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DeviceNet Communications Unit


DeviceNet-compliant Interface Unit with up to 1,024 I/O Points at One Node

General Specifications

Model GRT1-DRT
Network power supply voltage 11 to 25 V DC (Supplied from the communications connector)
Unit power supply voltage 20.4 to 26.4 VDC (24 VDC -15%/+10%)
I/O power supply voltage 20.4 to 26.4 VDC * (24 V +10%/-15%)
Noise immunity Conforms to IEC 61000-4-4, 2 kV (power line)
Vibration resistance 10 to 60 Hz, 0.7-mm double amplitude 60 to 150 Hz: 50 m/s2
Shock resistance 150 m/s2
Dielectric strength 500 V AC between isolated circuits
Insulation resistance 20 M Ω min. between isolated circuits
Ambient operating temperature -10°C to 55°C (with no icing or condensation)
Ambient operating humidity 25% to 85%
Ambient operating atmosphere No corrosive gases
Ambient storage temperature -25°C to 65°C (with no icing or condensation)
Mounting method DIN 35 mm-track mounting

* For power supply input to the Slice I/O Units.

DeviceNet Communications Unit Specifications

Model GRT1-DRT
I/O points 1,024 max. (128 bytes), including inputs and outputs
Connectable Slice I/O Units 64 max.
Communications with Slice I/O Units 64 Units max. in a horizontal connection configuration (for an extension of approx. 2 m max.)
Power consumption is limited to 80 W per block, and the extension must be done using
Turnback Cables (two 1-m cables max., for a distance of 2 m max.)
Slice I/O Unit data capacity (1) 0, 2, or 4 bits
(2) 0 to 16 words (in word increments)
Status flags One word is allocated (Communications Unit Status Flags)
Parameter back-up and restore
2 KB of data can be backed up and restored per Unit
Message communications function Supported
Automatic baud rate detection Supported
Connector 1 DeviceNet open connector with screws Connectable with multi-drop connector
Terminals 2 terminals for I/O power supply, 2 terminals for Unit power supply
Power supply per 1 block 80 W max. (Unit power supply)
I/O power supply consumption current 4 A max.
Weight 137 g