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FAQ within [ MELSEC-F Series ]
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Turning on/off a specified bit of a word device (D) using a simple program
In the FX programmable controllers (FX3U/FX3UC series), a bit in a word device can be specified in a program. It can be specified as "word device (D only) + ... More Details >>
- No:25011
- Release Date:2019/04/23 11:13
- Category: MELSEC-F Series , Engineering Software , Main Unit
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Special auxiliary relay which is always on (MELSEC-F)
M8000 More Details >>
- No:22258
- Release Date:2018/08/30 13:48
- Category: MELSEC-F Series , Engineering Software , Main Unit
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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
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Scan time while operation of a programmable controller CPU is being monitored using GX Works2
Scan time displayed on GX Works2 is the maximum scan time of the monitor target programmable controller CPU. To check current scan time, monitor the data in... More Details >>
- No:24779
- Release Date:2019/02/27 15:58
- Category: MELSEC-F Series , Engineering Software , Main Unit
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Meanings of the sink input/source input
The sink input connects to a negative common for 24 V DC. The source input connects to a positive common. The sink input is generally used in Japan and No... More Details >>
- No:22254
- Release Date:2018/08/30 13:48
- Category: MELSEC-F Series , Main Unit , I/O Extension
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How to change the keeping (latched device data) range (FX3G/FX3GC)
The keeping (latched device data) range is fixed and cannot be changed in parameters. (Reference) [When an optional battery is not used] The keeping ran... More Details >>
- No:22260
- Release Date:2018/08/30 13:48
- Update:2019/02/19 11:52
- Category: MELSEC-F Series , Engineering Software , Main Unit , Accessories
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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
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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
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Communications using the built-in USB port of the FX3 series
When you connect the built-in USB port of the FX3 series to the personal computer for the first time, you need to install the USB driver into the personal co... More Details >>
- No:22273
- Release Date:2018/08/30 13:48
- Category: MELSEC-F Series , Engineering Software , Main Unit , Network/Communication
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Thecomment may not have been written tothe programmable controller. Or, the comment display setting may be required on the GX Works2 side. [Writing a com... More Details >>
- No:24681
- Release Date:2019/02/22 11:40
- Update:2019/02/22 14:15
- Category: MELSEC-F Series , Engineering Software , Main Unit
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