Difference between redundant systems and the multiple CPU systems

- Redundant systems A redundant system offers improved system reliability, as it consists of two basic systems, each of which includes a CPU module, powe... More Details >>

Setting of Q series registers whose data is held when a power failure occurs

Assign data registers (D) to Latch (1) or Latch (2) in the "Device Setting" window ([PLC Parameter] -> "Device Setting" window) to hold the data when a po... More Details >>

GX Works2's compatibility with the A series modules

GX Developer is automatically launched when A series is selected as a new project in GX Works2.For the A series modules, use GX Developer. More Details >>

Memory allocation for online change in GX Developer

Select [Online] -> [Write to PLC] on the menu of GX Developer, open the [File selection] tab, and press "Param + Prog" button. Then open the [Program] ta... More Details >>

I cannot place a main base unit in a module configuration diagram with GX Works3.

You may have already placed a main base unit in the module configuration diagram. Scroll up or down in the module configuration diagram and check if a main ... More Details >>

Index modifier of the bit device in the FX3GC series

FX3GC series does not support the index modifier for the bit devices. FX3U/FX3UC series supports it. More Details >>

Data length for fixed buffer data communications by QJ71E71

The units of send data and receive data are shown below. - Fixed buffer data communications with the "Procedure Exist" control method: Words - Fixed buff... More Details >>

Difference between AJ65SBTB1-16DT and AJ65SBTB1-16DT1

Major differences in input specifications are shown below. - AJ65SBTB1-16DT - Rated input current approx. 7 mA - ON voltage/ON current 14 VDC or higher/... More Details >>

How to make the expanded cyclic setting for CC-Link local stations

Make the expanded cyclic setting for a CC-Link local station using the programming tool, GX Developer or GX Works2. Follow the procedure below. (1) Set th... More Details >>

Cables for CC-Link networks

Use CC-Link dedicated cables. General-purpose cables cannot be used. More Details >>