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Programmable Controllers MELSEC
FAQ within [ Programmable Controllers MELSEC ]
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COMMENT to disappear after a PLC type change
Copy the COMMENT into the MAIN of comments by program before changing the PLC type.The basic model QCPU cannot deal with common comments. More Details >>
- No:22625
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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GX Works2's compatibility with Monitor (write mode)
From version 1.62Q, GX Works2 supports Monitor (write mode). Pressing Shift+F4 allows an online change. More Details >>
- No:22612
- Release Date:2018/09/03 17:29
- Update:2018/09/20 18:18
- Category: MELSEC-Q Series
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PLC write not possible due to memory overload
If comments cannot be stored in the program memory, write them in the standard ROM or a memory card. Calculate the memory capacity in GX Works2 or GX Develo... More Details >>
- No:22595
- Release Date:2018/09/03 17:29
- Update:2018/09/20 17:49
- Category: MELSEC-Q Series
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Behavior of sequence program in event of momentary power failure in QCPU
(1) When a momentary power failure occurs for a period not longer than the allowable momentary power failure time When the momentary power failure occurs, t... More Details >>
- No:22587
- Release Date:2018/09/03 17:29
- Update:2018/09/20 17:41
- Category: MELSEC-Q Series
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The duplicated coil error is detected when SET instruction and RST instruction use the same device. More Details >>
- No:22534
- Release Date:2018/09/03 17:28
- Category: MELSEC-Q Series
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Regarding 2-axis synchronous control
FX5-40SSC-S(Simple motion) or FX5-80SSC-S(Simple motion), FX5-40SSC-G (CC-Link IE TSN Motion) or FX5-80SSC-G (CC-Link IE TSN Motion) supports the synchrous c... More Details >>
- No:22325
- Release Date:2018/08/30 13:55
- Update:2023/06/23 10:31
- Category: MELSEC iQ-F Series , Motion/Positioning
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Regarding the link refresh settings of FX5-CCL-MS
It is possible to use latch devices or I/O devices (X/Y) for link refresh devices. However, when using I/O devices (X/Y), use I/O numbers (such as X1000 ~/Y... More Details >>
- No:22308
- Release Date:2018/08/30 13:55
- Update:2023/06/23 10:37
- Category: MELSEC iQ-F Series , CPU Module , Engineering Software , Network/Communication
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Regarding Recommended Substitute Models for FX3G-CNV-ADP
The FX5 CPU modules allows you to add an expansion adapter without using a connector conversion adapter. Therefore, there is no Recommended Substitute Models... More Details >>
- No:44875
- Release Date:2025/03/18 10:27
- Category: MELSEC iQ-F Series , CPU Module
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Regarding whether ladder monitoring is enabled by the Web server function
You cannot use the ladder monitor with the Web server function. With the Web server function, it is possible to monitor the device value, test the device (w... More Details >>
- No:44873
- Release Date:2025/03/18 10:23
- Category: MELSEC iQ-F Series , CPU Module
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Regarding connector conversion module differences
The FX5-CNV-IF is an additional cable type. ・FX5U/FX5UJ CPU Modules are supported. ・Used to connect an extension connector type module to an extension ca... More Details >>
- No:44351
- Release Date:2024/03/27 15:45
- Category: MELSEC iQ-F Series , CPU Module
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