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

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

I have connected the SX series CPU and the loader PC via USB. I have installed the USB driver and configured the communication settings, but commun...

There are two ways to connect a USB port of a personal computer and a CPU: 1) Connect to the USB port of the CPU (directly connected to the USB cable). 2) ... Show Detail

A nonfatal fault of the takt cycle monitoring error has occurred. What is a possible cause?

The takt cycle monitoring error is caused by the following factors_ (1) The preset takt cycle value specified in the system definition is shorter than the ac... Show Detail

Which is the signal that indicates pulse output completion on the positioning control module (Type_ NP1F-MP2)?

Pulse output completion is indicated by the 'Command pulse zero' signal. Normally, it is '1' to indicate the status of completion. When the number of pulses... Show Detail

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

I have lost the 'IP address' set with the WEB module (Type_ NP1L-WE1). How can I restore the factory setting?

It is not possible for the user to restore the factory setting. The module will have to be returned to the factory for initialization for a fee. Contact ou... Show Detail

With a counter module (NP1F-HC2), I use ２ counter FBs to control 2 channels. At system start-up, I set simultaneous preset operations for the 2 cha...

Check to make sure that_ (1) The channel specification (CH_SEL) is correct. (2) The FB instance names are not duplicated. (3) The preset command is given aft... Show Detail

When I turned on the positioning control module (Type_ NP1F-MP2/MA2) in the morning, the parameters were reset to the initial values. What is the f...

Since the parameter data area of the positioning control module (Type_ NP1F-MP2/MA2) operates on the RAM, it is always cleared when you turn off the module. ... Show Detail

When I compiled a project created in D300win, a warning message appeared saying 'The remainder capacity of the High speed PG memory has been decrea...

The SPH3000 series has 'high-speed program (high-speed PG) memory' area in the program memory. When you store a POU in this area, the POU execution speed be... Show Detail