NX I/O

NX I/O can be used with:

• EtherCAT, with an NX-ECC coupler as remote I/O.

• EtherNet/IP, with an NX-EIC coupler as remote I/O.

• PROFINET, with an NX-PNC coupler as remote I/O. (NX-PNC is not supported by CJ1W-PNT21.)

• NX502 CPU as local I/O.

• NX102 CPU as local I/O.

• NX1P2 CPU as local I/O.

NX-ECC couplers

There are now 3 editions of these, or versions to be more precise. Older couplers do not necessarily support newer I/O modules. See the tables in W525 Appendix A6 for details.
Always choose the ECC203, but the 201/202 can be used if Appendix A6 confirms it. This excerpt from manual W525 shows the main differences between the 3:

Overview of NX modules

*The NX1P2 and NX102 have no connection for NX bus I/O power (IOV, IOG). Many NX modules need I/O power to work but have no IOV/IOG connection of their own. We therefore recommend a PF0730 to provide it.

The following NX modules have no IOV/IOG of their own and MUST get them via the NX bus to work:
 ID4xxx, ID5xxx, ID6342, ID6442, OD5121, OD4256, OD5256, OD6121, OD6256, AD2203, AD3203, AD4203, AD4603, DAxxxx, TCxxxx, HB3101, HB3201, ILM400, V680C, SID800, SIH400, SOD400, SOH200

As an emergency workaround (not recommended) when an NX-PF is missing, you can connect 24 VDC to the IOV and IOG outputs if there are any. But remember that these can only be loaded with 0.1 A and are connected directly to the common IOV/IOG on the bus. There is a risk of overload and a damaged module if several modules draw power from the same supply.

With NX-AUX02 you can physically key the terminal blocks so they can't be put back in the wrong place.

Summary

• All NX units need NX Unit Power. Some NX units also need NX I/O Power. This usually applies when the connected device is supplied with 24 V from the NX unit.
• The NX-ECC and NX-EIC nodes have connections and bus outputs for both Unit Power and I/O Power. The NX1P2 and NX102 CPUs only have an output for Unit Power.
• PF0630 - NX I/O power boost, 4 A. Use it if there is too little power available to the left of the NX unit. (Typical for NX1, since it provides no I/O Power output. See the table below.)
• PF0730 - NX I/O power boost, 10 A. Use it if there is too little power available to the left of the NX unit. (Typical for NX1, since it provides no I/O Power output. See the table below.)
• PD1000 - NX Unit power boost. Use it if you have so many NX units in the rack that all available power is used up.
• PC0010 - 16 extra IOG terminals. Useful for units with 16 inputs.
  PC0020 - 16 extra IOV terminals. Useful for units with 16 inputs.
  PC0030 - a combination of PC0010 and PC0020, with 8 extra terminals of each type.
• PF and PD must be powered from an external power supply.

The table below shows modules where an additional NX-PF is recommended

Overview of some relay solutions for NX I/O

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NX-OD5256-5 and XW2Z-RO__C and G70V-SOC16P-1

NX-OD6256-5 and XW2Z-RO__-D1 and G70V-SOC16P-1

NX-OD4256 and P2RV-A100C-OMR NX and P2RVC-8-O-F

A selection of terminal solutions

NX-PG0232 and NX-PG0242 Connection