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Indicators Section 4-2
4-2 Indicators
4-2-1 MS/NS Indicators
This section describes the meanings of MS and NS indicators for the DST1-
series Safety I/O Terminals.
The MS (Module Status) indicator displays the status of a node on the net-
work.
The NS (Network Status) indicator displays the status of the entire network.
The MS and NS indicators can be green or red and they can be ON, flashing,
or OFF. The meanings indicated by the combination of their colors and status
are as given in the following table.
: Lit : Flashing : Not lit
Note Applicable to the DST1-XD0808SL-1 only.
4-2-2 Configuration Lock Indicator
The LOCK indicator indicates that the configuration data has been locked.
: Lit : Flashing : Not lit
Indicator Color Status Meaning
MS Green Normal operation status; RUN status (See note.)
Waiting for communications from the Safety Master; Idle status (See note.)
Red System failure
Minor failure (Switch settings incorrect, etc.)
Green/Red The DST1 is performing initialization process or waiting for configuration.
- Power is not supplied
NS Green Online connection has been established.
Online connection has not been established.
Red Unable to communicate
I/O communication error
-
Not online/Not powered
MS
MS
MS
MS
MS
MS
NS
NS
NS
NS
NS
MS
Indicator Color Status Meaning
LOCK Yellow Lock has been completed with a valid configuration.
Lock has not been completed with a valid configuration.
Configuration has not been performed.
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