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CHAPTER 3 SPECIFICATIONS
3
3.2 Function List
3.2.2 Function list of the MELSECNET/H remote I/O module
3.2.2 Function list of the MELSECNET/H remote I/O module
The following table lists availability of each function of the MELSECNET/H remote I/O module when it is used in
MELSECNET/10 mode.
For details on the functions, refer to the following.
Q Corresponding MELSECNET/H Network System Reference Manual (Remote I/O network)
*1 The following functions are not supported.
*2 The modules cannot be monitored via the remote master station.
: Supported in MELSECNET/10 mode
×: Not supported in MELSECNET/10 mode
Function Description Availability
Basic
function
Cyclic
transmission
function
(periodic
communication)
Communications with I/O modules Enables communications with I/O modules using the LX/LY devices.
Communications with intelligent
function modules
Refreshes the data in intelligent function modules into the devices of
the MELSECNET/H remote I/O module.
*1
RAS function
Output reset function for
communication error
Turns off all outputs of the MELSECNET/H remote I/O station when
a data link error occurs.
Hardware error time CPU
operation mode setting
Determines whether the operation of the MELSECNET/H remote I/O
station stops or continues when a hardware error occurs in an
intelligent function module mounted on the MELSECNET/H remote
I/O station.
Diagnostic function Checks the status of network lines and module settings.
Redundant power supply on a
remote I/O station
Configures a redundant power supply system by mounting two
power supply modules on a redundant power supply base unit.
Online module change on a
remote I/O station
Changes the MELSEC-Q series modules mounted on the main base
unit or extension base units of the MELSECNET/H remote I/O
station during online.
Application
function
Transient
transmission
function (non-
periodic
communication)
Intelligent function module buffer
memory read/write
(REMFR/REMTO)
Dedicated instructions to read/write data from/to the buffer memory
of intelligent function modules mounted on the MELSECNET/H
remote I/O station.
Use the ZNFR and ZNTO instructions to access intelligent function
modules on the MELSECNET/H (MELSECNET/10 mode) remote
I/O station as well as the MELSECNET/10 remote I/O network.
( Reference manual for the MELSECNET/10 network system
used)
×
Remote I/O station system monitor
Performs a system monitor on intelligent function modules mounted
on the MELSECNET/H remote I/O station using GX Developer.
*2
Device test for a remote I/O station
Tests I/O devices in a sequence program without stopping the online
system using GX Developer connected with the MELSECNET/H
remote I/O station.
I/O assignment
Assigns I/O points to I/O modules and intelligent function modules
mounted on the MELSECNET/H remote I/O station.
Remote password
Prevents unauthorized access to the MELSECNET/H remote I/O
module and the CPU module by remote users.
• Auto refresh function of intelligent function modules
• CC-Link refresh parameter
• Data transfer between devices