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Programmable Controllers MELSEC
FAQ within [ Programmable Controllers MELSEC ]
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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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Intelligent function module settings in GX Works2
Intelligent function module settings can be made using GX Works2 alone.GX Works2 provides functions equivalent to various GX Configurator series functions.Fo... More Details >>
- No:22593
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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Setting of Q series registers whose data is held when a power failure occurs
Assign data registers (D) to Latch (1) or Latch (2) in the "Device Setting" window ([PLC Parameter] -> "Device Setting" window) to hold the data when a po... More Details >>
- No:22601
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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The corresponding operation depends on the counter type selected. (1) If "Linear Counter" is selected If the present counter value exceeds the upper limi... More Details >>
- No:22624
- Release Date:2018/09/03 17:29
- Update:2018/09/21 10:32
- Category: MELSEC-Q Series
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Q series device data held in the case of a power failure
The data in the devices assigned to Latch (1) or Latch (2) in the "Device Setting" window ([PLC Parameter] -> [Device Setting] window) is held when a pow... More Details >>
- No:22638
- Release Date:2018/09/03 17:29
- Update:2018/09/21 11:37
- Category: MELSEC-Q Series
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Accessing file registers from the built-in Ethernet port QCPU using A-compatible 1E frames
The QnUDE(H)CPU modules with serial numbers with upper 5 digits of "14112" or later indicate compatibility with the function. The accessible device range is ... More Details >>
- No:22645
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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This occurs because software required to display the Help window is not installed as standard in Windows7. Download the Windows Help program (WinHlp32.exe) f... More Details >>
- No:22674
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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Execution in a multi task environment
The QBF_Open ( ) function or mdOpen ( ) function is required for every task. Do not share the PATH acquired using an Open function with other tasks.Also, exe... More Details >>
- No:22678
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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Communication between Ethernet and FL-net
The communication between the Ethernet interface module and FL-net (OPCN-2) interface module cannot be established. More Details >>
- No:22683
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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SD memory cards used for Q24DHCCPU-V
Mitsubishi Electric's SD memory cards, which can be installed into Q24DHCCPU-V, are shown below. - NZ1MEM-2GBSD (memory capacity: 2Gbytes) - NZ1MEM-4GBSD (... More Details >>
- No:22711
- Release Date:2018/09/03 17:29
- Update:2018/09/22 08:58
- Category: MELSEC-Q Series
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