NP1L-RS1/RS4/RS5 support RS-485. Can I use them for RS-422 devices?
Yes, you can use NP1L-RS1/RS4/RS5 for RS-422 devices. RS-485 is upper compatible with RS-422. There are two connection types for RS-422 devices: 2-wire conne... Show Detail
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
For an analog input range (1 to 5 V or 4 to 20 mA), a line breakage detection function is provided. An input voltage of 0.92 V or lower for the 1 to 5 V ran... Show Detail
_F_WRITE_CSV_DINT' may be influenced by the file search time depending on the number of files in the CF. The time it takes for 100 (200-word) DINT data to b... Show Detail
For PID control by using a PID FB package, how should I set the various parameters?
For setting parameter values (such as P, I and D), it is possible to_ (1) Set the data within the user application (2) Use 'PID FB parameter support ut... Show Detail
When the common memory system is used, this can be achieved by handshaking with an application using part of the link memory. Without handshaking, it is not... Show Detail
To enable the 'output value reference input,' the output module must be actually mounted. If the output module is set as 'unimplemented' in the system config... Show Detail
I cannot download a project to the user ROM card inserted in the CPU. What is a possible cause?
This problem is probably caused by the following reasons: [For SPH300/2000/3000 series] 1) The CPU mode selection switch is not set at the 'UROM-TERM' pos... Show Detail
Is the backup battery consumed while the control power supply of the CPU is active?
The backup battery is intended to back up the data memory (SRAM) inside of the CPU. While the system is turned on, the power is supplied from the control pow... Show Detail
You can access the memory from a PC by setting the general-purpose communication module (Type_ NP1L-RS2) to 'Loader' mode. Various loader commands have been... Show Detail
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