NS-Series Programmable Terminals HOST CONNECTION MANUAL

NS-Series Programmable Terminals HOST CONNECTION MANUAL


Intended Audience

This manual is intended for the following personnel, who must also have knowledge of electrical systems (an electrical engineer or the equivalent).

• Personnel in charge of introducing FA systems into production facilities.

• Personnel in charge of designing FA systems.

• Personnel in charge of installing and connecting FA systems.

• Personnel in charge of managing FA systems and facilities.

General Precautions

• The user must operate the product according to the performance specifications described in the operation manuals.

• Do not use the PT touch switch input functions for applications where danger to human life or serious property damage is possible, or for emergency switch applications.

• Before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems, machines and equipment that may have a serious influence on lives and property if used improperly, consult your OMRON representative.

• Make sure that the ratings and performance characteristics of the product are sufficient for the systems, machines, and equipment, and be sure to provide the systems, machines, and equipment with double safety mechanisms.

• This manual provides information for connecting and setting up an NS-series PT. Be sure to read this manual before attempting to use the PT and keep this manual close at hand for reference during installation and operation.

Safety Precautions

Do not attempt to take the Unit apart and do not touch any internal parts while the power is being supplied. Doing either of these may result in electrical shock.

Operating Environment Precautions

1. Do not install the Unit in the following places:

• Locations subject to direct sunlight

• Locations subject to temperatures or humidity outside the range specified in the specifications

• Locations subject to condensation as the result of severe changes in temperature

• Locations subject to corrosive or flammable gases

• Locations subject to dust (especially iron dust) or salts

• Locations subject to exposure to water, oil, or chemicals

• Locations subject to shock or vibration

2. Take appropriate and sufficient countermeasures when installing systems in the following



• Locations subject to static electricity or other forms of noise

• Locations subject to strong electromagnetic fields

• Locations subject to possible exposure to radioactivity

• Locations close to power supplies

Application Precautions

1. When unpacking the Units, check carefully for any external scratches or other damage.

Also, shake the Units gently and check for any abnormal sound.

2. The mounting panel must be between 1.6 and 4.8 mm thick. Tighten the Mounting

Brackets evenly to a torque of between 0.5 and 0.6 N

⋅m to maintain water and dust resistance. Make sure the panel is not dirty or warped and that it is strong enough to hold the Units.

3. Do not let metal particles enter the Units when preparing the panel.

4. If conformance to EC Directives (Low Voltage Directive) is required, use reinforced insulation for the power supplies.

5. Do not connect an AC power supply to the power terminals.

6. Use a DC power supply with minimal fluctuation voltage.

Rated power supply voltage: 24 VDC

(Allowable range: 20.4 to 27.6 VDC)

Capacity: 25 W min.

7. Do not perform a dielectric voltage test.

8. Use a twisted-pair cable with a cross-sectional area of at least 2 mm

2 to connect to the power terminals and always use M3.5 crimp terminals. Tighten the terminal screws to a torque of 0.8 N

⋅m. Make sure the screws are properly tightened.

9. Ground the Unit correctly to prevent operational errors caused by noise.

10. Do not touch the surface of the circuit board or the components mounted on it with your bare hands. Discharge any static electricity from your body before handling the board.

11. Confirm that the current capacity of the connected device is 250 mA or less before using the 5-V power supply from pin 6 of the serial port A, B connectors. The 5-V output of the

PT is 250 mA max. at 5 V


12. Turn OFF the power supply before connecting or disconnecting cables.

13. Always tighten the connector screws after connecting communications cables.

14. The maximum tensile load for cables is 30 N. Do not apply loads greater than this.

15. Confirm the safety of the system before turning ON or OFF the power supply or before pressing the reset button.

16. The whole system may stop depending on how the power supply is turned ON or OFF.

Turn ON or OFF the power supply according to the specified procedure.

17. Start actual system application only after sufficiently checking screen data. macros, and the operation of the program in the PC (host).

18. Always reset the power supply after changing switch settings.

19. After changing the settings of the DIP switch, always turn the power supply OFF and ON or reset the PT.

20. Do not perform the following operations while the Memory Card is being accessed:

• Turning OFF the power supply to the PT

• Pressing the PT’s reset switch

• Removing the Memory Card

Always following the specified procedure when removing the Memory Card.

21. Do not press the touch switch with a force greater than 30 N.

22. Confirm the safety of the system before pressing touch switches.

23. Do not accidentally press touch switches when the backlight is not lit or when the display does not appear.

24. Signals from the touch switches may not be input if the switches are pressed


consecutively at high speed. Confirm each input before proceeding to the next one.

25. Before initializing screen data, confirm that existing data is backed up at the CX-Designer.

26. When changing the password with the system menu, do not reset or turn OFF the power supply until writing is finished (i.e., until the Write Button returns to its original condition). It may become impossible to manipulate screens if the password is not set correctly.

27. When using the device monitor, confirm the safety of the system before performing the following operations.

• Changing monitor data

• Changing operation modes

• Forced setting or resetting

• Changing present values or set values

28. Do not use benzene, paint thinner, or other volatile solvents, and do not use chemically treated cloths.

29. Dispose of any battery that has been dropped on the floor or otherwise subjected to excessive shock.

30. Do not attempt to disassemble, repair, or modify the Unit in any way.

31. Dispose of the Units and batteries according to local ordinances as they apply.

32. To ensure system safety, incorporate a program that periodically calls PT operation bits from the host side to check that the PT is properly operating.

33. Do not connect an USB connector to any device that is not applicable.

34. Before connecting an USB connector to a device, make sure that the device is free of damage.

35. When mounting the Battery, be sure to use the correct Battery and mount it correctly.


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