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Overview Section 4-1
4-1 Overview
4-1-1 Specifications Shared by the Units
The following tables show the specifications common to all of the Digital I/O
Units. For details on other specifications, refer to the pages describing the
individual Slice I/O Unit.
Specifications
Note Some specifications are different for the GRT1-ROS2 Relay Output Unit. For
details, refer to 4-6-5 Two-point Relay Output Unit: GRT1-ROS2.
4-1-2 I/O Data
The following table lists the I/O data allocated to each Digital I/O Unit. Refer
also to 2-2-2 I/O Allocations in the Slice I/O Terminal’s Master Unit.
Item Specification
Unit power supply voltage 24 VDC (20.4 to 26.4 VDC)
I/O power supply voltage 24 VDC (20.4 to 26.4 VDC)
Noise immunity Conforms to IEC61000-4-4, 2.0 kV (power supply
line)
Vibration resistance 10 to 60 Hz: 0.7 mm double amplitude
60 to 150 Hz: 50 m/s
2
Shock resistance
150 m/s
2
Withstand voltage 500 VAC (between isolated circuits)
Insulation resistance 20 MΩ min. (between isolated circuits)
Ambient operating temperature
−10 to 55
°C (with no icing or condensation)
Ambient operating humidity 25% to 85%
Operating environment No corrosive gases
Ambient storage temperature
−25 to 65
°C (with no icing or condensation)
Mounting 35-mm DIN Track mounting
Unit name I/O allocation Size Remarks
GRT1-ID4 Bits 4 input bits ---
GRT1-ID4-1 Bits 4 input bits ---
GRT1-IA4-1 Bits 4 input bits ---
GRT1-IA4-2 Bits 4 input bits ---
GRT1-OD4 Bits 4 output bits ---
GRT1-OD4-1 Bits 4 output bits ---
GRT1-OD4G-1 Bits 4 output bits ---
GRT1-OD4G-3 Bits 4 output bits ---
GRT1-ROS2 Bits 2 output bits ---
GRT1-ID8 Word 1 input word Bits 8 to 15 are not used.
GRT1-ID8-1 Word 1 input word Bits 8 to 15 are not used.
GRT1-OD8 Word 1 output word Bits 8 to 15 are not used.
GRT1-OD8-1 Word 1 output word Bits 8 to 15 are not used.
GRT1-OD8G-1 Word 1 output word Bits 8 to 15 are not used.
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