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 use the database function of the MELSEC iQ-R series

The database function manages tabular data including product information and production information as a database in a programmable controller. <... More Details >>

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 >>

Overhead time before and after the startup of an interrupt program with a MELSEC iQ-R series CPU module

Although it depends on interrupt factors, the overhead time before startup becomes 10.8 to 23.8 [us] and the time after startup becomes 6.5 to 17.4 [us]. 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 >>

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 >>

IP filter function of MELSEC iQ-R series CPU modules

You can set IP addresses accessible to the CPU module and prevent unauthorized access to the CPU module. <Setting the IP filter function> [Navigati... More Details >>

How to change the specified connection destination of GX Works3

You can change the destination in [Online]-> [Specify Connection Destination]. Change the destination depending on the communication path to be used. Yo... More Details >>

Digit specification for bit devices in ST language with GX Works3

For a label where digits are to be specified, set a bit type array as its data type. The following shows an example of when a global label is used. - Globa... 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 >>