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Programmable Controllers MELSEC

MELSEC iQ-R Series(45)
MELSEC iQ-F Series(474)

CPU Module(134)
I/O Module(5)
Analog(11)
High-Speed Counter(8)
Motion/Positioning(10)
Network/Communication(72)
Option(9)
Engineering Software(48)
Safety Control(1)

Engineering Software(129)

FAQ within [ Programmable Controllers MELSEC ]

1-10 of Total 936

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Using a specified bit (on/off) of a word device (D) as a condition for a contact

In the FX3U/FX3UC series, a bit in a word device can be specified. It can be specified by "Word device (D only) + Decimal point + Bit position (0 to F)". A... More Details >>
- No：22261
- Release Date：2018/08/30 13:48
- Category： MELSEC-F Series , Engineering Software , Main Unit
Input wiring (FX3 series)

For the sink input, the "S/S" terminal and the "24V" terminal are needed to be short-circuited. More Details >>
- No：22263
- Release Date：2018/08/30 13:48
- Category： MELSEC-F Series , Main Unit , I/O Extension
Types of Batteries used in MELSEC-F

F2-40BL: Lithium thionyl chloride primary battery FX2NC-32BL: Lithium thionyl chloride primary battery FX3U-32BL: Manganese dioxide lithium primary battery F... More Details >>
- No：22265
- Release Date：2018/08/30 13:48
- Category： MELSEC-F Series , Main Unit , Accessories
The power supply lamp of a running programmable controller suddenly turned off or flashes

Check whether the lamp is back to normalafter disconnecting the wiring of the "24V" (service power supply) terminal. Ifthe lamp is back to normal,the servic... More Details >>
- No：22267
- Release Date：2018/08/30 13:48
- Update：2019/02/19 11:53
- Category： MELSEC-F Series , Main Unit
External power supply for input(MELSEC-F)

For the MELSEC-F series, only DC power supply type can use an external power supply. More Details >>
- No：22268
- Release Date：2018/08/30 13:48
- Category： MELSEC-F Series , Main Unit
Ethernet-connectable modules in MELSEC-F

The FX3U-ENET-L and FX3U-ENET-ADP are Ethernet-connectable. The FX3U-ENET-L can be used with the FX3U and FX3UC series (both Ver. 2.21 or later). The FX3U-... More Details >>
- No：22270
- Release Date：2018/08/30 13:48
- Category： MELSEC-F Series , Main Unit , Network/Communication
Multiple input COM terminals

All input COM terminals send the same signal because all the terminals are internally connected. To turn on the input, the extension unit must be connected ... More Details >>
- No：22274
- Release Date：2018/08/30 13:48
- Category： MELSEC-F Series , Main Unit , I/O Extension
Turning on a bit in the data register

In the FX3U/FX3UC series, the bit specification of the data register is possible. (Example) D0.7→7th bit in D0 For the other types of MELSEC-F programmable... More Details >>
- No：22275
- Release Date：2018/08/30 13:48
- Category： MELSEC-F Series , Engineering Software , Main Unit
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
- Category： MELSEC-F Series , Main Unit , I/O Extension
Necessity for installing a noise filter

Unless the necessity is described in manuals, a noise filter is not required. However, if the programmable controller is used in an environment with much no... More Details >>
- No：22283
- Release Date：2018/08/30 13:48
- Category： MELSEC-F Series , Main Unit , I/O Extension , Analog Control , High-Speed Counting , Positioning Control , Network/Communication , Accessories

1-10 of Total 936

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