/close processing of the connection from the external device.
When Connecting the Module to a
Remote Head Module
Restrictions
• The command that can be used differs from that of the CPU module. For the command that can be
used in the remote head module, refer to the following.
 SLMP Reference Manual
• The file that can be operated differs from that of the CPU module. For the file that can be operated in
the remote head module, refer to the following.
 MELSEC iQ-R CC-Link IE Field Network Remote Head Module User's Manual (Application)
Cannot be used.
Cannot be used.
Cannot be used.
Although the own station can be specified as the relay station or target station, the link dedicated
instruction cannot be executed from the own station.
• The file that can be operated differs from that of the CPU module. For the file that can be operated in
the remote head module, refer to the following.
 MELSEC iQ-R CC-Link IE Field Network Remote Head Module User's Manual (Application)
• The number of files that can be written to the data memory differs from that of the CPU module. For
the maximum number of files that can be written to the data memory of the remote head module,
refer to the following.
 MELSEC iQ-R CC-Link IE Field Network Remote Head Module User's Manual (Startup)
Cannot be used.
When the network type is "Q Compatible Ethernet", this function cannot be used.
When the network type is "Q Compatible Ethernet", this function cannot be used.
Although the RJ71EN71 can be connected to a redundant system of a remote head module, redundant
system of the RJ71EN71 cannot be configured.
• When the network type is "Q Compatible Ethernet", this function cannot be used.
• The default values set for the MODBUS device assignment parameters cannot be used for creating a
project for the engineering tool using the remote head module. Clear the values first before starting
the setting.
Restrictions
Select "Do Not Open by Program" for "Opening Method".
When performing TCP/IP communications, select "Unpassive Connection Module" or "Fullpassive
Connection Module" for the external device.

Appendix 8 When Connecting the Module to a Remote Head Module

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