I/O numbers of a MELSEC iQ-R series I/O combined module (RH42C4NT2P)

An input and output use a single I/O number. (This is the same as QH42P.) When you replace a module that uses serial I/O numbers (e.g. QX41Y41P) with this m... More Details >>

Security functions of MELSEC iQ-R series

The functions serve to protect the user property stored in a personal computer and the user property inside modules in the MELSEC iQ-R series system against... More Details >>

Combination of the MELSEC iQ-R series inter-module synchronization function and another network synchronous communication function

You can use the MELSEC iQ-R series inter-module synchronization function together with the CC-Link IE Field Network synchronous communication function.With ... More Details >>

Processing time of when multiple programs are executed with a MELSEC iQ-R series CPU module

When multiple programs are executed, the processing time (program switching time) becomes "Number of program files × 0.9 [us]". More Details >>

Built-in Ethernet function setting window of MELSEC iQ-R series CPU modules

"Module Parameter" of the CPU module is the setting window. <Setting a built-in Ethernet port> [Navigation Window]-> [Parameter]-> [CPU Modul... More Details >>

How to prevent unauthorized access to MELSEC iQ-R series CPU modules via a network

The MELSEC iQ-R series CPU module has "IP filter function" and "remote password function" as security functions. With the "IP filter function", you can set ... More Details >>

Combination of the MELSEC iQ-R series inter-module synchronization function and the CC-Link IE Field Network synchronous communication function

In the communication of the CC-Link IE Field Network synchronous communication function, you can synchronize the timing to send/receive data with the inter-... More Details >>

Number of modules that can be synchronized using the MELSEC iQ-R series inter-module synchronization function

The number of modules that can be synchronized is as follows. - In single CPU system configuration: 64 modules - In multiple CPU system configuration: 57 t... More Details >>

Overhead time of when a fixed scan execution type program of the MELSEC iQ-R series CPU module is executed

When the block number of the file register (R) is saved and stored, the overhead time becomes 35.9 [us]. When the number of the file register is not saved o... More Details >>

How to display the parameter setting window for a programmable controller with GX Works3

You can display the setting window from a module configuration diagram or system parameters. <Displaying the setting window from a module configuration... More Details >>