Battery-less operation

Uncheck "Check battery", an item of "Error Check", in the [PLC RAS setting] ([PLC Parameter] -> [PLC RAS setting]). More Details >>

Parameter settings required to use the MODBUS(R) interface module as a slave station

If preset initial values are used, parameters do not need setting.If changing the basic parameter or MODBUS(R) device assignment parameter, use a sequence pr... More Details >>

Life expectancy of the CompactFlash card used in the high speed data logger module

The life expectancy is determined by the following calculation.Life expectancy (year) = Total writable size (GB) / 1 year write size (GB/year)For more detail... More Details >>

How to read device data and file registers in Q series

Specify the target memory in the Read from PLC window and execute reading. More Details >>

How to check scan time

SD520 stores the current scan time in 1 ms units. More Details >>

Duplicated coil error

The duplicated coil error is detected when SET instruction and RST instruction use the same device. More Details >>

Regarding the QoS function of the MQTT Communication function

There are three QoS levels and FX5-ENET is also supported. ・QoS0 - The message is sent only once from the source client. 　　　　　　Messages are not guarant... More Details >>

Regarding Cloud Connectivity

It is possible to connect to the cloud: MQTT broker (server) using the MQTT communication function of FX5-ENET. The MQTT communication function is supported... More Details >>

Connection of FX-20P and FX3U series

Whenan entry code (2nd entry code) registration is set in the FX3U series, sucherror canoccur. More Details >>

Number of FX3U-64CCL interface blocks that can be added to a main unit

One FX3U-64CCL can be added. More Details >>