Omron NX102 series User Manual

6-17
6 Process Data Communications and SDO Communications
NJ/NX-series CPU Unit Built-in EtherCAT Port User’s Manual (W505)
6-1 Process Data Communications (PDO Communications)
6
6-1-5 I/O Operations for Major Fault Level Controller Errors and I/O Refreshing with Specified Values
*1 If multiple tasks are assigned, the longest task period is used for calculation.
*2 The Slave Sync Manager WDT error detection time is the time from when the last process data is received
until a reception error is detected.
Precautions for Correct UsePrecautions for Correct Use
You cannot obtain current errors from slaves after a major fault occurs except for those in Ether-
CAT Slave Terminals.
Additional Information
When a major fault level Controller error occurs, the related system-defined variables have the
following values.
 For NX701 CPU Units
_EC_InData1Invalid = TRUE
_EC_InData2Invalid = TRUE
_EC_PDSlavTbl[] = FALSE
_EC_MBXSlavTbl[] = Values before operation stopped
 For NX102 and NX1P2 CPU Units and NJ-series CPU Units
_EC_InDataInvalid = TRUE
_EC_PDSlavTbl[] = FALSE
_EC_MBXSlavTbl[] = Values before operation stopped
CPU Unit Formula Maximum time
NX-series PDO communications timeout detection count × Task
period of the task assigned to slave
*1
+ 10 ms
The result given from the left for-
mula.
The maximum time is 100 to 110
ms if the calculation result is 110
ms or less.
NJ-series Slave Sync Manager WDT error detection time (100
ms)
*2
+ Communications cycle (4 ms max.) + Margin
110 ms

Omron NX102 series Specifications

General

Brand	Omron
Model	NX102 series
Category	Controller
Language	English