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

No, it does not support multicast transmission (sending/receiving). It does support broadcast transmission (sending/rec

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

Only the NP1L-ET1 supports both modes automatically (auto negotiation). Since the NP1L-ET2 is designed for 10Base5 (coa

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

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

The redundant function of the SPH Series provides redundancy only for the CPU and it cannot make the Ethernet redundant.

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

No, you can't. You can check the IP address by connecting the PC loader to the CPU module and monitoring the RAS informa

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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) ]

11-20 of Total 25

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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
Does the Ethernet module of the MICREX-SX (Type_ NP1L-ET1/ET2) support TCP/IP multicast transmission (sending/receiving)?

No, it does not support multicast transmission (sending/receiving). It does support broadcast transmission (sending/receiving). Show Detail
- No：1536
- 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
Which mode does the Ethernet module (Type_ NP1L-ET1/ET2) support, half or full?

Only the NP1L-ET1 supports both modes automatically (auto negotiation). Since the NP1L-ET2 is designed for 10Base5 (coaxial), it is fixed to half duplex. Show Detail
- No：1554
- Displayed Date：2023/04/25 19:00
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
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 it possible to have redundant (duplicate) Ethernet communication via the Ethernet interface module (Type_ NP1L-ET1/ET2) in a redundant system of...

The redundant function of the SPH Series provides redundancy only for the CPU and it cannot make the Ethernet redundant. Show Detail
- No：1392
- 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
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
When I forget the IP address of the WEB module (Type_ NP1L-WE1), can I change the IP from an external network?

No, you can't. You can check the IP address by connecting the PC loader to the CPU module and monitoring the RAS information of the fault diagnosis function. Show Detail
- No：1616
- Displayed Date：2023/04/25 19:00