Omron NXR Series User Manual page 95

 How the Disconnection Detection Works
If the function detects disconnection, the following bits of process input data turn ON and the I/O
Cable Disconnection (7701 hex) device event occurs. Also, the status appears in the Pin 4/Pin 1
status indicator or Pin 2 status indicator.
Refer to Process Input Data of each Hub in 6-1 Process Data on page 6-2 for details on the proc-
ess input data.
Disconnection type
Pin 4 external load disconnection
Pin 2 external load disconnection
Sensor disconnection
*1. £ refers to port numbers 1 to 8.
Each disconnection detection bit turns OFF when the cause of the disconnection is removed.
On the other hand, each disconnection detection hold bit remains ON after the cause of the discon-
nection is removed. Refer to Turning OFF the Disconnection Detection Hold Bits on page 7-5 for
how to turn off the bits.
The Pin 4/Pin 1 status indicator or the Pin 2 status indicator operates according to the status of
each relevant disconnection detection bit. The disconnection detection hold bits are irrelevant to in-
dicator display.
Refer to 8-4 Checking for Errors and Troubleshooting with the Device Events on page 8-9 for de-
tails on the device events.
Refer to 3-2 Indicators on page 3-4 for information on the indicator display.
 Turning OFF the Disconnection Detection Hold Bits
Each disconnection detection hold bit remains ON after the relevant cause is removed. To turn OFF
the bits, remove the cause of the disconnection and perform either of the following operations a to
c. The operations a and b configure the relevant data in the service data through message commu-
nications from the Controller to the IO-Link device. Refer to the NXR-series IO-Link Master Unit for
EtherNet/IP User's Manual (Cat. No. W619) for details on how to access the service data through
message communications. Refer to 6-2 Service Data on page 6-9 for details on the service data.
a. Execute a relevant disconnection detection hold reset
Write 01 hex: reset in the following service data.
This turns OFF the disconnection detection hold bits.
Port£ Pin4 External Load Disconnection Detection Hold Reset 73
Port£ Pin2 External Load Disconnection Detection Hold Reset 75
Port£ Sensor Disconnection Detection Hold Reset
*1. £ refers to port numbers 1 to 8.
b. Execute all hold bits reset
NXR-series IO-Link I/O Hub User's Manual (W620)
•
Smart Status Port£ Status Summary Bit
•
Port£ Status Pin4 External Load Disconnection Detection Bit
•
Port£ Status Pin4 External Load Disconnection Detection Hold Bit
•
Smart Status Port£ Status Summary Bit
•
Port£ Status Pin2 External Load Disconnection Detection Bit
•
Port£ Status Pin2 External Load Disconnection Detection Hold Bit
•
Smart Status Port£ Status Summary Bit
•
Port£ Status Sensor Disconnection Detection Bit
•
Port£ Status Sensor Disconnection Detection Hold Bit
*1
Service data
7 Functions of IO-Link I/O Hubs
*1
Bit which turns ON
Index (Dec) Subindex
£
£
77 £
7
*1
(Dec)
7-5