pH ARC Sensors Modbus RTU Programmer’s Manual (EPHUM011)
Command: Info user | Modbus address: 1568 | Length: 8 | Type: 16 | Write | ||
Parameter: | Text |
|
|
|
|
|
Format: | Character |
|
|
|
|
|
Value: | Hello World |
|
|
|
|
|
Figure 2.9.3.2: | Example to write 16 | ASCII characters to register 1568 with operator A or S. |
| |||
|
|
|
|
| ||
Command: Info user | Modbus address: 1568 | Length: 8 | Type: 3 | Read | ||
Parameter: | Text |
|
|
|
|
|
Format: | Character |
|
|
|
|
|
Value: | Hello World |
|
|
|
|
|
Figure 2.9.3.3: Example to read the register 1568 (written in figure 2.9.1.6).
2.10 System Commands
2.10.1 Recall Sensor’s Factory Settings
Using register 8192 you can recall the sensor manufacturer values (interfaces, calibration data and passwords), except the SIP and CIP data which remain unchanged. By sending the recall value “732255”, all configuration values will be set to default.
Start |
| Number of | Reg1 / Reg2 | Modbus |
| Read | Write |
| ||||
register |
| registers |
|
|
| function code |
| access | access |
| ||
8192 |
| 2 |
| Recall by value 732255 | 16 |
|
| none | S |
| ||
Figure 2.10.1.1: Definition of register 8192. |
|
|
|
|
|
| ||||||
|
|
|
|
|
|
|
|
|
| |||
Command: Recall |
| Modbus address: 8192 | Length: 2 |
| Type: 16 | Write |
| |||||
Parameter: |
| Recall |
|
|
|
|
|
|
|
|
| |
Format: |
| Decimal |
|
|
|
|
|
|
|
|
| |
Value: |
| 732255 |
|
|
|
|
|
|
|
|
| |
Figure 2.10.1.2: Example to write the restore command.
3 | Abbreviations |
AO | Analog Output Interface |
CP | Calibration Point |
ECS | Electrochemical Sensor Interface |
PMC | Primary Measurement Channel |
SMC | Secondary Measurement Channel |
624300/01 | page 66 / 67 |
