Frequently Asked Questions

Is there an instruction that can be used in a subroutine to turn OFF an output bit that was turned ON in the main program?

What is the difference between the different operating modes of the Programmable Controller’s CPU Unit (i.e., PROGRAM mode, RUN mode, and MONITOR mode)?

Will interrupt tasks and interrupt subroutines work during overhead processing, I/O refreshing, and peripheral servicing if C200HS-INT01 Units are used in CS1 or CS200HX/HG/HE PLCs?

When I turn ON the power to Programmable Controllers, two ruled lines appear on the Programming Console display. What is the problem?

How will Programmable Controllers behave if the power supply voltage drops momentarily?

Is a battery for EEPROM memory backup required when using an EEPROM Memory Cassette with C200HS or C200HX/HG/HE Programmable Controllers?

Can NT-AL001-E RS-232C/RS-422 Link Adapter be used to convert the peripheral port on a CPU Unit of Programmable Controllers to RS-422?

Can I continue to use CQM1-CIF01 or CQM1-CIF02 Peripheral Port Connecting Cable that I am currently using with CQM1 even if I change to CQM1H Programmable Controllers?

Can the contents of the DM Area in CS1 or C200HX/HG/HE Programmable Controllers CPU Units be written to or read from a personal computer even when the CPU Unit is operating?

What problems will occur if I mistakenly set CQM1 Programmable Controllers as the device type when programming CPM2C Programmable Controllers using the SYSMAC Support Software?

How can we write CS1 Programmable Controller CPU I/O Memory Data from Personal Computer via RS-232C for CS1 (1:1 Communication)?

When we communicate with Personal Computer at Programmable Controller Peripheral Port, which is faster between Host Link and Tool bus?

Is there Programmable Controller simulation software?

How can we convert SYSMAC Support Software file SP1 by CX-Programmer FA Integrated Tool Package?

What is the difference between files with the extension .CXT and .CXP that can be converted using the CX-Programmer FA Integrated Tool Package conversion utility?

What support software does provide programming for the C500?

Can Factory Automation System Integrated Tool Package CX-One CX-Programmer and Drawing Tool for CX-One NS Series NS-Designer be connected with the PLCs by using a USB port in a PC?

What is the correct device type setting in the Support Soft Ware CX-Protocol when creating send/receive sequences for protocol macros for CQM1H Programmable Controllers?

What are FINS commands?

What is the best way to monitor I/O Memory Data of the CS1, C200HX/HG/HE, CPUs in Excel files?

Without using FINS Communication, can we access Programmable Controller I/O memory via Ethernet?

Is there a command that can write 100 words of data at once from a computer to the DM Area in the CPU Unit?

What part of I/O memory in the CPU Unit is allocated to CS1W-SCU21 Serial Communications Unit and CS1W-CLK21 Controller Link Unit?

When using a SYSMAC LINK Unit with a C1000H/C2000H PLC CPU Unit that already has a 3G2A5-LK201-EV1 Host Link Unit, is it necessary to replace 3G2A5-LK201-EV1 with a C500-LK203 Host Link Unit?

When I use C120-LK201-EV1 Host Link Units with C60P Programmable Controllers, a communications error occurs. Why?

Can a single sensor output be connected to multiple Programmable Controllers Input Units in parallel?

How can we use Programmable Controller Transistor Output distinguishing Sink Type or Source Type?

What is the allowable momentary power interruption time for the CQM1-PA203/-PA206/-PA216/-PD026 Power Supply Units?

How long are the contents of the DM Area in a CS1 Programmable Controllers or C200HX/HG/HE Programmable Controllers CPU Unit retained?

What is the difference between Group-2 High-density I/O Units and Special I/O Units used with the CS1 Programmable Controllers and C200HX/HG/HE Programmable Controllers?

When will the RUN output on C200HW-PA204R Power Supply Units for CS1 Programmable Controllers and C200HX/HG/HE Programmable Controllers turn ON?

Using CX-Programmer FA Integrated Tool Package, how can we connect Programmable Controller via Ethernet?

What is the difference between CS1W-NC[]13 Position Control Units and CS1W-MC221 Motion Control Units?

I have C200H-MC221 Motion Control Units connected to a servo driver from another company. What is required for the DRV X-Y Connector XSOUT signal (SEN signal), and what timing is required?

Can C200H Group-2 High-density I/O Units be used with C200H-RT201 SYSMAC BUS Remote I/O Slave Unit?

Can CQM1 Programmable Controllers programs be used on CQM1H Programmable Controllers without modification?

What are the conditions under which a C200HX/HG/HE Programmable Controllers will detect a power interruption when used with C200HW-PA204 Power Supply Units at 100 VAC?

How do I use the calendar and time data with CS1 Programmable Controllers and C200HX/HG/HE Programmable Controllers CPU Units?

Are there comparison instructions that can be used as the input condition for other instructions in a ladder program?

Is it possible to connect two CPM1A Programmable Controller Units with a RS-232C cross cable through an adapter, process an input to one CPM1A Unit, and output the result from the other CPM1A Unit?

When I used C120-LK201-EV1 Host Link Units with C20P Programmable Controllers a communications error occurred. How should I handle this?

Will a CS1-series PLC program be lost if its backup battery is not replaced after its 5-year service life has expired?

Can we send string data from the Programmable Controllers via the RS-232C interface?

Is there a restriction on the number of C200H PLC LINK Units that can be mounted when a Host Link Unit is also mounted? Is it different than with C1000H PLCs?

What upgrades were made to the Backplanes for C200H/HS/HE/HG/HX Programmable Controllers?

Can we use the CX-Programmer with the C200H CPU?

Why is it that when I use online editing to delete instructions that cause an output on Programmable Controllers to be turned ON, the output does not turn OFF?

Why does a communication error occur when the CX-Programmer FA Integrated Tool Package gets online with a Programmable Controller?

What is the difference between CPM2C Programmable Controllers CPU Units with sinking outputs and sourcing outputs?

What is indirect DM addressing?

What system configuration is necessary to display the contents of 4-digit decimal data memory in Programmable Controllers on an external 7-segment digital display?

What is a protocol macro?

Can a C200H-NC111/112/211 Position Control Units be used in a CS1-series Programmable Controllers? Are there any restrictions?

How can the Programmable Controller SYSMAC be connected to a personal computer through a serial port or an Ethernet? Is the FinesGateway necessary?

Is there a cable available that will connect the built-in RS-232C port of CS-series Programmable Controllers CPU Unit to NT-AL001 Option of Programmable Controllers?

What is the difference between C200H-ID216 Programmable Controllers’ input Units and C200H-ID218 Programmable Controllers’ input Units?

With the CX-Programmer FA Integrated Tool Package, what is the procedure to transfer a program to a C200HX/HG/HE-Z Programmable Controllers or C200HS PLC Memory Cassette? How is it verified?

What is the baud rate of the RS-232C communications port built in to CS1 Programmable Controllers CPU Unit?

What is the minimum version of the CX-Programmer FA Integrated Tool Package required to operate in a Windows XP environment?

Which OMRON products (general-purpose communications components) can the CPM2C-CIF21 Simplified Communications Unit communicate with?

When using C200H-CT001-V1/CT002/CT021 High-speed Counter Units, the RUN indicator does not light even when I turn ON power supplies to Programmable Controllers. Is the Unit malfunctioning?

What is the advantage of using index registers?

Is it necessary to create I/O tables when using CJ1 Programmable Controllers?

What is the difference between C1000H/C2000H-CPU01 Programmable Controllers and C1000H/C2000H-CPU01-V1?

How do I create a program to input 2-digit BCD data from a digital switch to CIO 0.08 to CIO 0.15 and then move the data to specified DM Area words?

How do I create a program to input 1.5-digit BCD data to CIO 0.00 to 0.05 BCD from a digital switch and move it to a specified DM Area word?

How do I make a program to transfer a 2.5-digit BCD data stored in the DM Area to display it on a static-input digital display (CIO 2.00 to CIO 2.09)?

When I transfer the program to CPM1A PLCs using the SYSMAC Support Software, a message saying to turn ON the Programmable Controllers’ DIP switch and try again was displayed. Why?

How do I program a time switch to turn ON and OFF a machine at specific time daily?