To perform battery-less operation in the FX3U/FX3UC series, set parameters using GX Works2(or GX Developer). Please ref

GX Works3 and the MELSEC iQ-R series do not use actual devices as automatic assignment devices of local labels. The loca

SM400 and SM8000. ※FX compatible area（SM8000～, SD8000～） is available for the special relay and special device.

For your safety, programmable controllers must be grounded. Incomplete common grounding within the control panel or com

The file register is used for storing predetermined values (such as specification values for product inspection). Other

In the FX3U/FX3UC series, the bit specification of the data register is possible. (Example) D0.7→7th bit in D0 For the

In the FX programmable controllers (FX3U/FX3UC series), a bit in a word device can be specified in a program. It can be

The following shows the initialization procedure. (1) Turn OFF the PLC ready flag. (2) Turn ON "[Cd.2] Parameter initial

The LCPU error code 4116 is displayed when a built-in I/O instruction that is disabled in the parameter setting is execu

32 stations can be connected when RS-485 port is used and only 1 station can be connected when RS-232 port is used.

FAQ

FAQAbout Products

Font Size
S
M
L

FAQ > Controllers

FAQ

Inquiries

Keyword Search

You can search two or more words separated by a space.

 AND : Put a space between the words in a keyphrase.
 OR  : Add a vertical bar ( | ) between the words in a keyphrase.
 NOT : Add a minus sign ( - ) followed by the words that you would like to exclude.

Result Type

Text Search

Controllers

Programmable Automation Controllers MELSEC(28)

MELSEC MX Controller MX-R Model
MELSEC MX Controller MX-F Model(28)
MELSEC MX Controller Engineering Software
Programmable Controllers MELSEC(1731)

MELSEC iQ-R Series(45)
MELSEC iQ-F Series(672)
MELSEC-Q Series(213)
MELSEC-L Series(105)
MELSEC-F Series(457)
Network related products(110)
Engineering Software(129)

Motion Controllers(414)

MELSEC iQ-R Series(73)
MELSEC iQ-F Series(29)
MELSEC-Q Series(247)
MELSEC-L Series(64)
Engneering software(1)

FAQ within [ Controllers ]

141-150 of Total 1123

prev 15 / 113page next

How to set battery-less operation(FX3U/FX3UC)

To perform battery-less operation in the FX3U/FX3UC series, set parameters using GX Works2(or GX Developer). Please refer to the following manual for furt... More Details >>
- No：22277
- Release Date：2018/08/30 13:48
- Update：2019/02/19 08:47
- Category： MELSEC-F Series , Engineering Software , Main Unit , Accessories
How to check devices assigned to labels of GX Works3

GX Works3 and the MELSEC iQ-R series do not use actual devices as automatic assignment devices of local labels. The local labels use "label areas" in the "d... More Details >>
- No：22486
- Release Date：2018/09/03 17:28
- Update：2018/09/20 09:30
- Category： MELSEC iQ-R Series
Regarding the function of a special relay.

SM400 and SM8000. ※FX compatible area（SM8000～, SD8000～） is available for the special relay and special device. More Details >>
- No：22288
- Release Date：2018/08/30 13:55
- Update：2023/06/23 10:09
- Category： MELSEC iQ-F Series , CPU Module
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
Differences between the file register and other registers

The file register is used for storing predetermined values (such as specification values for product inspection). Other registers are used as a temporary st... More Details >>
- No：22256
- Release Date：2018/08/30 13:48
- Category： MELSEC-F Series , Engineering Software , Main Unit
Turning on a bit in the data register

In the FX3U/FX3UC series, the bit specification of the data register is possible. (Example) D0.7→7th bit in D0 For the other types of MELSEC-F programmable... More Details >>
- No：22275
- Release Date：2018/08/30 13:48
- Category： MELSEC-F Series , Engineering Software , Main Unit
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
Parameter initialization

The following shows the initialization procedure. (1) Turn OFF the PLC ready flag. (2) Turn ON "[Cd.2] Parameter initialization request". Set "1" to the buff... More Details >>
- No：23603
- Release Date：2018/09/14 15:09
- Category： RD77MS , RD77GF , FX5SSC
Remedy for LCPU error "4116"

The LCPU error code 4116 is displayed when a built-in I/O instruction that is disabled in the parameter setting is executed. Check for the parameter settings... More Details >>
- No：22807
- Release Date：2018/09/03 17:30
- Category： MELSEC-L Series
Regarding the maximum number of connections for MODBUS communication

32 stations can be connected when RS-485 port is used and only 1 station can be connected when RS-232 port is used. More Details >>
- No：22324
- Release Date：2018/08/30 13:55
- Update：2023/06/23 10:49
- Category： MELSEC iQ-F Series , CPU Module , Network/Communication

141-150 of Total 1123

Inquiries

page top