In the system definition, group-type slave stations in any I/O configuration are registered as 'DeviceNet capsule.' In a

While 'DTR_ terminal ready' can be used with RS-232C, this control line is not present for RS-485. If no response is

A 'client' is a device that collects data. Since the PLC is a device from which data is collected, there is no OPC clien

Yes, a CPU is necessary. In the case of a system with no CPU, the input status LED does not work even if signals are ext

R_STS = 1 means 'send buffer overflow' detected by the general-purpose communication module. Check the communication for

Selecting the DCE mode for the communication parameter_ DCE designation keeps DSR always on.

The received data is cleared to 0. Therefore, be sure not to read (ignore) the data by application program. Reopening th

The MICREX-SX does not include a communication module having interfaces with Mitsubishi's original networks, MELSEC-NET/

Once an error history is generated, it is retained internally within the FL-net module and is cleared when the power is

They are retained. Note, however, that they are cleared if the power of the FL-net module is turned off.

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GLOBAL > PLC > SPH > Communication (Others)

Latest FAQ

When I write parameter to LonWorks module (NP1L-LW1) using support tool for a LonWorks (NP4N-LNDF), what is the required cable?
When using a communication module (NP1L-RS1/RS2/RS3/RS4/RS), the FB outputs R_STS 'C0' (Hardware error detected) during receiving. In this case, ho...
I use DeviceNet interface module (NP1L-RD1) under DeviceNet master (NP1L-DN1). How can I specify NP1L-RD1 in the system definition?
In the communication module (NP1L-RS1/RS2/RS3/RS4/RS5), is it possible to change communication parameter such as fixed length to variable length af...
With the FL-net module (NP1L-FL1/FL2/FL3), is there any way to confirm that the data sent from the node-A have actually been received by the node-B?

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FAQ within [ Communication (Others) ]

11-20 of Total 53

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I use DeviceNet interface module (NP1L-RD1) under DeviceNet master (NP1L-DN1). How can I specify NP1L-RD1 in the system definition?

In the system definition, group-type slave stations in any I/O configuration are registered as 'DeviceNet capsule.' In addition, the numbers of input and out... Show Detail
- No：1644
- Displayed Date：2023/04/25 19:00
With communication using RS-485 of a general-purpose communication module (Type_ NP1L-RS□), is there any means to detect a line disconnection?

While 'DTR_ terminal ready' can be used with RS-232C, this control line is not present for RS-485. If no response is received while data are exchanged, re... Show Detail
- No：1322
- Displayed Date：2023/04/25 19:00
- Updated DTM：2023/06/13 15:20
There is an OPC server that supports the MICREX-SX (communication middleware, Type_ NP4N-MDLW). Is there an OPC client?

A 'client' is a device that collects data. Since the PLC is a device from which data is collected, there is no OPC client. Show Detail
- No：1553
- Displayed Date：2023/04/25 19:00
Is a CPU necessary to check I/O? Input signals to the input terminals of an input module are turned ON, however, the input status LED remains OFF.

Yes, a CPU is necessary. In the case of a system with no CPU, the input status LED does not work even if signals are externally input into the input module. Show Detail
- No：1537
- Displayed Date：2023/04/25 19:00
When the MODBUS master standard expansion FB _C_modm operates, the receive status becomes R_STS = 1. This is not shown in the receive status list. ...

R_STS = 1 means 'send buffer overflow' detected by the general-purpose communication module. Check the communication format, communication interval and other... Show Detail
- No：1607
- Displayed Date：2023/04/25 19:00
When does the port status_ DSR (data set ready) in a structure variable_ RAS of the non-procedural standard expansion FB for communication remain on?

Selecting the DCE mode for the communication parameter_ DCE designation keeps DSR always on. Show Detail
- No：1297
- Displayed Date：2023/04/25 19:00
When using a communication module (NP1L-RS1/RS2/RS3/RS4/RS), the FB outputs R_STS 'C0' (Hardware error detected) during receiving. In this case, ho...

The received data is cleared to 0. Therefore, be sure not to read (ignore) the data by application program. Reopening the FB (turning the 'OPEN' terminal fro... Show Detail
- No：1672
- Displayed Date：2023/04/25 19:00
Is it possible to establish direct communication between Fuji Electric's PLCs and the original networks of Mitsubishi sequencers (MELSEC), NET/B, N...

The MICREX-SX does not include a communication module having interfaces with Mitsubishi's original networks, MELSEC-NET/B or NET/10 or CC-LINK. Alternativel... Show Detail
- No：1546
- Displayed Date：2023/04/25 19:00
How does the FL-net module (Type_ NP1L-FL1/FL2/FL3) clear the error history recorded in each memory?

Once an error history is generated, it is retained internally within the FL-net module and is cleared when the power is turned off and turned on again or whe... Show Detail
- No：1567
- Displayed Date：2023/04/25 19:00
When the communication cable is disconnected with an FL-net module (Type_ NP1L-FL1/FL2/FL3), are the FL-net common memory data retained? Or are the...

They are retained. Note, however, that they are cleared if the power of the FL-net module is turned off. Show Detail
- No：1405
- Displayed Date：2023/04/25 19:00

11-20 of Total 53

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