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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
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