OPERATION MANUAL CompoBus/S

Sensor Terminals Section 5-5
Slave Components The following diagram shows the main components of the SRT@-OD08S Sensor
Terminals. The functions of these components are described below.
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Item Specification
Insulation method Photocoupler
Output indicators LED (yellow)
CompoBus/S Indicators
Indicate the status of the Slave and communications.
Indicate the status of the Slave and communications.
DIP Switch
The DIP switch's pins have the following functions:
Pins 1 to 4: Node number setting
Pin 5: Communications mode setting (SRT2 Series)
or Reserved (Always OFF) (SRT1 Series)
Pin 6: Hold/Clear outputs for communications error
Mounting Screw Holes
Used when screwing the
Unit to a control panel.
Output Indicators
Indicate the output status
of each contact. (Lit when
the output is ON.)
Output Connector for Remote Terminal
Connect the cable connector attached to output wires
leading to output devices such as solenoids, valves, and
lamps
Cable connectors XS8A-0441 (compatible wire size: 0.3 to
0.5 mm 2 ) and XS8A-0442 (compatible wire size: 0.14 to
0.2 mm 2 ) are sold separately.
DIN Track Mounting Hook
Used when mounting the Unit to a DIN track.
Power Supply Terminal Block
Used to connect the CompoBus/S communications power
supply (including I/O power supply).
Power supply from the special Flat Cable is not possible,
so a separate power supply must be connected.
CompoBus/S Terminal Block
Used to connect the CompoBus/S communications cable.
Indicators
The following table shows the meaning of the indicators.
Indicator Status Meaning
PWR (green) ON The external power supply is ON.
OFF The external power supply is OFF.
COMM (yellow) ON Normal communications
OFF A communications error has occurred or the Unit is in
standby status.
ERR (red) ON A communications error has occurred.
OFF Normal communications or the Unit is in standby status.