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

(1) Standard CPU_ Access takes place when tasks end (synchronized with tasks). (2) High-performance CPU_ Access takes p

It is possible as long as the protocol is UDP/IP. In the M_OPEN FB, specify 255.255.255.255 as the IP address to be set

Input an arbitrary address. This setting is ignored for the unpassive mode.

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

Up to 4 units can be connected in 1 configuration (on 1 SX bus). Note, however, that they must be configured so that th

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

The general-purpose communication function of Ethernet allows simplified broadcast communication. By using a CPU with b

The Loader command mode is fixed to the TCP/IP communication. UDP/IP communication is not supported.

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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) ]

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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
I use an Ethernet module (Type_ NP1L-ET1/ET2) to read/write data from/to a PC in the loader command communication mode. At what time are data read ...

(1) Standard CPU_ Access takes place when tasks end (synchronized with tasks). (2) High-performance CPU_ Access takes place when a request is generated rega... Show Detail
- No：1300
- Displayed Date：2023/04/25 19:00
Is broadcast communication via Ethernet possible?

It is possible as long as the protocol is UDP/IP. In the M_OPEN FB, specify 255.255.255.255 as the IP address to be set for the 'communication destination s... Show Detail
- No：1415
- Displayed Date：2023/04/25 19:00
I understand that when data are received via an Ethernet network in the TCP/IP unpassive mode, requests from multiple nodes can be accepted. How ca...

Input an arbitrary address. This setting is ignored for the unpassive mode. Show Detail
- No：1378
- Displayed Date：2023/04/25 19:00
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
With an Ethernet module (Type_ NP1L-ET1/ET2), is the protocol for fixed buffer communication the same as that of MICREX-F?

Yes, it is the same. Show Detail
- No：1377
- Displayed Date：2023/04/25 19:00
How many units of Ethernet module (Type_ NP1L-ET□) can be used in a system?

Up to 4 units can be connected in 1 configuration (on 1 SX bus). Note, however, that they must be configured so that the total number of units of other comm... Show Detail
- No：1395
- Displayed Date：2023/04/25 19:00
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
Can I perform broadcast communication between CPU modules without using FL-net or P/PE-link module?

The general-purpose communication function of Ethernet allows simplified broadcast communication. By using a CPU with built-in Ethernet, you can build a bro... Show Detail
- No：1485
- Displayed Date：2023/04/25 19:00
I use the Ethernet module (Type_ NP1L-ET1/ET2) in the Loader command mode. Can I also use the UDP/IP communication?

The Loader command mode is fixed to the TCP/IP communication. UDP/IP communication is not supported. Show Detail
- No：1442
- Displayed Date：2023/04/25 19:00

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