The amounts of data transmitted or received are not limited as R_WRITE instruction/R_READ instruction but by the capacit

One M_OPEN consumes one port of SPORT_NO, which is the local port. RPORT_NO is the port of the other end of the commun

The Web module requires Java software only for trend graph display. The cause is probably that the PC you are using does

In the parameter setting of the Ethernet module in the system definition, set the 'Server FTP command watch timer value'

The IP address and port standard No. of the self station of the Ethernet module are stored in the internal ROM of the Et

The following are necessary. 1) Hardware Ethernet interface module (NP1L-ET1) or CPU module with built-in E

The file transfer error occurs because the module driver is downloaded with the Ethernet module not recognized by the CP

The IP address of the Ethernet module will become effective when the power supply is turned off once and then turned on

It is possible with the Ethernet module software version V36 or later by using the F_READ (read)/F_WRITE (write) FB.

The SPH system automatically inherits information such as the communication ports and reopening processing is not requir

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GLOBAL > PLC > SPH > Communication (Ethernet)

Latest FAQ

When I use the Ethernet module (NP1L-ET1), can I use a same message port No. (SPORT_NO) to establish multiple connections (use multiple M_OPEN)?
I use the Ethernet module (NP1L-ET1/ET2) and using communication FB (M_OPEN). M_OPEN sets two ports of RPORT_NO and SPORT_NO. Does this mean that o...
When I forget the IP address of the WEB module (Type_ NP1L-WE1), can I change the IP from an external network?
During loader command communication of Ethernet, a port is closed after it has not been accessed from a personal computer for a certain period of t...
I use the Ethernet module (Type_NP1L-ET1). Is the IP address assigned automatically?

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FAQ within [ Communication (Ethernet) ]

1-10 of Total 25

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I want to read and write memory blocks with loader commands by using Ethernet to connect between SX. Is there any limitation to the amounts of data...

The amounts of data transmitted or received are not limited as R_WRITE instruction/R_READ instruction but by the capacity of the memory from/to which data ar... Show Detail
- No：1324
- Displayed Date：2023/04/25 19:00
I use the Ethernet module (NP1L-ET1/ET2) and using communication FB (M_OPEN). M_OPEN sets two ports of RPORT_NO and SPORT_NO. Does this mean that o...

One M_OPEN consumes one port of SPORT_NO, which is the local port. RPORT_NO is the port of the other end of the communication seen from the SX. Show Detail
- No：1643
- Displayed Date：2023/04/25 19:00
I'm using the Web module (Type_ NP1L-WE1) and only the trend graph cannot be displayed properly on the PC. What is a possible cause?

The Web module requires Java software only for trend graph display. The cause is probably that the PC you are using does not have Java installed. Show Detail
- No：1308
- Displayed Date：2023/04/25 19:00
During loader command communication of Ethernet, a port is closed after it has not been accessed from a personal computer for a certain period of t...

In the parameter setting of the Ethernet module in the system definition, set the 'Server FTP command watch timer value' to 0. The port is not closed even if... Show Detail
- No：1612
- Displayed Date：2023/04/25 19:00
- Updated DTM：2023/06/09 13:59
After I replaced an Ethernet module (Type_NP1L-ET1/ET2), it cannot communicate with the target device. What is a possible cause?

The IP address and port standard No. of the self station of the Ethernet module are stored in the internal ROM of the Ethernet module. After replacing an Eth... Show Detail
- No：1590
- Displayed Date：2023/04/25 19:00
What is necessary for MODBUS_TCP communication between SPH and an external device?

The following are necessary. 1) Hardware Ethernet interface module (NP1L-ET1) or CPU module with built-in Ethernet (SPH2000/3000 series CPU types w... Show Detail
- No：1470
- Displayed Date：2023/04/25 19:00
- Updated DTM：2023/06/09 13:30
When I use an Ethernet module (Type_ NP1L-ET□) to download the system definitions and module driver, a file transfer error is generated. Why?

The file transfer error occurs because the module driver is downloaded with the Ethernet module not recognized by the CPU. For the CPU to recognize the Ethe... Show Detail
- No：1404
- Displayed Date：2023/04/25 19:00
The D300win cannot connect to the SX via the Ethernet module.

The IP address of the Ethernet module will become effective when the power supply is turned off once and then turned on again after the module driver is dow... Show Detail
- No：1434
- Displayed Date：2023/04/25 19:00
Is it possible to read and write the IP address and port reference number of an Ethernet module (Type_ NP1L-ET1) by using a user application?

It is possible with the Ethernet module software version V36 or later by using the F_READ (read)/F_WRITE (write) FB. After writing, the power (or reset) o... Show Detail
- No：1370
- Displayed Date：2023/04/25 19:00
- Updated DTM：2023/06/13 15:42
I use an Ethernet module (Type_ NP1L-ET□) in a redundant system. Is processing such as reopening of the Ethernet required at the time of redundancy...

The SPH system automatically inherits information such as the communication ports and reopening processing is not required. Show Detail
- No：1292
- Displayed Date：2023/04/25 19:00