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 >>

QnA-compatible 3E frame command (0406) for the built-in Ethernet port QCPU

The built-in Ethernet port QCPU is not compatible with a multiple-block batch read command (0406) of the MC protocol. Executable commands are the following.... More Details >>

Socket communication with the built-in Ethernet port of a CPU module

The communication between programmable controllers can be established using the socket communication function instructions. More Details >>

Recommended cables for MODBUS(R) interface module QJ71MB91

The RS-232 cable should meet RS-232 standards and not exceed 15 m in length.The RS-422/485 cable should meet specifications described in the following manual... More Details >>

Using Structured Text in GX Works2 simple projects

Select "Use Label" in the New Project window. More Details >>

Battery replacement for universal model QCPU

The contents of the standard RAM and latch devices are not erased if the battery replacement is completed within three minutes, which is the backup power tim... More Details >>

Battery life

It depends on the model of the CPU module, the amount of battery consumption, and the power-on time ratio.Example) For Q06HCPU with power-on time ratio of 50... 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 >>

Support of the DHCP (Dynamic Host Configuration Protocol) function by the FX3U-ENET-L (for Ethernet communications)

The FX3U-ENET-L does not support the DHCP function. Set the fixed IP address using FX Configurator-EN-L. (FX Configurator-EN-L can be downloaded from Mitsubi... More Details >>

Differences between the AJ65SBTB1-16TE and AJ65SBTB1B-16TE1

The following shows the major differences. -AJ65SBTB1-16TE - 1-wire terminal block, 1-common type - Maximum load current: 0.1 A/point -Protection fu... More Details >>