You can check the connection to the hub with bit 10 of the special register SD1288. When bit 10 of the SD1288 is on, the

This problem occurs because the consecutive free memory space for temporarily storing the program during online change i

The boot operation from the standard ROM is not possible. The program memory of LCPU is a flash ROM. Thus, writing in th

The following settings are required for the "Open Setting" for the number of connected external devices.- Protocol: "UDP

The socket communication can be used simultaneously with the simple PLC communication function.

In L02CPU-P, the general-purpose output of the built-in I/O is source type. In L02CPU, the general-purpose output of the

For the built-in Ethernet port in the L series CPU, the TCP retransmission timer setting is fixed and unchangeable. The

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

Use the time setting function to synchronize the internal clock.

(1) When it happened no longer than the allowable momentary power failure time. The module records an error log a

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Programmable Controllers MELSEC

MELSEC iQ-R Series(45)
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FAQ within [ Programmable Controllers MELSEC ]

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Detecting the connection between a built-in Ethernet port QCPU and hub

You can check the connection to the hub with bit 10 of the special register SD1288. When bit 10 of the SD1288 is on, the QCPU is in connection with the hub. More Details >>
- No：22712
- Release Date：2018/09/03 17:29
- Category： MELSEC-Q Series
When a message indicating that "the memory space is insufficient" appears during online change

This problem occurs because the consecutive free memory space for temporarily storing the program during online change is insufficient. In this case, perform... More Details >>
- No：22722
- Release Date：2018/09/03 17:29
- Category： MELSEC-Q Series
Boot operation from the standard ROM

The boot operation from the standard ROM is not possible. The program memory of LCPU is a flash ROM. Thus, writing in the program memory achieves a ROM opera... More Details >>
- No：22728
- Release Date：2018/09/03 17:29
- Category： MELSEC-L Series
LCPU built-in Ethernet port setting when using the simple PLC communication function

The following settings are required for the "Open Setting" for the number of connected external devices.- Protocol: "UDP"- Open System: "MELSOFT connection" More Details >>
- No：22739
- Release Date：2018/09/03 17:29
- Category： MELSEC-L Series
Simultaneous use of simple PLC communication function and socket communication

The socket communication can be used simultaneously with the simple PLC communication function. More Details >>
- No：22740
- Release Date：2018/09/03 17:29
- Category： MELSEC-L Series
Difference between L02CPU-P and L02CPU

In L02CPU-P, the general-purpose output of the built-in I/O is source type. In L02CPU, the general-purpose output of the built-in I/O is sink type. More Details >>
- No：22743
- Release Date：2018/09/03 17:29
- Category： MELSEC-L Series
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 >>
- No：22745
- Release Date：2018/09/03 17:29
- Update：2018/09/21 17:52
- Category： MELSEC-L Series
Availability of step ladders for FX in L series

Step ladders are not available in LCPU. There is no alternative function. More Details >>
- No：22752
- Release Date：2018/09/03 17:29
- Category： MELSEC-L Series
LCPU internal clock synchronization

Use the time setting function to synchronize the internal clock. More Details >>
- No：22755
- Release Date：2018/09/03 17:30
- Category： MELSEC-L Series
Behavior of sequence program in event of momentary power failure in LCPU

(1) When it happened no longer than the allowable momentary power failure time. The module records an error log and suspends the operation processing. Ho... More Details >>
- No：22756
- Release Date：2018/09/03 17:30
- Update：2018/09/22 10:43
- Category： MELSEC-L Series

411-420 of Total 1010

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