In order for the programmable controller to receive input pulses completely, the ON duration and OFF duration of inputs

Octal numbers are assigned as input/output numbers for the MELSEC-F series. The octal number system uses the digits from

Up to 63 files can be handled simultaneously. In addition, up to 1000 files can be created by creating FIFO function fil

The present scan time is stored in D8010. Monitor the value using a programming tool such as GX Works2 and GX Developer.

If the OUT instruction using the device number of the latch target device exists in a sequence program, the latched data

When a flag contact is not programmed directly under the instruction to be checked, the flag may be turned off depending

Standard counters offer counting up to 10Hz. For high-speed input signals which exceed 10Hz, use high-speed counters, in

Check that the RST instruction of the high-speed counter is not executed while the program is running. For the high-spee

For your safety, programmable controllers must be grounded. Incomplete common grounding within the control panel or com

The station number setting is not required for non-protocol communication.

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FAQ > Controllers > Programmable Controllers MELSEC > MELSEC-F Series > Main Unit

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FAQ within [ Main Unit ]

71-80 of Total 126

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Receiving short pulses

In order for the programmable controller to receive input pulses completely, the ON duration and OFF duration of inputs in the programmable controller requir... More Details >>
- No：24704
- Release Date：2019/02/27 09:00
Assignment of input/output numbers (MELSEC-F series)

Octal numbers are assigned as input/output numbers for the MELSEC-F series. The octal number system uses the digits from 0 to 7 → from 10 to 17 → from 20 to... More Details >>
- No：24868
- Release Date：2019/04/15 08:06
Number of files that can be created inside a CF card in the FX3U-CF-ADP

Up to 63 files can be handled simultaneously. In addition, up to 1000 files can be created by creating FIFO function files. * The total capacity of the files... More Details >>
- No：24944
- Release Date：2019/04/18 14:26
How to check the scan time (MELSEC-F series)

The present scan time is stored in D8010. Monitor the valueusing a programming tool such as GX Works2 and GX Developer. More Details >>
- No：24685
- Release Date：2019/02/22 11:40
- Update：2019/02/22 15:07
Data backup failure

If the OUT instruction using the device number of the latch target device exists in a sequence program, the latched data may be overwritten by execution of t... More Details >>
- No：24783
- Release Date：2019/02/27 16:16
Instruction execution complete flag

When a flag contact is not programmed directly under the instruction to be checked, the flag may be turned off depending on the execution status of another i... More Details >>
- No：24988
- Release Date：2019/04/23 07:22
Distinguishing the usage of standard counters and high-speed counters

Standard counters offer counting up to 10Hz. For high-speed input signals which exceed 10Hz, use high-speed counters,interruption function, or another proce... More Details >>
- No：24785
- Release Date：2019/02/27 16:31
Counting of a built-in high-speed counter

Check that the RST instruction ofthe high-speed counter is not executed whilethe program is running. Forthe high-speed counter which supports the external r... More Details >>
- No：24787
- Release Date：2019/02/28 09:06
How to ground programmable controllers

For your safety, programmable controllers must be grounded. Incomplete common grounding within the control panel or common grounding with heavy electrical s... More Details >>
- No：22276
- Release Date：2018/08/30 13:48
Station number setting in the "PLC System(2)" tab of PLC Parameter setting on GX Developer when non-protocol communication is performed

The station number setting is not required for non-protocol communication. More Details >>
- No：24948
- Release Date：2019/04/18 14:27

71-80 of Total 126

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