SM0 turns ON when self-diagnostic checks detect an error or when an annunciator turns ON.SM1 turns ON when self-diagnost

The operation is not guaranteed. Please select the extension blocks and units from FX2N series.

The maximum number of connections for the simple CPU communication function of FX5 CPU module is 16 for FX5U/FX5UC CPU m

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

"E" represents AC power supply and "D" represents DC power supply. The alphabets following "E" and "D" represent output

It is cleared by eliminating the cause of the error during detection and turning on SM50. For the error codes that can b

In 8-bit mode, the upper 8 bits of transmitted and received data are ignored and only the lower 8 bits are valid data.

"PC Parameter" in GX Works2 is "Parameter" in GX Works3. You can set the I/O assignment from "Module Configuration" or "

Since they are octal, the number after X7 is X10 and after X77 is X100.

There is no dedicated instruction to drive JOG. Use PLSV (variable speed operation) when operating JOG.

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Programmable Controllers MELSEC

MELSEC iQ-R Series(45)
MELSEC iQ-F Series(672)

CPU Module(185)
I/O Module(5)
Analog(16)
High-Speed Counter(14)
Motion/Positioning(11)
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Engineering Software(129)

FAQ within [ Programmable Controllers MELSEC ]

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Difference between SM0 and SM1

SM0 turns ON when self-diagnostic checks detect an error or when an annunciator turns ON.SM1 turns ON when self-diagnostic checks detect an error. More Details >>
- No：22632
- Release Date：2018/09/03 17:29
- Category： MELSEC-Q Series
Extension blocks and units that can be used in the FX3U series

The operation is not guaranteed. Please select the extension blocks and units from FX2N series. More Details >>
- No：24935
- Release Date：2019/04/18 14:24
- Category： MELSEC-F Series , Main Unit , I/O Extension
Regarding maximum number of connections for the simple CPU communication function

The maximum number of connections for the simple CPU communication function of FX5 CPU module is 16 for FX5U/FX5UC CPU module and 8 for FX5UJ/FX5S CPU module... More Details >>
- No：40032
- Release Date：2023/08/24 15:37
- Category： MELSEC iQ-F Series , CPU Module , Network/Communication
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
Models of the MELSEC-F series main units

"E" represents AC power supply and "D" represents DC power supply. The alphabets following "E" and "D" represent output types. "S" represents replay output... More Details >>
- No：24776
- Release Date：2019/02/27 15:35
- Category： MELSEC-F Series , Main Unit
Regarding clearing error with SM50

It is cleared by eliminating the cause of the error during detection and turning on SM50. For the error codes that can be cleared on the SM50, refer to the ... More Details >>
- No：39292
- Release Date：2023/02/13 15:37
- Category： MELSEC iQ-F Series , CPU Module
Regarding differences between 8 bit and 16 bit modes for non-protocol communication

In 8-bit mode, the upper 8 bits of transmitted and received data are ignored and only the lower 8 bits are valid data. In 16 bit mode, send/receive data i... More Details >>
- No：39363
- Release Date：2023/02/15 13:04
- Category： MELSEC iQ-F Series , CPU Module , Network/Communication
I/O assignment of PLC parameters with GX Works3

"PC Parameter" in GX Works2 is "Parameter" in GX Works3. You can set the I/O assignment from "Module Configuration" or "System Parameter". <Setting fr... More Details >>
- No：22475
- Release Date：2018/09/03 17:28
- Update：2018/09/19 14:42
- Category： MELSEC iQ-R Series
Input numbers of the FX programmable controllers

Since they are octal, the number after X7 is X10 and after X77 is X100. More Details >>
- No：25000
- Release Date：2019/04/23 10:39
- Category： MELSEC-F Series , Engineering Software , Main Unit
Regarding dedicated instruction for JOG operation

There is no dedicated instruction to drive JOG. Use PLSV (variable speed operation) when operating JOG. More Details >>
- No：44355
- Release Date：2024/03/27 15:50
- Category： MELSEC iQ-F Series , CPU Module , Motion/Positioning

811-820 of Total 1023

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