E+E Elektronik Modbus MOP301, Руководство пользователя

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User Manual MOP301 Digital Moisture in Oil Immersion Probe
Device information (INT16)
Parameter
Register number
1)
[Dec] Register address
2)
[Hex]
Read register: function code 0x03 / 0x04
Serial number (as ASCII) 1 0x00
Firmware version 9 0x08
Sensor name 10 0x09
Device status (bit decoded)
3)
602 0x259
1) Register number starts from 1.
2) Protocol address starts from 0.
3) See chapter 5.5 Device Status Indication.
Tab. 4 MOP301 device information registers
5.3 Modbus Register Map
The measured data is saved as a 32 bit floating point values (data type FLOAT32) and as 16 bit signed
integer values (data type INT16).
FLOAT32:
Parameter Unit Register number
1)
[Dec] Register address
2)
[Hex]
Read register: function code 0x03 / 0x04
Water activity aw - 1135 0x46E
Water content x ppm 1141 0x474
Temperature T
°C 1003 0x3EA
°F 1005 0x3EC
Saturation % 1137 0x470
Oil parameter A - 0224 0xDF
Oil parameter B - 0226 0xE1
Write register: function code 0x10
Oil parameter A
3)
- 0101 0x64
Oil parameter B
3)
- 0103 0x66
1) Register number starts from 1
2) Register address starts from 0
3) Examples: Writing Parameter A -2663.30005 decimal: 46 10 00 64 00 02 04 74 CD C5 26 E3 44
Writing Parameters A and B -1663.30005 and 7.3705 decimal: 46 10 00 64 00 04 08 E9 9A C4 CF DB 23 40 EB CA 19
If two parameters are to be uploaded, it is recommended to write them with a single command.
Tab. 5 MOP301 FLOAT32 measured data registers
INT16 (read register):
Parameter Unit Scale
3)
Register number
1)
[Dec] Register address
2)
[Hex]
Read register: function code 0x03 / 0x04
Water activity aw - 1000 4068 0xFE3
Water content x ppm 0.1 4071 0xFE6
Temperature T
°C 100 4002 0xFA1
°F 50 4003 0xFA2
°K 50 4005 0xFA4
Saturation % 10 4069 0xFE4
1) Register number starts from 1
2) Register address starts from 0
3) Examples: For scale 100, the reading of 2550 means a value of 25.5. For scale 50, the reading of 2550 means a value of 51.
Tab. 6 MOP301 INT16 measured data registers
5.4 Freely Configurable Custom Modbus Map
It is possible to map measured value/status registers arbitrarily in a block with up to 20 registers provided
for this purpose. This means that registers of interest may be mapped in an area with consecutive
registers, so that important values can be queried with a single command in one block.
The custom map can be configured via:
1. PCS10 Product Configuration Software and the Modbus configuration adapter HA011018.
The PCS10 can be downloaded free of charge from www.epluse.com/pcs10 .
2. Modbus protocol commands, refer to the example in chapter 5.6 Modbus RTU Examples.