Local Safety I/O Functions; Local I/O Comments; I/O Power Monitor; Local Safety Inputs - Omron DeviceNet Safety NE0A Series Operation Manual

Local Safety I/O Functions

2-3

Local Safety I/O Functions

2-3-1

Local I/O Comments

Note
2-3-2

I/O Power Monitor

Note
2-3-3

Local Safety Inputs

Overview
Connecting to Contact
Output Safety Devices
Connecting
Semiconductor Output
Safety Devices
An optional name of up to 32 characters can be registered in the NE0A-series
Controller for each I/O terminal, using the Network Configurator. I/O com-
ments are registered in the safety logic settings of the NE0A-series Controller
and in the NE1A-series Logic Editor as I/O tag names, enabling easy concep-
tualization of what is actually being controlled and simplifying programming.
For details on making settings using the Network Configurator, refer to 6-3-3
Setting Local I/O Terminals (Safety Wizard).
The I/O power supply input can be monitored to confirm if it is normal. If an
I/O terminal on the NE0A-series Controller is set to any setting other than Not
Used and the normal power supply voltage is not input, an error will be
detected and can be confirmed using the following:
• The IN PWR and OUT PWR indicators on the front of the Unit will turn
OFF.
• The error will be registered in the error history and can be monitored
using the Network Configurator.
• The error will be shown in the Unit general status and can be monitored
using an NE1A-series Standard PLC.
(1) For details on the indicators, refer to 2-1-2 Indicator Area.
(2) For details on the error history, refer to SECTION 12 Troubleshooting.
(3) For details on Unit general status, refer to 6-5 Remote I/O Allocations.
A test pulse signal for the NE0A-series Controller is input by connecting to a
contact output device. Input signal line errors, such as the following, can be
detected by inputting the test pulse signal.
T0 T1
The following can be detected by using the
test pulse signal.
11 21
12 22
IN0 IN1
The output from a 24-VDC semiconductor, such as the OSSD output from a
Light Curtain, is input. Errors in the OSSD output signal line (i.e., the NE0A-
series Controller's input signal line) is detected at the external connection
device.
• Contact with the power supply line (pos-
itive side)
• Ground faults
• Short-circuits between input signal lines
Section 2-3
23