Omron NE1A-SCPU01 - 07-2009 - Page 46

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System Configuration Section 1-2
Monitoring DeviceNet or DeviceNet Safety Systems via Ethernet from Controller Made
by Other Manufacturers
If the networks are constructed using an NE1A-EDR01 EtherNet/IP-
DeviceNet Router, devices on DeviceNet or DeviceNet Safety network can be
accessed from general-purpose controllers (e.g., PLCs or computers) in an
Ethernet network using the UDP service. This enables monitoring a
DeviceNet or DeviceNet Safety control system via Ethernet from a machine
controller or monitor computer that does not support a DeviceNet interface.
This can be used to easily add a DeviceNet Safety control system to an exist-
ing system.
Note Refer to the EtherNet/IP-DeviceNet Router Operation Manual (Cat. No. Z912)
for details on the NE1A-EDR01 EtherNet/IP-DeviceNet Router.
Monitoring a DeviceNet Safety (or DeviceNet) System from a PLC or Controller on an
EtherNet/IP Network
As shown in the following diagram, a DeviceNet Safety (or DeviceNet) system
can be monitored using EtherNet/IP Standard Target I/O from a PLC or Con-
troller on an EtherNet/IP network via an NE1A-series Controller that supports
EtherNet/IP.
ED Router
(NE1A-EDR01)
PLC (OMRON or other maker)
OR
Ethernet
Command via UDP
Command via UDP
DeviceNet Safety
NE1A Safety Network Controller
Computer
Socket service (UDP)
DeviceNet Safety
DST1-series Slaves
DeviceNet Safety
DST1-series Slaves
DeviceNet Safety
Safety controls can be monitored by accessing
devices on the DeviceNet Safety network using the
UDP service from a general-purpose controller on
the Ethernet network (e.g., a PLC or computer).
Ethernet
DeviceNet Safety
DST1-series
DeviceNet Safety Slaves
NE1A-series Controller
(supporting EtherNet/IP)
or
DeviceNet Safety
DST1-series
DeviceNet Safet
y
Slaves
OMRON PLC or PLC from another maker
Personal computer
NE1A-series Controller
(supporting EtherNet/IP)
Devices on a DeviceNet Safety network can be
accessed from a general-purpose Controller (such as a
PLC or personal computer) on Ethernet, and safety
control can be monitored.