Availability of step ladders for FX in L series

Step ladders are not available in LCPU. There is no alternative function. 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 >>

Battery replacement for LCPU

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 >>

Writing files in CSV format

Use SP.FWRITE instruction to save the data to an SD memory card in CSV format. More Details >>

How to control MV value

You can use the output change upper limit value and the MV upper/lower limit limiter, the functions common to each PID control tag. Set the following parame... More Details >>

Programing example of heating/cooling control

The following shows an example of heating/cooling control using split control. * For details, refer to the "Programmable Controllers MELSEC PROC... More Details >>

Replacing personal computers with C Controller modules

The merits are as follows. (1) Downsized device The volume ratio is 1 to 10 in comparison with the VME card rack (6U) type. (2) Long-term stable supply... More Details >>

A/D conversions performed by Q64AD/Q68ADV/Q68ADI

(1) Sampling processing - Without the temperature drift compensation function Processing time = Number of channels usedx 80 (us/1 channel) - With the t... More Details >>

Whether or not device indirect specifications in structured ladder programs are allowed

Indirect specifications with "＠" cannot be used in structured ladder programs and the Structured Text. Use indirect specifications in a ladder language program. More Details >>

Input derating

Input derating is the percentage of simultaneous ON points, one of the specifications applied when input modules are used. When QX42 is used in a temperatur... More Details >>