Modbus
note
Make sure the sensor is in modbus mode
- Connect sensor to power and control system
- Select correct com port
- Select Speed = 57600 (default setting), Data = 8,N,1 (8 Bit, 0 Parity, 1 Stop Bit)
Modbus Integration
tip
After sending the scan command there is a 90s delay before the sensor will return a valid pH value
note
The modbus address defaults to 0x55 but can be user configured
| Objective | Notes | Modbus Function | Command | Example Response | Source | Type | Endianess |
|---|---|---|---|---|---|---|---|
| Start Fresh water scan | Fresh water value 0x0003 | 5 | 55 05 00 00 00 03[CRCL:CRCH] | 55 05 00 00 00 03[CRCL:CRCH] | |||
| Only this coil can be on | 5 | 55 05 00 0A FF 00[CRCL:CRCH] | 55 05 00 0A FF 00[CRCL:CRCH] | Coil | |||
| Fresh water value 0x0003 | 6 | 55 06 00 00 00 03[CRCL:CRCH] | 55 06 00 00 00 03[CRCL:CRCH] | Input register | Big | ||
| Start Ocean water scan | Ocean water value 0x0004 | 5 | 55 05 00 00 00 04[CRCL:CRCH] | 55 05 00 00 00 04[CRCL:CRCH] | |||
| Only this coil can be on | 5 | 55 05 00 0C FF 00[CRCL:CRCH] | 55 05 00 0C FF 00[CRCL:CRCH] | Coil | |||
| Ocean water value 0x0004 | 6 | 55 06 00 00 00 04[CRCL:CRCH] | 55 06 00 00 00 04[CRCL:CRCH] | Input register | Big | ||
| Start Fresh water single result | Fresh water single value 0x0005 | 5 | 55 05 00 00 00 05[CRCL:CRCH] | 55 05 00 00 00 05[CRCL:CRCH] | |||
| Only this coil can be on | 5 | 55 05 00 0B FF 00[CRCL:CRCH] | 55 05 00 0B FF 00[CRCL:CRCH] | Coil | |||
| Fresh water single value 0x0005 | 6 | 55 06 00 00 00 05[CRCL:CRCH] | 55 06 00 00 00 05[CRCL:CRCH] | Input register | Big | ||
| Start Ocean water single result | Ocean water single value 0x0006 | 5 | 55 05 00 00 00 06[CRCL:CRCH] | 55 05 00 00 00 06[CRCL:CRCH] | |||
| Only this coil can be on | 5 | 55 05 00 0D FF 00[CRCL:CRCH] | 55 05 00 0D FF 00[CRCL:CRCH] | Coil | |||
| Ocean water single value 0x0006 | 6 | 55 06 00 00 00 06[CRCL:CRCH] | 55 06 00 00 00 06[CRCL:CRCH] | Input register | Big | ||
| Stop Fresh water scan | 5 | 55 05 00 00 00 00[CRCL:CRCH] | 55 05 00 00 00 00[CRCL:CRCH] | ||||
| 5 | 55 05 00 0A 00 00[CRCL:CRCH] | 55 05 00 0A 00 00[CRCL:CRCH] | Coil | ||||
| 6 | 55 06 00 00 00 00[CRCL:CRCH] | 55 06 00 00 00 00[CRCL:CRCH] | Input register | Big | |||
| Stop Ocean water scan | 5 | 55 05 00 00 00 00[CRCL:CRCH] | 55 05 00 00 00 00[CRCL:CRCH] | ||||
| 5 | 55 05 00 0C 00 00[CRCL:CRCH] | 55 05 00 0C 00 00[CRCL:CRCH] | Coil | ||||
| 6 | 55 06 00 00 00 00[CRCL:CRCH] | 55 06 00 00 00 00[CRCL:CRCH] | Input register | Big | |||
| Stop Fresh water single result | 5 | 55 05 00 00 00 00[CRCL:CRCH] | 55 05 00 00 00 00[CRCL:CRCH] | ||||
| 5 | 55 05 00 0B 00 00[CRCL:CRCH] | 55 05 00 0B 00 00[CRCL:CRCH] | Coil | ||||
| 6 | 55 06 00 00 00 00[CRCL:CRCH] | 55 06 00 00 00 00[CRCL:CRCH] | Input register | Big | |||
| Stop Ocean water single result | 5 | 55 05 00 00 00 00[CRCL:CRCH] | 55 05 00 00 00 00[CRCL:CRCH] | ||||
| 5 | 55 05 00 0D 00 00[CRCL:CRCH] | 55 05 00 0D 00 00[CRCL:CRCH] | Coil | ||||
| 6 | 55 06 00 00 00 00[CRCL:CRCH] | 55 06 00 00 00 00[CRCL:CRCH] | Input register | Big | |||
| Multiple Coils (0x0F) | Only one coil can be on | 15 | 55 0F 00 0A 00 04 01 0n[CRCL:CRCH] | 0x0n; 0=Stop, 1=Fresh, 2=Fresh1, 4=Ocean, 8=Ocean1 | Multiple coil | ||
| Get Current pH Value | pH value options | 3 | 55 03 00 00 00 02 [CRCL:CRCH] | 55 03 04 41 00 00 00[CRCL:CRCH] | Holding | Floating point 32bit | Big |
| Get Current Temperature (in C) | Latest Temperature | 3 | 55 03 00 02 00 02 [CRCL:CRCH] | 55 03 04 41 94 00 00[CRCL:CRCH] | Holding | Floating point 32bit | Big |
| Get Salinity | Latest Salinity | 3 | 55 03 00 04 00 02 [CRCL:CRCH] | 55 03 04 41 94 00 00[CRCL:CRCH] | Holding | Floating point 32bit | Big |
| Get Conductivity | Latest Conductivity | 3 | 55 03 00 06 00 02 [CRCL:CRCH] | 55 03 04 41 94 00 00[CRCL:CRCH] | Holding | Floating point 32bit | Big |
| Get Transducer Health Status | Transducer Health options | 3 | 55 03 00 08 00 01 [CRCL:CRCH] | 55 03 02 00 00[CRCL:CRCH] | Holding | Single digit integer | |
| Get Sensor Diagnostics | Sensor Diagnostics options | 3 | 55 03 00 09 00 01 [CRCL:CRCH] | 55 03 02 00 00 [CRCL:CRCH] | Holding | Single digit integer | |
| Get Bulk Results | All data from scan (pH, temp, salinity, conductivity) | 3 | 55 03 00 00 00 09 [CRCL:CRCH] | 55 03 02 41 00 00 00 41 94 00 00 41 94 00 00[CRCL:CRCH] | Holding | Floating point 32bit | Big |
| Get Sensor Serial Number | Serial number = 000000 | 3 | 55 03 00 0A 00 03 [CRCL:CRCH] | 55 03 06 30 30 30 30 30 30 [CRCL:CRCH] | Holding | 6 digit integer | |
| Get Sensor Manufacturer | Manufacturer = ANB Sensors | 3 | 55 03 00 0D 00 08 [CRCL:CRCH] | 55 03 10 41 4E 42 53 65 6E 73 6F 72 73 00 00 00 00 00 00 [CRCL:CRCH] | Holding | 16 Alpha characters | |
| Get Sensor Name | Name = DEVICE_NAME | 3 | 55 03 00 15 00 08 [CRCL:CRCH] | 55 03 10 44 65 76 69 63 65 5F 4E 61 6D 65 [CRCL:CRCH] | Holding | 16 Alphanumeric characters | |
| Get Sensor Sub Name | Sub Name = DEVICE_SUB_NAME | 3 | 55 03 00 1D 00 08 [CRCL:CRCH] | 55 03 10 44 65 76 69 63 65 5F 53 75 62 5F 4E 61 6D 65 [CRCL:CRCH] | Holding | 16 Alphanumeric characters | |
| IF Firmware Version Revision | Version = I35.0 | 3 | 55 03 00 25 00 08 [CRCL:CRCH] | 55 03 10 56 33 35 30 2E 30 41 20 20 20 20 20 20 20 20 20 [CRCL:CRCH] | Holding | 16 Alphanumeric characters | |
| DV Firmware Version Revision | Version = D23.7 | 3 | 55 03 00 2D 00 08 [CRCL:CRCH] | 55 03 10 44 56 52 56 32 33 2E 37 0D 00 00 00 00 00 00 0D [CRCL:CRCH] | Holding | 16 Alphanumeric characters | |
| Get Interval Time | Minutes between successive array scans | 3 | 55 03 00 36 00 01 [CRCL:CRCH] | 55 03 02 00 00 [CRCL:CRCH] | Holding | 3 digit integer | |
| Set Interval Time | Minimum 15 minutes or zero | 6 | 55 06 00 36 00 0F [CRCL:CRCH] | 55 06 00 2E 00 0F [CRCL:CRCH] | Holding | 3 digit integer | |
| Set Module Address | Set address to 0xAA (170dec) on next bootup | 5 | 55 05 00 39 00 AA [CRCL:CRCH] | 55 05 00 39 00 AA [CRCL:CRCH] | Holding | ||
| Change modbus external address | 6 | 55 06 00 39 00 AA [CRCL:CRCH] | 55 06 00 39 00 AA [CRCL:CRCH] | Input register | Big | ||
| Set Baudrate | Change Baudrate | 5 | 55 05 00 3A 00 07 [CRCL:CRCH] | 55 05 00 3A 00 07 [CRCL:CRCH] | Holding | Single digit integer | |
| Active at next bootup | 6 | 55 06 00 3A 00 07 [CRCL:CRCH] | 55 06 00 3A 00 07 [CRCL:CRCH] | Input register | Big | ||
| Set Interface Mode | Change Interface mode | 5 | 55 05 00 3B 00 0n [CRCL:CRCH] | n; 1=change to terminal, 2=change to modbus | Holding | Single digit integer | |
| Changes after reboot | 6 | 55 06 00 3B 00 0n [CRCL:CRCH] | n; 1=change to terminal, 2=change to modbus | Input register | Big | ||
| Get Immersion Rule | Effective immediately | 3 | 55 03 00 3C 00 01 [CRCL:CRCH] | 55 03 02 00 01 [CRCL:CRCH] | Holding | Single digit integer | |
| Set Immersion Rule | Effective immediately | 5 | 55 05 00 3C 00 02 [CRCL:CRCH] | 55 05 00 3C 00 02 [CRCL:CRCH] | Holding | Single digit integer | |
| Effective immediately | 6 | 55 06 00 3C 00 02 [CRCL:CRCH] | 55 06 00 3C 00 02 [CRCL:CRCH] | Input register | Big | ||
| Get RTC Time | Current RTC Time | 3 | 55 03 00 3D 00 06 [CRCL:CRCH] | 55 03 0C 00 39 00 26 00 16 00 31 00 05 00 23 [CRCL:CRCH] | Holding | 6 x 16bit bytes | |
| Set RTC | Set new RTC time | 16 | 55 10 00 3D 00 06 0C 00 00 00 30 00 17 00 02 00 07 00 28 [CRCL:CRCH] | 55 10 00 5A 00 06 [CRCL:CRCH] | Holding | 6 x 16bit bytes |
tip
On opening anb_utils the sensor will automatically return to terminal interface
or
Type #700 to exit modbus mode via terminal