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GE Fanuc HE693DNT250 DeviceNet Master Scanner Series
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- Part Number: HE693DNT250
- Brand: General Electric
- Type: Motor Management Relay
- Dimensions: 4x18.5x12.7cm
- Country of Origin: USA
- Barcode: 8537101190
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Additional Specifications
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Product Description
The GE Fanuc HE693DNT250, also cataloged as the HE693DNT250 DeviceNet Master Scanner, serves as the primary HE693DNT250 network master utilized to execute high-speed serial data arbitration across DeviceNet field networks. This slot-mounted communication processor establishes an intelligent multi-drop gateway between a host Series 90-30 PLC backplane and up to 63 distributed slave nodes.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | HE693DNT250 |
| Brand | GE Fanuc (Horner Electric) |
| Origin | United States |
| Weight | 0.4 kg net hardware mass profile |
| Dimensions | 90 mm x 70 mm x 125 mm |
| Product Type | DeviceNet Master / Scanner Module |
| Supported Baud Rates | 125 kbps, 250 kbps, 500 kbps (Software/Hardware selectable) |
| Maximum Node Capacity | 63 slave devices total |
| Network Topology | Multi-drop configuration trunk/drop-line architecture |
| Maximum Cable Distance | Up to 1500 feet (dependent on baud rate and cable gauge) |
| DeviceNet Network Power | 11-25 VDC external network rail input |
| Network Current Load | 65 mA maximum current draw from DeviceNet bus |
| PLC Backplane Logic Load | 175 mA maximum current draw from 5 VDC PLC bus |
| PLC Backplane Relay Load | Not used (0 mA consumption) |
| Operating Temp | 0 to +65 deg C continuous ambient bounds |
| Storage Temp | -40 to +85 deg C extreme storage boundaries |
| Relative Humidity | 5% to 95%, non-condensing environment |
Industrial Control and Drive Dynamics
- Backplane Bus Communication Velocity and Processing Matrix: The master scanner internal logic bridges the parallel high-speed Series 90-30 backplane bus straight to the serial DeviceNet transceiver registers. The card continuously updates input/output process variable tables, mapping discrete bits and explicit messaging variables into the PLC CPU register block without creating processing latencies or cycle-time delays.
- Profinet / EtherNet/IP Deterministic Networks and I/O Density Scaling: While native to CAN-based DeviceNet protocols, the scanner acts as a localized controller managing up to 63 slave nodes. To maximize I/O density scaling profiles, the module handles large quantities of analog and digital data streams simultaneously, sorting explicit configuration packets and real-time I/O updates into distinct operational memory zones.
Frequently Asked Questions
Q: How does the network baud rate impact the maximum transmission distance of the DeviceNet trunk line?
A: Transmission distance behaves inversely to network velocity. Running the module at its lowest baud rate of 125 kbps permits a maximum thick-trunk line length of up to 1500 feet, whereas accelerating data velocity to the 500 kbps maximum caps the physical trunk distance boundary at approximately 328 feet (100 meters).
Q: Does the HE693DNT250 draw its internal processing logic power from the external DeviceNet power line?
A: No. The board maintains separate power paths for data isolation. The primary processing chips draw up to 175 mA directly from the Series 90-30 PLC backplane 5 VDC logic rail, while the external 11-25 VDC DeviceNet connection supplies 65 mA specifically to drive the isolated network transceiver circuitry.
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