Behavior of sequence program in event of momentary power failure in QCPU

(1) When a momentary power failure occurs for a period not longer than the allowable momentary power failure time When the momentary power failure occurs, t... 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 >>

Label programs in GX Works2

Change the program using the following method.Write the label program to the programmable controller CPU and perform PLC read for the parameters and the prog... More Details >>

Open setting of the built-in Ethernet port QCPU

No.It is necessary to configure one port to use the MELSOFT connection. More Details >>

Writing files in CSV format

Use SP.FWRITE instruction to save the data to an ATA card in CSV format.For Q00UJCPU, Q00UCPU, and Q01UCPU, however, memory cards cannot be used thus data ca... 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 >>

Necessity for MX Component when MX Sheet is used

Yes.You can also purchase MX Works, a set of MX Sheet and MX Component. More Details >>

Change timing of the status of A/D conversion module's I/O signals

(1)If the A/D conversion enable signal is kept ON, conversion processing is kept performed. Once conversion processing is successfully performed, A/D conve... More Details >>

Replacing an AnS I/O module with a Q I/O module

Yes. 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 >>