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

The device memory data cannot be stored in a memory cassette. In the FX3U/FX3UC series, a part of device memory data ca

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

On the Project view of the Navigation window, select "Parameter" → "PLC Parameter" using GX Works2 (or GX Developer). Cl

･ The FX-USB-AW can be used for the programmable controllers except for the FX3S/FX3G/FX3GC series. ･ Since the FX3S/FX

Yes, there is. T256 to T319 can be used for the1 ms timer, and T246 to T249 can be used for the 1 ms retentive timer.

You can check the error history in the module detailed information in the system monitor of GX Developer.

Connect terminating resistors to both ends of physical cables.A master station is not necessarily required to be connect

If a repeater hub is used, 10BASE-T allows a maximum of four levels of cascade connections and 100BASE-TX allows a maxim

A link error has occurred in one of the slave stations in connection.Master station: Check the parameter again.Slave sta

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Programmable Controllers MELSEC

MELSEC iQ-R Series(45)
MELSEC iQ-F Series(643)

CPU Module(179)
I/O Module(5)
Analog(16)
High-Speed Counter(14)
Motion/Positioning(11)
Network/Communication(97)
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Engineering Software(61)
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Engineering Software(129)

FAQ within [ Programmable Controllers MELSEC ]

271-280 of Total 1010

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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
- Category： MELSEC-F Series , Engineering Software , Main Unit
Data that can be stored in a memory cassette (FX3U/FX3UC)

The device memory data cannot be stored in a memory cassette. In the FX3U/FX3UC series, a part of device memory data can be latched using a battery. The de... More Details >>
- No：24789
- Release Date：2019/02/28 09:07
- Category： MELSEC-F Series , Accessories
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
- Category： MELSEC-F Series , Engineering Software , Main Unit
Externally switching the operating status of a programmable controller

On the Project view of the Navigation window, select "Parameter" → "PLC Parameter" using GX Works2 (or GX Developer). Click the "PLC System(1)" tab, and set ... More Details >>
- No：24768
- Release Date：2019/02/27 15:01
- Category： MELSEC-F Series , Engineering Software , Main Unit
Connecting a USB interface of a personal computer to a programmable controller

･ The FX-USB-AW can be used for the programmable controllers except for the FX3S/FX3G/FX3GC series. ･ Since the FX3S/FX3G/FX3GC series have the built-in USB... More Details >>
- No：24707
- Release Date：2019/02/27 09:00
- Category： MELSEC-F Series
1 ms timer (FX3G/3GC series)

Yes, there is. T256 to T319 can be used for the1 ms timer, and T246 to T249 can be used for the 1 ms retentive timer. More Details >>
- No：24680
- Release Date：2019/02/22 11:39
- Update：2019/02/22 14:03
- Category： MELSEC-F Series , Main Unit
How to check the error history of the QJ71C24N with GX Developer

You can check the error history in the module detailed information in the system monitor of GX Developer. More Details >>
- No：23064
- Release Date：2018/09/03 17:31
- Category： Network related products
Connecting terminating resistors for CC-Link communication

Connect terminating resistors to both ends of physical cables.A master station is not necessarily required to be connected to either end of its network. More Details >>
- No：23046
- Release Date：2018/09/03 17:31
- Category： Network related products
Limitation on the number of levels of cascade connections when QJ71E71-100 is used

If a repeater hub is used, 10BASE-T allows a maximum of four levels of cascade connections and 100BASE-TX allows a maximum of two levels of cascade connectio... More Details >>
- No：23040
- Release Date：2018/09/03 17:31
- Category： Network related products
What makes the ERR LED flash in a CC-Link network

A link error has occurred in one of the slave stations in connection.Master station: Check the parameter again.Slave station: Reassess the power supply, the ... More Details >>
- No：23023
- Release Date：2018/09/03 17:31
- Category： Network related products

271-280 of Total 1010

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