Compatible Devices
Devices supporting SPI serial protocol [spi | Word]
Verified Device
Advantage Sentra HE Series [spi | Word]
Overview
Designed for communication with SPI tributary stations [spi | Word]
Device Configuration
-
Device ID Code
- Must match tributary station documentation
-
Device Address
- Range:
0x20 – 0xFF - Use raw value expected by device [spi | Word]
- Range:
Accessing Data
Data Types
| Prefix | Size |
|---|---|
| SPIL | 32-bit |
| SPIW | 16-bit |
| SPIB | 8-bit |
Register Addressing
- Uses:
- CMD1
- CMD2
- These define the register address per SPI protocol [spi | Word]
Read / Write Behavior
- Access controlled via tag configuration
- For R/W registers:
- Bit 0 of CMD2 automatically set based on operation [spi | Word]
Notes
- No blanket polling support [spi | Word]
Cable Information
| G3 RS485 | Sentra HE (DB9) |
|---|---|
| 1 - TxA | 4 (TD+/RD+) |
| 2 - TxB | 5 (TD-/RD-) |
| 6 - Ground | 1 (Common) |
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