9
Transistor Remote Terminal Blocks
Ultra-compact CompoBus/S
Transistor I/O Terminal Blocks
1
SRT2 models support both high-speed
communications (750 kbps) and long-
distance communications (500 m)
systems, switch selected
SRTP-ID/OD
P
1
SRT1 models support only high-speed
communications systems
1
Two independent power supplies can be
used because the I/O terminals are
isolated from the internal circuits
èò
1
DIN track and screw mounting
Ordering Information
I/O
points
4
Communications
type
High-speed
g
I/O classification
Input
Output
High-speed and
g
long--distance
l
di t
Input
Output
8
High-speed
g
Input
Output
High-speed and
g
long-distance
l
di t
Input
Output
16
High-speed
g
Input
Output
High-speed and
g
long-distance
l
di t
Input
Output
Internal I/O
circuit common
NPN (+ common)
PNP (-- common)
NPN (-- common)
PNP (+ common)
NPN (+ common)
PNP (-- common)
NPN (-- common)
PNP (+ common)
NPN (+ common)
PNP (-- common)
NPN (-- common)
PNP (+ common)
NPN (+ common)
PNP (-- common)
NPN (-- common)
PNP (+ common)
NPN (+ common)
PNP (-- common)
NPN (-- common)
PNP (+ common)
NPN (+ common)
PNP (-- common)
NPN (-- common)
PNP (+ common)
Rated
voltage
24 VDC
I/O rated
voltage
24 VDC
Part number
SRT1-ID04
SRT1-ID04-1
SRT1-OD04
SRT1-OD04-1
SRT2-ID04
SRT2-ID04-1
SRT2-OD04
SRT2-OD04-1
SRT1-ID08
SRT1-ID08-1
SRT1-OD08
SRT1-OD08-1
SRT2-ID08
SRT2-ID08-1
SRT2-OD08
SRT2-OD08-1
SRT1-ID16
SRT1-ID16-1
SRT1-OD16
SRT1-OD16-1
SRT2-ID16
SRT2-ID16-1
SRT2-OD16
SRT2-OD16-1
SRTP-ID/OD
P
SRTP-ID/OD
P
Specifications
3
RATINGS
Inputs
Input current
ON delay time
OFF delay time
ON voltage
OFF voltage
OFF current
Insulation method
Input indicators
6 mA max./point
1.5 ms max.
1.5 ms max.
15 VDC min. between each input terminal and V
5 VDC max. between each input terminal and V
1 mA max.
Photocoupler
LED (yellow)
Outputs
Rated output current
Residual voltage
Leakage current
Insulation method
Output indicators
0.3 A/point
0.6 V max.
0.1 mA max.
Photocoupler
LED (yellow)
3
CHARACTERISTICS
Communications power supply
voltage
I/O power supply voltage
I/O power supply current
Current consumption
(See Note)
Connection method
Connecting Units
Dielectric strength
Noise immunity
Vibration resistance
Shock resistance
Mounting strength
Terminal strength
Screw tightening torque
Ambient temperature
Ambient humidity
Weight
Approved standards (4/8 points)
14 to 26.4 VDC
24 VDC
+10%
/
--15%
1 A max.
50 mA max. at 24 VDC
Multi-drop method and T-branch method
Secondary branches cannot be connected to T-branch lines.
4-point and 8-point Terminals: 16 Input Terminals and 16 Output Terminals per Master
16-point Terminals:
8 Input Terminals and 8 Output Terminals per Master
500 VAC for 1 minute (1 mA sensing current between insulated circuits)
Power supply normal:
±600
V for 10 minutes with a pulse width of 100 ns to 1
µs
Power supply common:
±1,500
V for 10 minutes with a pulse width of 100 ns to 1
µs
10 to 55 Hz, 1.5--mm double amplitude
Malfunction: 200 m/s
2
Destruction: 300 m/s
2
No damage when 50 N pull load was applied for 10 s in all directions
No damage when 50 N pull load was applied for 10 s
0.6 to 1.18 N
:
m
Operating:
Storage:
Operating:
0°C to 55°C (32°F to 131°F) with no icing or condensation
--20°C to 65°C (--4°F to 149°F) with no icing or condensation
35% to 85% RH
4-point and 8-point Terminals: 80 g max.
16-point Terminals:
110 g max.
UL 508, CSA C22.2 No. 14
Note: The above current consumption is the value with all 4 and 8 and 16 points turned ON excluding the current consumption of the
external sensor connected to the input Remote Terminal and the current consumption of the load connected to the output Remote
Terminal.
2
SRTP-ID/OD
P
SRTP-ID/OD
P
Nomenclature
PWR
COMM
ERR
0 to 7
Screw mounting hole
I/O Terminals
I/O Power Supply Terminals
Connect 24 VDC power supply
Communications Power Supply Terminals
Connect 14 to 26.4 VDC power supply.
CompoBus/S Terminal
Connect the CompoBus/S
communications cable.
DIP Switches
Used for node number setting, baud rate setting, and holding or
clearing outputs for communications error.
Refer to the
Compobus/S Operation Manual (W266)
for details on
DIP switch settings.
3
INDICATORS
Indicator
PWR
COMM
ERR
0 to 7
Lit
Not lit
Lit
Not lit
Lit
Not lit
Lit
Not lit
Yellow
Red
Yellow
Display
Color
Green
Meaning
The communications power supply is ON.
The communications power supply is OFF.
Normal communications
A communications error has occurred or the Unit is in standby status.
A communications error has occurred.
Normal communications or the Unit is in standby status.
The corresponding I/O signal is ON.
The corresponding I/O signal is OFF.
3
SRTP-ID/OD
P
3
DIP SWITCH SETTINGS
Output HOLD/CLEAR settings (Output Terminals only)
Baud rate setting
SRTP-ID/OD
P
Node Number Settings
Output HOLD/CLEAR Mode
Mode
HOLD
CLEAR
ON
OFF (default)
Pin 1
Output status is maintained.
Output status is cleared when a communications error occurs.
Setting
Baud Rate Setting
Mode
Long distance
High speed
ON
OFF (default)
Pin 2
Setting
Sets the I/O block to communicate in a long distance (500 m) CompoBus/S system.
Sets the I/O block to communicate in a high speed (750 kbps) CompoBus/S system.
Note: SRT1 models will not operate properly if Pin 2 is set to “ON.”
Node Number Settings
Node number
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
ON
Pin 3
8
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
Pin 4
4
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
Pin 5
2
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Pin 6
1
Note: 1. The node number is factory--set to 0.
2. For node number settings, refer to the
CompoBus/S Operation Manual (W266).
4
SRTP-ID/OD
P
SRTP-ID/OD
P
Dimensions
Unit: mm (inch)
SRT1-ID04 (-1), SRT1-OD04 (-1)
SRT2-ID04 (-1), SRT2-OD04 (-1)
SRT1-ID08 (-1), SRT1-OD08 (-1)
SRT2-ID08 (-1), SRT2-OD08 (-1)
54
(2.12)
27
11
20.5
65
(2.56)
Sixteen, M3
Mounting Holes
Two, 4.2 dia. or M4
48
(1.89)
68
±
0.2 (2.68
±
0.008)
80 (3.15)
SRT1-ID16 (-1), SRT1-OD16 (-1)
SRT2-ID16 (-1), SRT2-OD16 (-1)
105 (4.13)
54
(2.12)
27
(50)
20.5
11
50
22--M3
84
48
(1.89)
28
Mounting Holes
Two, 4.2 dia. or M4
93
±
0.2 (3.66
±
0.008)
5
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