The maximum length between a hub and a node is 100 m. The max. length connectable to a hub is 200m.When repeater hubs ar

The built-in Ethernet port in the L series is compatible only with the QnA-compatible 3E frame. The 4E frame is not supp

The KeepAlive setting for the built-in Ethernet port in the L series is fixed. The setting is unchangeable.

For the built-in Ethernet port in the L series CPU, the TCP retransmission timer setting is fixed and unchangeable. The

The following settings are required for the "Open Setting" for the number of connected external devices.- Protocol: "UDP

You can check the connection to the hub with bit 10 of the special register SD1288. When bit 10 of the SD1288 is on, the

GX Configurator-MB does not need to be purchased. Parameters can be set using GX Works2 alone.

The capacity file registers currently have can be checked in the file register setting section ([PLC Parameter] -> [P

An SRAM card can increase file register capacity.1MB/2MB/4MB/8MB SRAM cards are available.The numbers of file registers

Personal computers have different MAC addresses and an Ethernet module hold a MAC address. Hence the MAC address that th

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Programmable Controllers MELSEC

MELSEC iQ-R Series(45)
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FAQ within [ Programmable Controllers MELSEC ]

551-560 of Total 983

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Cable length to connect to built-in Ethernet port in LCPU

The maximum length between a hub and a node is 100 m. The max. length connectable to a hub is 200m.When repeater hubs are used in cascade connection, the max... More Details >>
- No：22781
- Release Date：2018/09/03 17:30
- Category： MELSEC-L Series
Use of 4E frame for built-in Ethernet port of LCPU

The built-in Ethernet port in the L series is compatible only with the QnA-compatible 3E frame. The 4E frame is not supported. More Details >>
- No：22761
- Release Date：2018/09/03 17:30
- Category： MELSEC-L Series
KeepAlive setting for built-in Ethernet port in LCPU

The KeepAlive setting for the built-in Ethernet port in the L series is fixed. The setting is unchangeable. More Details >>
- No：22760
- Release Date：2018/09/03 17:30
- Category： MELSEC-L Series
TCP retransmission timer setting for built-in Ethernet port LCPU

For the built-in Ethernet port in the L series CPU, the TCP retransmission timer setting is fixed and unchangeable. The retransmission occurs six times. The... More Details >>
- No：22745
- Release Date：2018/09/03 17:29
- Update：2018/09/21 17:52
- Category： MELSEC-L Series
LCPU built-in Ethernet port setting when using the simple PLC communication function

The following settings are required for the "Open Setting" for the number of connected external devices.- Protocol: "UDP"- Open System: "MELSOFT connection" More Details >>
- No：22739
- Release Date：2018/09/03 17:29
- Category： MELSEC-L Series
Detecting the connection between a built-in Ethernet port QCPU and hub

You can check the connection to the hub with bit 10 of the special register SD1288. When bit 10 of the SD1288 is on, the QCPU is in connection with the hub. More Details >>
- No：22712
- Release Date：2018/09/03 17:29
- Category： MELSEC-Q Series
GX Configurator-MB for the MODBUS(R) interface module

GX Configurator-MB does not need to be purchased. Parameters can be set using GX Works2 alone. More Details >>
- No：22701
- Release Date：2018/09/03 17:29
- Category： MELSEC-Q Series
How to check the capacity of the file registers in use

The capacity file registers currently have can be checked in the file register setting section ([PLC Parameter] -> [PLC File] tab). More Details >>
- No：22694
- Release Date：2018/09/03 17:29
- Update：2018/09/21 14:19
- Category： MELSEC-Q Series
How to increase file register capacity

An SRAM card can increase file register capacity.1MB/2MB/4MB/8MB SRAM cards are available.The numbers of file registers that can be used with a 1MB, 2MB, 4MB... More Details >>
- No：22687
- Release Date：2018/09/03 17:29
- Category： MELSEC-Q Series
Ethernet communication after the replacement of an external device

Personal computers have different MAC addresses and an Ethernet module hold a MAC address. Hence the MAC address that the Ethernet module currently holds is ... More Details >>
- No：22665
- Release Date：2018/09/03 17:29
- Category： MELSEC-Q Series

551-560 of Total 983

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