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12 Communications Performance
NX-series EtherCAT Coupler Unit User’s Manual (W519)
12-1
P
e
rform
ance o
f Proces
s Dat
a Com
m
u
n
icat
ion
s
12
12-
1-1
I/O R
espon
se T
ime
s for
Synchr
onous I/O R
efreshing
(b)
Calculating Etxj
The value of Etxj is fixed. The value is given below.
(c)
Calculating Tmax-InTrans
There is only one EtherCAT Slave Terminal, so the value is as follows:
Tmax-InTrans = T#1-InTrans
The following parameters are required to calculate T#1-InTrans.
Refer to
Unit Configuration and Data Sizes in the EtherCAT Slave Terminal
for the values of the above parameters.
Therefore, the value of Tmax-InTrans is as follows:
Formula: Etxj = 100
(Unit:
μ
s)
Parameter
Value
Remarks
Total byte size of the
input data of the NX Unit
20 bytes
This is the total input data size of the NX Unit.
Number of NX Units
18 Units
---
Number of NX Units with
BOOL input data
8 Units
---
Formula: Tmax-InTrans
= T#1-InTrans
= 9.22
×
(Integer quotient of total byte size of the input data of the NX Unit
÷
32)
+ 0.55
×
(Remainder of total byte size of the input data of the NX Unit
÷
32)
+ (0.34
×
Number of NX Units with BOOL input data + 3.41)
+ 3.53
×
Number of NX Units
+ 0.014
×
Total bytes size of NX Unit input data
+ 75.17
= 9.22
×
(Integer quotient of 20 bytes
÷
32)
+ 0.55
×
(Remainder of 20 bytes
÷
32)
+ (0.34
×
8 Units + 3.41) + 3.53
×
18 Units
+ 0.014
×
20 bytes + 75.17
= 9.22
×
0.00 + 0.55
×
20.00 + (0.34
×
8 Units + 3.41)
+ 3.53
×
18 Units + 0.014
×
20 bytes + 75.17
= 156.12
(Unit:
μ
s)
Summary of Contents for NX-ECC201
Page 38: ...Sections in this Manual 36 NX series EtherCAT Coupler Unit User s Manual W519...
Page 46: ...1 EtherCAT Networks 1 8 NX series EtherCAT Coupler Unit User s Manual W519...
Page 56: ...2 Features and System Configuration 2 10 NX series EtherCAT Coupler Unit User s Manual W519...
Page 82: ...4 Part Names and Functions 4 14 NX series EtherCAT Coupler Unit User s Manual W519...
Page 100: ...5 Designing the Power Supply System 5 18 NX series EtherCAT Coupler Unit User s Manual W519...
Page 214: ...9 Setting Up Slave Terminals 9 44 NX series EtherCAT Coupler Unit User s Manual W519...
Page 254: ...11 EtherCAT Coupler Unit Functions 11 30 NX series EtherCAT Coupler Unit User s Manual W519...
Page 278: ...12 Communications Performance 12 24 NX series EtherCAT Coupler Unit User s Manual W519...
Page 340: ...14 Maintenance and Inspection 14 8 NX series EtherCAT Coupler Unit User s Manual W519...
Page 400: ...Appendices A 60 NX series EtherCAT Coupler Unit User s Manual W519...
Page 401: ...Index 1 NX series EtherCAT Coupler Unit User s Manual W519 I Index...
Page 405: ......