Compatible Devices
Unitronics PLCs [g3-unitronics | Word]
Verified Device
M90-19-B1A [g3-unitronics | Word]
Driver Selection
No options required [g3-unitronics | Word]
Device Selection
Select the PLC address using System Integer 8. [g3-unitronics | Word]
Accessible Data
| Selection | Description |
|---|---|
| A | Output Bit |
| B | Memory Bit |
| E | Input Bit |
| G | System Bit |
| M | Counter Scan Bit |
| T | Timer Scan Bit |
| MI | Memory Integer |
| ML | Memory Long |
| MD | Memory Double Word |
| MR | Memory Real |
| SI | System Integer |
| SL | System Long |
| SD | System Double Word |
| TP | Timer Preset (Integer) |
| TV | Timer Current Value (Integer) |
| CP | Counter Preset (Integer) |
| CV | Counter Current Value (Integer) |
| RT | Real Time Clock (Byte per item) |
Notes
- Not all PLC models support every selection
- Available address ranges may differ by device
- Programmer must ensure compatibility with the target PLC [g3-unitronics | Word]
Real Time Clock (RT)
| Address | Description |
|---|---|
| RT0 | Seconds |
| RT1 | Minutes |
| RT2 | Hours |
| RT3 | Day of Week (1 = Sunday) |
| RT4 | Date |
| RT5 | Month |
| RT6 | Year |
- Each item is one byte
- Unwritten values retain the most recently read data [g3-unitronics | Word]
Cable Information
RS-232
| 232 Port | DB9-S | G3 |
|---|---|---|
| B | 2 | 2 |
| C | 3 | 5 |
| A/D | 5 | 3/4 |
RS-485
| Signal | G3 |
|---|---|
| TxA | 7 |
| TxB | 8 |
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