Description Of Safety Functions; Dst1-Series Safety I/O Terminals - Omron DEVICENET SAFETY - 03-2008 Operation Manual

Description of Safety Functions

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Description of Safety Functions

1-4-1

DST1-series Safety I/O Terminals

Safe State
Self-diagnosis Functions
Access Control by Password
Note
The following status is treated as the safe state by the DST1-series Safety I/O
Terminals.
• Safety outputs: OFF
• Output data to network: OFF
DeviceNet
Outputs: OFF
Therefore, the DST1-series Safety I/O Terminals must be used for applica-
tions in which it enters into safe state when the safety outputs turn OFF and
the output data to the network turns OFF.
Self-diagnosis is performed when the power is turned ON and periodically
during operation. If an error occurs, it will be treated as a fatal error (the MS
indicator will light in red), and the safety outputs and output data to the net-
work will turn OFF.
After configuration data had been downloaded and verified, the configuration
data within the DST1-series Safety I/O Terminals can be protected by a pass-
word.
Network Configurator
Password setting
DST1 Safety I/O Terminal
Configuration data
Refer to the System Configuration Manual (Cat. No. Z905) for password set-
ting.
Outputs to network: OFF
Safe
state
Inputs
DeviceNet network
Configuration data
downloaded.
Section 1-4
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