Inter-module synchronization function of MELSEC iQ-R series

The inter-module synchronization function synchronizes the timing to control signals of multiple modules. This function synchronizes the input or output tim... 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 >>

Execution in a multi task environment

The QBF_Open ( ) function or mdOpen ( ) function is required for every task. Do not share the PATH acquired using an Open function with other tasks.Also, exe... More Details >>

Communication between Ethernet and FL-net

The communication between the Ethernet interface module and FL-net (OPCN-2) interface module cannot be established. More Details >>

Speeds of access to file registers

If file registers are registered in the standard RAM and "R" is specified by an instruction, the processing time is the same as is the case with the internal... More Details >>

Specifying steps in printing data displayed in the window in GX Works2

GX Works2 Version 1.45X or later supports a print range specifying capability.Set "Start Step" and "End Step" for "Specified Print Range" in the Print window. More Details >>

Compatibility between the A series modules and Q series modules

When an ACPU module is replaced with a QCPU module, programs for the ACPU module can be used by changing the PLC type in GX Developer. However, the programs ... More Details >>

Hardware setting for using Q series extension base units

You need to set the number of extension base units with the connector for setting the number of extension base units.For details, refer to the following.SH-0... More Details >>

TCP retransmission timer setting for built-in Ethernet port LCPU

For the built-in Ethernet port in the L series CPU, the TCP retransmission timer setting is fixed and unchangeable. The retransmission occurs six times. The... More Details >>

Restriction on the use of CPU when branch module and extension module are used

Use L series CPU modules whose first 5 digits of the serial number are "13072" or later. More Details >>