Letter Description Model Description
(a) NX-series CPU Unit
NX102-££££
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(b) EtherCAT Coupler Unit NX-ECC203 Node address: 1
(c) High-speed Analog Input Unit NX-HAD401
• NX Unit number: 1
• Channel used: Ch1
Variable Table
External variables and internal variables that are used in the programming are given below.
External Variables
Use the system-defined variables given in the table below as external variables.
Variable name Data type Constant Description
_EC_PDSlavTbl[1] ARRAY[1..192] OF
BOOL
Process Data Communicating Slave
Table (Node1)
_EC_CommErrTbl[1] ARRAY[1..192] OF
BOOL
Communications Error Slave Table
(Node1)
_EC_SlavErrTbl[1] ARRAY[1..192] OF
WORD
Slave Error Table (Node1)
_EC_InDataInvalid BOOL
Input Process Data Invalid Error
Appendices
A - 18
NX-series Analog I/O Units User’s Manual for High-speed Analog Input Units (W592)