When data is sent from the RS-422/485 interface through RS-485 (2-wire type) communication and the same data comes back

Turn off the SD memory card switch and check that the LED indicator is off before insertion or removal of an SD memory c

Uncheck "Check battery", an item of "Error Check", in the [PLC RAS setting] ([PLC Parameter] -> [PLC RAS setting]).

The RS-232 cable should meet RS-232 standards and not exceed 15 m in length.The RS-422/485 cable should meet specificati

Select [Tool] -> [Options] -> [Program Editor] -> "Ladder/SFC"-> "Comment" and change "Reference/Reflection

The contents of the standard RAM and latch devices are not erased if the battery replacement is completed within three m

- C Controller module: Programs are created using C and C++ languages. The programs run based on each task and par

"Module Parameter" of the CPU module is the setting window. <Setting a built-in Ethernet port> [Navigation Win

You can change the destination in [Online] -> [Specify Connection Destination]. Change the destination depending on

The following programming languages are supported. ・Ladder diagram (LD) ・Structured text (ST) ・Function block diagram

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(1702)

MELSEC iQ-R Series(45)
MELSEC iQ-F Series(643)
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 ]

691-700 of Total 1110

prev 70 / 111page next

Receiving back (echoing back) the same data sent from QJ71C24N

When data is sent from the RS-422/485 interface through RS-485 (2-wire type) communication and the same data comes back to RDA or RDB, we call it echo back. ... More Details >>
- No：23000
- Release Date：2018/09/03 17:31
- Update：2018/09/25 17:44
- Category： Network related products
Precautions for insertion and removal of SD memory card

Turn off the SD memory card switch and check that the LED indicator is off before insertion or removal of an SD memory card. More Details >>
- No：22818
- Release Date：2018/09/03 17:30
- Category： MELSEC-L Series
Battery-less operation

Uncheck "Check battery", an item of "Error Check", in the [PLC RAS setting] ([PLC Parameter] -> [PLC RAS setting]). More Details >>
- No：22681
- Release Date：2018/09/03 17:29
- Update：2018/09/21 14:12
- Category： MELSEC-Q Series
Recommended cables for MODBUS(R) interface module QJ71MB91

The RS-232 cable should meet RS-232 standards and not exceed 15 m in length.The RS-422/485 cable should meet specifications described in the following manual... More Details >>
- No：22566
- Release Date：2018/09/03 17:29
- Category： MELSEC-Q Series
Inputting device comments in GX Works2

Select [Tool] -> [Options] -> [Program Editor] -> "Ladder/SFC"-> "Comment" and change "Reference/Reflection Target for Device Comment" from "Glob... More Details >>
- No：22559
- Release Date：2018/09/03 17:29
- Category： MELSEC-Q Series
Battery replacement for universal model QCPU

The contents of the standard RAM and latch devices are not erased if the battery replacement is completed within three minutes, which is the backup power tim... More Details >>
- No：22558
- Release Date：2018/09/03 17:29
- Category： MELSEC-Q Series
Difference between C Controller module and programmable controller CPU module

- C Controller module: Programs are created using C and C++ languages. The programs run based on each task and parallel processing of multiple tasks base... More Details >>
- No：22542
- Release Date：2018/09/03 17:28
- Update：2018/09/20 15:05
- Category： MELSEC-Q Series
Built-in Ethernet function setting window of MELSEC iQ-R series CPU modules

"Module Parameter" of the CPU module is the setting window. <Setting a built-in Ethernet port> [Navigation Window]-> [Parameter]-> [CPU Modul... More Details >>
- No：22488
- Release Date：2018/09/03 17:28
- Update：2018/09/20 09:40
- Category： MELSEC iQ-R Series
How to change the specified connection destination of GX Works3

You can change the destination in [Online]-> [Specify Connection Destination]. Change the destination depending on the communication path to be used. Yo... More Details >>
- No：22472
- Release Date：2018/09/03 17:28
- Update：2018/09/19 14:31
- Category： MELSEC iQ-R Series
Regarding supported programming languages

The following programming languages are supported. ・Ladder diagram (LD) ・Structured text (ST) ・Function block diagram (FBD/LD) More Details >>
- No：44972
- Release Date：2025/05/08 09:06
- Category： MELSEC MX Controller MX-F Model

691-700 of Total 1110

Inquiries

page top