Replace the battery when the programmable controller is powered off. For example, for the FX3U/FX3UC series, data will

Launch GX Works2, select [Project] -> [Open Other Project], and read the data created with GX Developer. Copy the co

Select [Online] -> [Read from PLC] from the menu and check "Device Memory" in the file list in the window and then ex

The error code "2100" is "SP.UNIT LAY ERR.". This error may be caused by one of the following factors. (1) In the I/O

This function allows data communications between specified devices at the specified timing, using the built-in Ethernet.

Check the following signals. • Start accept flag (M2001 to M2032) • Positioning start complete signal (M4000+20n (n: Axi

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

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

The Web server function allows you to log in from up to four devices at the same time. You can't log in from the fifth m

The constant scan initial value in the simulation function is 100ms. Thus, the value of SM410(0.1sec. clock) is OFF in e

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FAQ within [ Controllers ]

951-960 of Total 1123

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Battery replacement during power-on

Replacethe battery when the programmable controller is powered off. For example, forthe FX3U/FX3UC series, data will be held for about 20 seconds after be... More Details >>
- No：22257
- Release Date：2018/08/30 13:48
- Update：2019/02/19 11:54
- Category： MELSEC-F Series , Main Unit , Accessories
How to copy comments from GX Developer to GX Works2

Launch GX Works2, select [Project] -> [Open Other Project], and read the data created with GX Developer. Copy the comment from the list of device comme... More Details >>
- No：22526
- Release Date：2018/09/03 17:28
- Update：2018/09/20 14:32
- Category： MELSEC-Q Series
How to read the device memory in GX Works2

Select [Online] -> [Read from PLC] from the menu and check "Device Memory" in the file list in the window and then execute PLC read. More Details >>
- No：22621
- Release Date：2018/09/03 17:29
- Category： MELSEC-Q Series
Error code "2100" in QCPU

The error code "2100" is "SP.UNIT LAY ERR.". This error may be caused by one of the following factors. (1) In the I/O assignment setting of the PLC parame... More Details >>
- No：22650
- Release Date：2018/09/03 17:29
- Update：2018/09/21 11:47
- Category： MELSEC-Q Series
Simple PLC communication function

This function allows data communications between specified devices at the specified timing, using the built-in Ethernet. Device data such as production data ... More Details >>
- No：22737
- Release Date：2018/09/03 17:29
- Category： MELSEC-L Series
Virtual servomotor

Check the following signals. • Start accept flag (M2001 to M2032) • Positioning start complete signal (M4000+20n (n: Axis No.-1)) More Details >>
- No：23552
- Release Date：2018/09/14 15:09
- Update：2023/02/08 10:39
- Category： Q17nDSCPU , Q17nDCPU , Q170MSCPU , Q170MCPU , Q17nHCPU , Q17nCPUN
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
- Category： MELSEC-F Series , Engineering Software , Main Unit
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
- Category： MELSEC-F Series , Main Unit , Network/Communication
Regarding simultaneous access to Web Server function

The Web server function allows you to log in from up to four devices at the same time. You can't log in from the fifth machine. More Details >>
- No：39330
- Release Date：2023/02/14 09:06
- Category： MELSEC iQ-F Series , CPU Module , Network/Communication
Behavior of special relay in simulation

The constant scan initial value in the simulation function is 100ms. Thus, the value of SM410(0.1sec. clock) is OFF in each scan. To turn ON/OFF SM410, set ... More Details >>
- No：22521
- Release Date：2018/09/03 17:28
- Update：2018/09/20 14:23
- Category： MELSEC-Q Series

951-960 of Total 1123

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