Appendix
A - 82
NX-series Safety Control Unit User’s Manual (Z930)
Refer to the user’s manuals for individual NX Units or to the NX-series Data Reference Manual (Cat.
No. W525) for the definition of Tnx-Indelay in the above table and use it in the calculations.
Tnx-OutProc
This is the output data processing time of the NX Unit. It is the time from when the NX Unit reads the
output data that was sent by the EtherNet/IP Coupler Unit until preparations to update the output
data are completed. There is a unique value for each type of NX Unit.
The NX Unit output data processing time has a different definition or value for each type of NX Unit.
The following table gives the value or definition of Tnx-OutProc for each type of NX Unit.
If a formula rather than a value is given for Tnx-OutProc in the above table, refer to the user’s man-
uals for individual NX Units or to the NX-series Data Reference Manual (Cat. No. W525) for the val-
ues of the items to make the calculation.
Tnx-Outdelay
This is the output delay time of the NX Unit. This is the time required to change the output terminals
according to the updated output data in the NX Unit. There is a unique value for each type of NX
Unit.
The NX Unit output delay time has a different definition or value for each type of NX Unit. The follow-
ing table gives the value or definition of the output delay time for each type of NX Unit.
If a formula rather than a value is given for Tnx-Outdelay in the above table, refer to the user’s man-
uals for individual NX Units or to the NX-series Data Reference Manual (Cat. No. W525) for the val-
ues of the items to make the calculation.
To calculate the I/O response times between a Safety I/O Unit and Standard I/O Unit, add the
input response time or output response time to the FSoE watchdog timer value of the Safety
I/O Unit.
Analog Input Units Conversion time ×
Number of points
The conversion time and number of points depend on the
model of the Unit.
Type of NX Unit Tnx-OutProc Remarks
Digital Output Units 0 μs---
Analog Output Units Conversion time ×
Number of points
The conversion time and number of points depend on the
model of the Unit.
Type of NX Unit Tnx-Outdelay Remarks
Digital Output Units ON/OFF response
time
The ON/OFF response time depends on the model of the
Unit.
Analog Output Units 0 μs---
Type of NX Unit Tnx-Indelay Remarks