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Remote I/O Modules Section 5-3
5-3 Remote I/O Modules
5-3-1 SRT@-@D16P Remote I/O Modules
Specifications The following tables show the ratings and I/O specifications for the SRT@-
@D16P.
Ratings
Note The current consumption is the value with all points turned ON excluding the
current consumption of the external sensors connected to the Module inputs
and the current consumption of the loads connected to the Module outputs.
Characteristics
Input Specifications
Item Specification
Models SRT1-ID16P
SRT2-ID16P
SRT1-OD16P
SRT2-OD16P
I/O points 16 input points 16 output points
Internal I/O circuit common NPN (+ common) NPN (– common)
Mounting method PCB mounting with I/O terminals soldered
Communications mode SRT1-@D16P: High-speed communications mode
SRT2-@D16P: High-speed Communications Mode or
Long-distance Communications Mode
Power supply type ---
Communications power
supply voltage
20.4 to 26.4 V DC
I/O power supply voltage
24 V DC
+10%
/
–15%
Current consumption
(See note.)
60 mA max. 20 mA max.
Ambient temperature Operating: 0 to 55°C (with no icing or condensation)
Storage: –20 to 65°C (with no icing or condensation)
Ambient humidity Operating: 35% to 85% (with no condensation)
Storage: 25% to 85% (with no condensation)
Dielectric strength 500 V AC for 1 minute
(1-mA sensing current, between insulated circuits)
Node number settings The node number is set on the address terminal.
(Set the node number before turning ON the Slave.)
Weight 35 g max.
Item Specification
5-V output current 20 mA max. (at 5 V±0.5 V)
LED drive current
(COMM, ERR)
10 mA max. (5 V DC)
SW carry current
(ADR0 to 3, HOLD)
1 mA max.
Item Specification
Input current 2 mA max./point
ON delay time 1.5 ms max.
OFF delay time 1.5 ms max.
ON voltage 15 V DC min.
(between each input terminal and BS+ terminal)
OFF voltage 5 V DC max.
(between each input terminal and BS+ terminal)
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