SRT2-
P
P
P
P
D16T
SRT2-
P
P
P
P
D16T
3
Nomenclature
ERR Indicator: Indicates communications errors.
COMM Indicator: ON while the Module is in data communication.
Power Indicator
Communications DIP Switch
The DIP switch is on the left-
hand side under the cover on
the upper part of the Remote
I/O Terminal.
Address Setting Switch
Set the rotary switch to the node
address by referring to the
following table.
I/O Indicators
M4 Mounting Screw
Terminal Cover
The Module stops operating with the
cover opened.
I/O and I/O Device Power Supply Terminals 8 to 15
These terminals will be used as output terminals 0
through 7 if the connected device handles both input
and output signals.
I/O and I/O Device Power Supply Terminals 0 to 7
These terminals will be used as input terminals if the
connected device handles both input and output
signals.
I/O Power Supply Terminals
Connect 24 VDC I/O power supply
Fixture Track
Used for DIN track mounting.
CompoBus/S Internal Power Supply
Terminals (BS+ and BS--)
CompoBus/S Communications Cable
Terminals (BDH and BDL)
3
INDICATORS
Indicator
Display
Color
Meaning
PWR
Lit
Green
The communications power supply is ON.
Not lit
The communications power supply is OFF.
COMM
Lit
Yellow
Normal communications
Not lit
A communications error has occurred or the Module is in standby status.
ERR
Lit
Red
A communications error has occurred.
Not lit
Normal communications or the Module is in standby status.
0 to 15
Lit
Yellow
The corresponding I/O signal is ON.
Not lit
The corresponding I/O signal is OFF.
3
DIP SWITCH SETTINGS
Pins 1 and 2 are reserved. The
default setting is always OFF.
Baud Rate Setting
Mode
Pin 3
Setting
Long distance
ON
Sets the I/O block to communicate in a long distance (500 m at 93.75 kbps) CompoBus/S system.
High speed
OFF (default)
Sets the I/O block to communicate in a high speed (750 kbps at 100 m) CompoBus/S system.
Output HOLD/CLEAR Mode
Mode
Pin 4
Setting
HOLD
ON
Output status is maintained.
CLEAR
OFF (default)
Output status is cleared when a communications error occurs.
