Omron NE1A - User manual

2
About NE1A-series Safety Network Controllers Section 1-1
1-1 About NE1A-series Safety Network Controllers
1-1-1 Introduction to the NE1A-series Safety Network Controllers
The NE1A-series Safety Network Controllers provide various functions, such
as safety logic operations, safety I/O control, and a DeviceNet Safety protocol.
The NE1A-series Controller allows the user to construct a safety control/net-
work system that meets the requirements for Safety Integrity Level (SIL) 3
according to IEC 61508 (Functional Safety of Electrical/Electronic/ Program-
mable Electronic Safety-related Systems) and the requirements for Safety
Category 4 according to EN 954-1.
In the example system shown below, the safety control system implemented
with an NE1A-series Controller and the monitoring system implemented with
a Standard PLC are realized on the same network.
• As a Safety Logic Controller, the NE1A-series Controller executes safety
logic operations and controls local I/O.
• As a DeviceNet Safety Master, the NE1A-series Controller controls the
remote I/O of DeviceNet Safety Slaves.
• As a DeviceNet Standard Slave, the NE1A-series Controller communi-
cates with the DeviceNet Standard Master.
Standard PLC
Standard Master
NE1A
Safety Master
Standard Slave
Standard Slave
Network Configurator
DST1 series
Safety Slave
Safety related Control
Non-safety-related Control
(Standard Control)
Safety Logic Operations and
Safety I/O Control
The PLC system monitors the
NE1A (i.e., the safety control
system) using DeviceNet I/O
communications and explicit
messages.
The DeviceNet Safety
System controls remote I/O.

3
About NE1A-series Safety Network Controllers Section 1-1
1-1-2 Features of the NE1A-series Controllers
Safety Logic Operations
In addition to basic logic functions, such as AND and OR, function blocks such
as Emergency Stop or Safety Gate Monitoring that enable various safety
applications are supported.
Local Safety I/O
• In the NE1A-SCPU01(-V1), a total of 24 local safety I/O points are sup-
ported: 16 inputs and 8 outputs.
• In the NE1A-SCPU02, a total of 48 local safety I/O points are supported:
40 inputs and 8 outputs.
• Faults in external wiring can be detected.
• Dual Channel Mode can be set for pairs of related local input terminals.
When Dual Channel Mode is set, an NE1A-series Controller can evaluate
the input data patterns and the time discrepancy between input signals.
• Dual Channel Mode can be set for pairs of related local output terminals.
When Dual Channel Mode is set, an NE1A-series Controller can evaluate
the output data patterns.
DeviceNet Safety Communications
• As a Safety Master, Pre-Ver. 1.0 Controllers can perform safety I/O com-
munications with up to 16 connections using up to 16 bytes per connec-
tion.
• The NE1A-series Controllers with unit version 1.0 can perform safety I/O
communications with up to 32 connections using up to 16 bytes per con-
nection.
• As a Safety Slave, the NE1A-series Controllers can perform safety I/O
communications with a maximum of four connections using up to 16 bytes
per connection.
DeviceNet Standard Communications
As a Standard Slave, the NE1A-series Controllers can perform standard I/O
communications with one Standard Master for up to two connections using up
to 16 bytes per connection.
Standalone Controller Mode
An NE1A-series Controller can be used as a Standalone Controller by dis-
abling its DeviceNet communications.
Configuration with a Graphical Tool
• A graphical tool is provided for both network configuration and logic pro-
gramming. It enables easy configuration and programming.
• A Logic Editor can be activated from the Network Configurator.
• Configuration data can be downloaded and uploaded, and devices can be
monitored online via DeviceNet, USB, or the peripheral interface of an
OMRON PLC.
System Startup and Error Recovery Support
• The error information can be checked by using the Network Configurator
or the indicators on the front of the NE1A-series Controller.
• The NE1A-series Controllerís internal status information can be moni-
tored from a Standard PLC by allocating the information in the Standard
Master. In the same way, monitoring with a Safety PLC is possible by allo-
cating information in the Safety Master.

4
About NE1A-series Safety Network Controllers Section 1-1
Access Control with a Password
• The NE1A-series Controllerís configuration data is protected by a pass-
word set in the Controller.
• The Network Configurator controls access to each project file with a pass-
word.

5
About NE1A-series Safety Network Controllers Section 1-1
1-1-3 Functional Overview
Function Overview Details
Logic Operations
Logic operations Basic logic operations, such as AND and OR, and function blocks,
such as Emergency Stop (ESTOP) and Safety Gate Monitoring
(SGATE), are supported.
In the Pre-Ver. 1.0 Controllers, up to 128 logic functions and function
blocks can be used in programming.
In the Controllers with unit version 1 or later, up to 254 logic func-
tions and function blocks can be used in programming.
Section 6
Safety I/O
I/O comments The user can store any name for each I/O terminal using a maximum
of 32 characters (ASCII).
5-1-1
I/O power monitoring The NE1A-series Controllers can detect whether I/O power is
supplied within the normal voltage range.
5-1-2
Safety inputs The NE1A-SCPU01(-V1) supports a 16 safety inputs.
The NE1A-SCPU02 supports a 40 safety inputs.
5-2
Input circuit diagnosis Test pulses are used to check the NE1A-series Controller’s internal
circuits, external devices, and external wiring.
Input ON/OFF delays Input time constants between 0 and 126 ms in multiples of the
Controller’s cycle time can be set for Controller’s inputs.
Setting input ON/OFF delays helps reduce influence from chattering
or external noise.
Dual Channel Mode Time discrepancies in changes in data or input signals between two
paired local inputs can be evaluated.
Test pulse outputs The NE1A-SCPU01(-V1) supports four independent test outputs.
The NE1A-SCPU02 supports eight independent test outputs.
These are normally used in combination with safety inputs.
They can also be set for use as signal output terminals.
5-3
Current monitoring for
muting lamp (T3, T7 ter-
minal only)
The NE1A-SCPU01(-V1) can detect a disconnection at the T3
terminal.
The NE1A-SCPU02 can detect disconnections at the T3 and T7 ter-
minals.
Overcurrent detection/
protection
An output is blocked when an overcurrent is detected to protect the
circuit.
Safety outputs The NE1A-SCPU01(-V1) and NE1A-SCPU02 both support eight
safety outputs.
5-4
Output circuit diagnosis Test pulses are used to check the NE1A-series Controller’s internal
circuits, external devices, and external wiring.
Overcurrent detection/
protection
To protect the circuit, the output is cut off when an overcurrent is
detected.
Dual Channel Mode Both of two paired outputs can be set into a safety state when an
error occurs in either of the two paired local outputs without depend-
ing on the user program.
DeviceNet Communications
Safety Master A master-slave relationship is established for each connection on the
DeviceNet Safety Network separate from the Master-Slave commu-
nications on the DeviceNet Standard Network. This enables the
NE1A-series Controller to be the safety master to control the con-
nections.
4-4
Safety Slave An NE1A-series Controller can also operate as a DeviceNet Safety
Slave, and the Controller’s internal status information as well as a
specified area of I/O can be allocated in the Safety Master.
4-5
Standard Slave An NE1A-series Controller can also operate as a Standard Slave,
and the Controller’s internal status information as well as a specified
area of I/O can be allocated in the Standard Master.
4-6

6
About NE1A-series Safety Network Controllers Section 1-1
1-1-4 Comparison of the I/O Capacity of the NE1A-SCPU01(-V1) and
NE1A-SCPU02
Explicit messages Explicit messages can be used to read an NE1A-series Controller’s
status information. In addition, explicit messages set from the
Network Configurator can be sent from the user program.
4-7
Automatic baud rate detec-
tion
The NE1A-series Controller’s baud rate can be set automatically to
match the baud rate of the network master.
4-1-1
Standalone Controller Mode
Standalone Controller
mode
An NE1A-series Controller can be used as a Standalone Controller
by disabling the Controller’s DeviceNet communications.
4-1-2
System Startup/Error Recovery Functions
Error history Errors detected by the NE1A-series Controller are recorded along
with the Controller’s total operating time at the point that the error
was detected.
10-4
Online monitoring The NE1A-series Controller’s internal status information and I/O
data can be monitored online from the Network Configurator.
System Configu-
ration Manual,
Section 7
Other Functions
Configuration lock The configuration data stored in the NE1A-series Controller can be
locked to protect the data after it has been downloaded and verified.
7-1
Reset The NE1A-series Controller can be reset from the Network Configu-
rator.
7-2
Password A password can be set to prevent unintended or unauthorized
access to the NE1A-series Controller.
7-3
Item NE1A-SCPU01 NE1A-SCPU02 Reference
Number of I/O points
Safety inputs 16 40 2-1
Test outputs 4 8 2-1
Safety outputs 8 8 2-1
Function Overview Details

7
About NE1A-series Safety Network Controllers Section 1-1
1-1-5 Functions Improved in the Unit Version 1.0 Upgrade
The following table outlines the changes made in the unit version 1.0 upgrade.
Function Summary Reference
Logic operations
Logic operations Up to 254 logic functions and function blocks can be used in program-
ming.
Section 6
Function blocks The following additional function blocks can be used:
Logic functions
• RS Flip-flop
• Comparator
Function blocks
•Muting
• Enable Switch
• Pulse Generator
• Counter
• Multi Connector
Section 6
Specifying the reset condi-
tions for the Reset and
Restart function blocks
The following reset conditions can be selected:
• Low - High - Low ON pulse (Earlier versionís reset condition)
• Low - High rising edge
Section 6
I/O control functions
Data usable in I/O tags The following additional I/O tags can be used:
• Local I/O status
• General Unit status
6-1-2
Contact Operation
Counter
The number of ON/OFF operations at an input or output can be counted
and stored internally.
5-1-3
Total ON Time Monitor The ON time of an input or output can be timed and stored internally. 5-1-4
DeviceNet communications functions
Safety Master function Up to 32 connections can be used. 4-4
Specifying the safety I/O
communications status
after a communications
error occurs
The user can specify one of the following conditions for safety I/O com-
munications after a communications error occurs.
• Automatic reset (earlier versionís function)
• Stop only the connection where the error occurred.
• Stop all connections
4-4
Restarting I/O communi-
cations that were stopped
due to a communications
error
When safety I/O communications have been stopped due to a communi-
cations error, the I/O communications can be restarted from the Network
Configurator or the logic program.
4-4
Remote I/O allocation When the Controller is operating as a Safety Slave or Standard Slave with
inputs, the following data can be attached to the send data.
• Local input monitor
• Local output monitor
4-3
Functions supporting system startup and error recovery
Saving the error history The non-fatal error history is stored in non-volatile memory. 10-3
Added error history items Errors occurring in function blocks are recorded in the error history. 10-4

8
System Configuration Section 1-2
1-2 System Configuration
1-2-1 DeviceNet Safety System Overview
DeviceNet is an open-field, multi-vendor, multi-bit network, which combines
the controls in the machine and line control levels with information. The
DeviceNet Safety network adds safety functions to the conventional
DeviceNet standard communications protocol. The DeviceNet Safety concept
has been approved by a third-party organization (TUV Rhineland).
Just as with DeviceNet, DeviceNet Safety-compliant devices from third-party
vendors can be connected to a DeviceNet Safety network. Also, DeviceNet-
compliant devices and DeviceNet Safety-compliant devices can be combined
and connected on the same network.
By combining DeviceNet Safety-compliant products, a user can construct a
safety control/network system that meets the requirements for Safety Integrity
Level (SIL) 3 according to IEC 61508 (Functional Safety of Electrical/Elec-
tronic/Programmable Electronic Safety-related Systems) and the require-
ments for Safety Category 4 according to EN 954-1.
Standard
communications
Safety Network Controller
-Safety Master
-Standard Slave
Standard PLC/Standard Master
Safety Terminal
-Safety Slave
-Standard Slave
Safety Network Controller
-Safety Slave
-Standard Slave
Standard Slave
Network Configurator
Safety
configuration
Standard
configuration
Safety
communications
Safety Control as a Safety Network
Controller
-Safety I/O Communications
Standard Control and Monitoring as
a Standard PLC
-Standard I/O communications
-Explicit message communications

9
System Configuration Section 1-2
1-2-2 Example System Configurations
The following examples illustrate safety control systems using NE1A-series
Controllers.
• Safety Control System with an NE1A-series Safety Master
• System Combining an NE1A- series Safety Control System and a Stan-
dard PLC Monitoring Control System
• System Combining a Distributed Safety Control System with Multiple
NE1A-series Controllers and a Centralized Monitoring System Using
Standard PLCs
• Standalone NE1A-series Controller System
• Connection with a Network Configurator
Safety Control System with an NE1A-series Safety Master
This system uses the NE1A-series Controller as a Safety Master and estab-
lishes a Safety Remote I/O System with Safety Slaves.
The Pre-Ver. 1.0 Controllers can perform safety I/O communications as a
Safety Master for a maximum of 16 connections (16 Slaves) with up to 16
bytes per connection.
Controllers with unit version 1.0 or later can perform safety I/O communica-
tions as a Safety Master for a maximum of 32 connections (32 Slaves) with up
to 16 bytes per connection.
The NE1A-series Controllers support two protocols, single cast and multicast
(broadcast), for safety I/O connections.
NE1A
Safety Master
DST1 Safety Slave
Safety connections (logic communications paths)
Either singlecast or multicast
16 connections maximum
32 connections maximum (unit version 1.0 or later
)
Safety Slave by other
manufacturer
Safety Slave by other
manufacturer

10
System Configuration Section 1-2
System Combining a Safety Control System and a PLC Monitoring Control System
This system uses the NE1A-series Controller as a Safety Master and estab-
lishes a Safety Remote I/O System with Safety Slaves.
The NE1A-series Controller is used as a Standard Slave and standard I/O
communications are performed with the Standard Master. The NE1A-series
Controller simultaneously functions as the Safety Master and a Standard
Slave.
As a Standard Slave, the NE1A-series Controller enables standard I/O com-
munications for a maximum of two connections with up to 16 bytes per con-
nection. Four protocols (i.e., Poll, Bitstrobe, COS and Cyclic) are supported
for I/O connections. The NE1A-series Controller cannot operate as a Stan-
dard Master.
The Safety Control System can be monitored using a Standard PLC by allo-
cating the NE1A-series Controller’s status information (general status, local I/
O error status, or other information) or logic operation results in the Standard
PLC for standard I/O communications.
A Safety System and a Monitoring System can be combined and established
on the same network by using standard devices and safety devices.
IMPORTANT A maximum total of 64 standard nodes and safety nodes can be connected on
the same network.
The data attributes handled by standard I/O communications and explicit
message communications are non-safety data. The necessary measures for
safety data are not taken for this data during data generation. Therefore, do
not use this data to configure the Safety Control System.
NE1A
Safety Master
Standard Slave
Safety Slaves by other manufacturers
Safety I/O communications
Standard PLC
Standard Master
Standard I/O communications
and explicit messages
Safety Control SystemMonitoring System
DST1 Safety Slave

11
System Configuration Section 1-2
System Combining a Distributed Safety Control System with Multiple NE1A-series
Controllers and a Centralized Monitoring System
This system uses each NE1A-series Controller as a Safety Master and estab-
lishes a Safety Remote I/O System with Safety Slaves.
Each NE1A-series Controller also simultaneously functions as a Standard
Slave and standard I/O communications are performed with the Standard
Master.
The Safety Control System can be monitored using a Standard PLC by allo-
cating the NE1A-series Controller’s status information (general status, local I/
O error status, or other information) or logic operation results in the Standard
PLC.
In the DeviceNet Safety System, multiple Safety Masters can be connected
on the same network. Therefore, the distributed safety control blocks can be
monitored centrally on the same network.
Also, safety I/O communications between NE1A-series Controllers can be
performed as illustrated in the following diagram. In the diagram, NE1A #2 is
set as the slave of NE1A #1 safety connections to perform safety I/O commu-
nications.
NE1A #1
Safety Master
Standard Slave
Safety Slaves by other manufacturers
Safety I/O communications
Standard PLC
Standard Master
Standard I/O
communications or
explicit messages
Safety Control System B
Safety Control System A
Monitoring System
NE1A #2
Safety Master
Standard Slave Safety I/O communications
Safety Slaves by other manufacturers
DST1 Safety Slave
DST1 Safety Slave

12
System Configuration Section 1-2
The NE1A-series Controller functions as a Safety Master, Safety Slave, and
Standard Slave simultaneously. As a Safety Slave, the NE1A-series Controller
enables safety I/O communications for a maximum of four connections with up
to 16 bytes per connection.
IMPORTANT The data attributes handled by DeviceNet standard I/O communications and
explicit message communications are non-safety data. The necessary mea-
sures for safety data are not taken for this data during data generation. There-
fore, do not use this data to configure the Safety Control System.
NE1A #1
Safety Master
Standard Slave
Standard PLC
Standard Master
Safety Slaves by other manufacturers
Safety Control System A
Monitoring System
NE1A #2
Safety Master
Safety Slave
Standard Slave
Safety I/O communications
NE1A #2 functions as a Safety Slave
under NE1A #1.
Safety Control System B
Safety Slaves by other manufacturers
NE1A #1 functions as the Safety Master
for NE1A #2.
DST1 Safety Slave
DST1 Safety Slave

13
System Configuration Section 1-2
NE1A Standalone System
If there are only a few I/O points, the NE1A-series Controller can be used as
Standalone Controller.
The Controller’s DeviceNet communications can be disabled through settings
made from the Network Configurator to enable the NE1A-series Controller to
operate as Standalone Controller.
IMPORTANT Use a USB port connection to set Standalone Mode. DeviceNet communica-
tions are stopped when Standalone Mode is set, and so setting is not possible
from the DeviceNet port.
Emergency stop
buttons
Door switches Two-hand switche
s
Network Configurator
USB communications
Contactors
NE1A
(Standalone)

14
System Configuration Section 1-2
Connection with Network Configurator
The NE1A-series Controller is set and programmed using a Network Configu-
rator. The Network Configurator also enables uploading configuration data,
online monitoring of program execution status, error history checks, etc.
The Network Configurator can be used in the following three ways:
• Direct connection to DeviceNet
• USB connection to the NE1A-series Controller
• Serial connection to an OMRON PLC
Direct Connection to DeviceNet
A DeviceNet Board/Card enables the Network Configurator to connect directly
to the network. Remote configuration and monitoring are supported for stan-
dard nodes and safety nodes on the network. When connected directly to
DeviceNet, the Network Configurator forms one node on the network.
Standard PLC
Standard Master
NE1A
Safety Slave Standard Slave
Downloading/uploading configuration
the Network Configurator for devices on
data and monitoring are supported from
the network via DeviceNet.
Network
C
onfigurator
Explicit message communications
PCI Board
PCMCIA Card

15
System Configuration Section 1-2
USB Connection to an NE1A-series Controller
The Network Configurator can be used by connecting to the USB port on the
NE1A-series Controller. Remote configuration and monitoring are supported
for not only the Controller connected to the USB port but also for other
devices on the network. For a USB connection, the Network Configurator
does not use a node address on the network.
Serial Connection to an OMRON PLC
The Network Configurator can be used by connecting to a serial port on an
OMRON PLC. Remote configuration and monitoring are supported for stan-
dard nodes and safety nodes on the network. For a PLC connection, the Net-
work Configurator does not use a node address on the network.
Note Check the following when downloading from a Standard Master to the NE1A.
•The timeout monitor time for the Standard Master must be at least
15 seconds.
•Remote I/O communications from the Standard Master to the NE1A must
be stopped (disconnected).
Standard PLC
Standard Master
NE1A
Safety Slave Standard Slave
Network Configurator
USB communications Exp icit message communications
Standard PLC
Standard Master
NE1A
Safet
y
Slave Standard Slave
Network Configurator
Serial communications
(Host Link or Peripheral
bus (toolbus))
Explicit message communications

16
System Setup Procedure Section 1-3
1-3 System Setup Procedure
The general working phases until the Safety System is operational are shown
below.
The NE1A-series Controller information required in each phase is described
in the following sections.
Refer to the following manuals for information on DeviceNet installation,
DeviceNet Safety System construction, Network Configurator operation, Pro-
gramming Device operation, and other devices used in the safety system.
1. System Design
2. Programming
4. Configuration
3. Installation and Wiring
5. User Testing
6. System Operation
Working phase Required information Details
System design • System overview and example configurations
• Specifications and functions
• Performance
Section 1
Section 2, Section 4 to 8
Section 9
Programming • Programming guidelines
• Function block specifications
Section 6
Installation and wiring • Node address and baud rate settings
• Installation location
• Device connections
• Power supply wiring
• Connection with I/O devices
• Wiring for DeviceNet
Section 4-1
Section 3
Configuration • Configuration method Section 7
User test • Error classification and error history Section 10
System operation • Maintenance and inspection Section 11
Item Manual name Cat. No.
Installation of DeviceNet DeviceNet User’s Manual W379
Construction of a DeviceNet
Safety System
DeviceNet Safety System Configuration Manual Z905
Network Configurator Operation
Programming Device Operation
Installation of Safety I/O Termi-
nals
DeviceNet Safety I/O Terminal Operation Man-
ual
Z904

17
SECTION 2
Specifications and Nomenclature
2-1 Nomenclature and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2-1-1 Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2-1-2 Indicator/Display Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2-1-3 Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2-1-4 DeviceNet Communications Connector . . . . . . . . . . . . . . . . . . . . . . 24
2-1-5 USB Communications Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2-1-6 Input/Output Terminals and Internal Connections . . . . . . . . . . . . . . 25
2-2 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2-2-1 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2-2-2 DeviceNet Communications Specifications . . . . . . . . . . . . . . . . . . . 29
2-2-3 I/O Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

18
Nomenclature and Functions Section 2-1
2-1 Nomenclature and Functions
This section describes the part names and functions of the NE1A-series Con-
trollers.
2-1-1 Nomenclature
NE1A-SCPU01 (Pre-Ver. 1.0)
Indicator/display area
Indicator area
Node address switches:
Sets the DeviceNet node address
as a 2-digit decimal number.
DeviceNet communications connector:
Connects to the network communications cable.
The power for communications is also supplied from this connector.
The XW4G-05C1-H1-D is provided for node connections.
USB port
(B connector)
Baud rate switch:
Sets the DeviceNet baud rate.
Terminal area
Terminal area

19
Nomenclature and Functions Section 2-1
NE1A-SCPU01 (Unit Version 1.0 or Later)
Terminal area
Indicator area
Terminal area
Baud rate switch:
Sets the DeviceNet baud rate.
DeviceNet communications connector:
Connects to the network communications cable.
The power for communications is also supplied from this connector.
The XW4G-05C1-H1-D Connector is
p
rovided for node connections.
USB port
(B connector)
Node address switches:
Sets the DeviceNet node address
as a 2-digit decimal number.
Indicator/display area

20
Nomenclature and Functions Section 2-1
NE1A-SCPU02
Terminal area
Indicator are
a
Terminal area
Baud rate switch:
Sets the DeviceNet baud rate.
DeviceNet communications connector:
The power for communications is also supplied from this connector.
Connects to the network communications cable.
The XW4G-05C1-H1-D Connector is provided for node connections.
USB port
(B connector)
Node address switches:
Sets the DeviceNet node address
as a 2-digit decimal number.
Indicator/display area

21
Nomenclature and Functions Section 2-1
2-1-2 Indicator/Display Areas
Status Indicators
The following LED indicators show the status of the NE1A-series Controller,
network, and I/O circuits.
• MS (module status)
• NS (network status)
• LOCK (configuration lock status)
• COMM (USB communications status)
• IN 0 to 15 (local input status, NE1A-SCPU01(-V1))
• IN 0 to 39 (local input status, NE1A-SCPU02)
• OUT 0 to 7 (local output status)
: ON : Flashing : OFF
Indicator name Color Status Meaning
MS
(module status)
Green Operation status
Idle status
Red Critical error status
Abort status
Green/red Waiting for TUNID setting during self-diagnosis or waiting for
configuration.
- Power is not supplied.
NS
(network status)
Green Online connection has been established.
Online connection has not been established.
Red Unable to communicate.
I/O communications error
Green/red Waiting for TUNID setting.
- Not online or DeviceNet communications disabled (Standalone
Mode).
LOCK
(configuration lock)
Yellow Lock has been completed with a valid configuration.
Lock has not been completed with a valid configuration.
No valid configuration data
COMM
(USB)
Yellow Data transmission/reception in progress.
No data transmission/reception in progress.
NE1A-SCPU01
IN 0, 1, 2, …15
OUT 0, 1, 2, …7
(local I/O status)
NE1A-SCPU02
IN 0, 1, 2 …39
OUT 0, 1, 2 …7
(local I/O status)
Yellow I/O signal is ON.
Red Error detected in I/O circuits.
Discrepancy error has occurred in an input set for Dual Chan-
nel Mode.
Dual channel violation has occurred in an output set for Dual
Channel Mode.
Error detected in the other I/O circuit set for Dual Channel
Mode (no error in this I/O circuit).
- I/O signal is OFF.