OPERATION MANUAL CompoBus/S

Remote Terminals Section 5-1
Slave Components The following diagram shows the main components of the SRT@-MD16T (-@)
Remote Terminal. The functions of these components are described below.
Circuit Block Mounting
Screw
Used to remove the circuit block
when replacing it.
Rotary Switch
Sets node number.
DIP Switch
The DIP switch's pins have the following functions:
Pins 1 and 2: Reserved (Always OFF)
Pin 3: Communications mode setting (SRT2 Series)
or Reserved (Always OFF) (SRT1 Series)
Pin 4: Hold/Clear outputs for communications error
CompoBus/S Indicators
Indicate the status of the Slave
and communications.
Mounting Screw Holes
Used when screwing the
Unit to a control panel.
DIN Track Mounting Hooks
Used when mounting
the Unit to a DIN track.
Terminal Block
Used to connect CompoBus/S communications cables
and communications power supply.
I/O Indicators
Indicate I/O status of each contact.
The left half is lit when the input is ON, the
right half is lit when the output is ON.
Terminal Block
The left half is the input terminal block
and is used to connect I/O power
supply, and input devices such as
switches and sensors.
The right half is the output terminal
block and is used to connect I/O
power supply, and output devices
such as relays and indicators.
Indicators
The following table shows the meaning of the indicators.
Indicator Status Meaning
PWR (green) ON The communications power supply is ON.
OFF The communications 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.
0 to 7 (8 inputs) ON The corresponding input is ON.
0 to 7 (8 outputs)
(yellow)
OFF The corresponding input is OFF or the Unit is in standby
status.
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