MODBUS2 communication driver for Transfix controller is the driver to communicate with Transfix controller of Kelman Ltd.
<Figure 1> is MODBUS2 communication driver read setting examples.
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| <Figure 1> Read setting example of MODBUS2 communication driver |
Device part of <Figure 1> input Com Port(COM1), Baud Rate(9600), Parity Bit(0), Data Bit(8), Stop Bit(1) respectively, according to setting of controller.
In protocol option part, you can set the following: whether to check CRC(1 = check, 0 = No check), bit write value that corresponds to ON(Default = 65280), protocol type(1 = IP protocol, 0 = Serial protocol), bit write value that corresponds to OFF(Default = 0), whether to use WORD size(1 = Not using WORD size, 0 = using WORD size, Default = 0), whether to use multi write(0 = Not using multi write, 1 = using multi write, Default = 0), state value storage position for comparison of data(input WORD memory address, Defualt = 1000). Each argument is a comma-delimited.
Note) MODBUS IP protocol is used in systems that are connected by Ethernet(TCP/IP or UDP/IP).
MODBUS2 communication driver read schedule
Read schedule setting parameters are as follows:
1) STATION – Input equipment ID between 0 ~ 255
2) Read Command – Read command.
3 – Reading the data of WORD unit.
3D – Reading the data of DWORD unit ( WORD order : LO, HI ).
3d – Reading the data of DWORD unit ( WORD order : HI, LO ).
3lD, 3LD – Reading the data of 8 BYTE unit ( WORD order : LO, HI ).
3ld, 3Ld – Reading the data of 8 BYTE unit ( WORD order : HI, LO ).
3M – Reading the special data[HI WORD x 10000 + LO WORD] of DWORD unit ( WORD order : LO, HI ).
3m – Reading the special data[HI WORD x 10000 + LO WORD] of DWORD unit ( WORD order : HI, LO ).
3lM, 3LM – Reading the special data[HI WORD x 10000 + LO WORD] of 8 BYTE unit ( WORD order : LO, HI ).
3lm, 3Lm – Reading the special data[HI WORD x 10000 + LO WORD] of 8 BYTE unit ( WORD order : HI, LO ).
3s – Reading the special data[16 BYTE BCD ASCII].
3F – Reading the data of FLOAT unit ( WORD order : LO, HI ).
3F2 – Reading the data of FLOAT unit ( WORD order : LO, HI ).
3f – Reading the data of FLOAT unit ( WORD order : HI, LO ).
3f2 – Reading the data of FLOAT unit ( WORD order : HI, LO ).
1X, 2X – Reading the data of BIT unit ( 1xxxx, 2xxxx Modbus address ).
1XB, 2XB – Reading the data of BIT unit ( 1xxxx, 2xxxx Modbus address ).
3B – Reading the data of BYTE unit.
TRANS – Historical Records reading of Transfix controller.
3) Read Start Address – Input address of equipment. ( Modbus address - 1 )
when 'TRANS' read command = reading Record index.
4) Save Start Address for Communication Server – Input Memory Start Address which will store the data from equipment.
5) Read Size – Input the read size of data.
3 – WORD unit,
3D, 3d, 3M, 3m, 3F, 3F2, 3f, 3f2 – 2 WORD unit,
3LD, 3ld, 3LM, 3lm – 4 WORD unit.
3s – 8 WORD unit,
1X, 2X – WORD unit,
1XB, 2XB – BIT unit ( 1 ~ 15 = 1 WORD, 16 ~ 31 = 2 WORD, …).
3B – BYTE unit,
TRANS - fixed to 226 byte.
Read schedule example)
READ, 1, 3, 0, 0, 32,
DWORD, 1, 3d, 200, 0, 50,
DWORD, 1, 3d, 300, 50, 50,
DWORD, 1, 3F, 2000, 0, 50,
<Table 1> is data saving address and contents for Historical Records( TRANS command ).
The readed data of TRANS read command store the same data in WORD, DWORD, FLOAT memory, but the data format are different.
| Data saving address | Contents | Rnage |
| Start addr + 0 | Number | 0 ~ 7FFFh |
| Start addr + 1 | Oil Source | 0 ~ 2 = Oil Source A ~ C |
| Start addr + 2 | Year | 0 ~ 9999 |
| Start addr + 3 | Month | 1 ~ 12 |
| Start addr + 4 | Day | 1 ~ 31 |
| Start addr + 5 | Hour | 0 ~ 23 |
| Start addr + 6 | Min | 0 ~ 59 |
| Start addr + 7 ~ 8 | PGA/Host Firmware Version | 16BIT(WORD) DATA |
| Start addr + 9 ~ 10 | Alarm Conc/ROC Status | |
| Start addr + 11 | Alarm Output Status | |
| Start addr + 12 | Measurement Flags | |
| Start addr + 13 |
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| Start addr + 14 | Error Codes | 32BIT(DWORD) DATA |
| Start addr + 15 | Measurement Duration(sec) | WORD |
| Start addr + 16 | Spare | fixed to 0 (WORD) |
| Start addr + 17 | H2 | Float 값, PPM |
| Start addr + 18 | CO2 | |
| Start addr + 19 | CO | |
| Start addr + 20 | C2H4 | |
| Start addr + 21 | C2H6 | |
| Start addr + 22 | CH4 | |
| Start addr + 23 | C2H2 | |
| Start addr + 24 | H2O | |
| Start addr + 25 | O2 | |
| Start addr + 26 | TDCG | |
| Start addr + 27 | N2 | |
| Start addr + 28 | TDG | |
| Start addr + 29 | Oil Pressure | Float value, kPa |
| Start addr + 30 | Oil Temperature | Float value, ℃ |
| Start addr + 31 | Ambient Temperature | |
| Start addr + 32 | Normalization Temperature | |
| Start addr + 33 ~ 38 | AI 1 ~ 6 | Float value, user defined unit |
| Start addr + 39 ~ 42 | Spare | Float value, fixed to 0 |
| Start addr + 43 ~ 56 | Reserved 1 ~ 14 | Float value |
| Start addr + 57 ~ 63 | Spare | Float value |
| Start addr + 64 | Spare | WORD value |
| <Table 1> Data saving address and contents for Historical Records( TRANS command ) | ||
If you click the icon 
in protocol option part, you can see the
dialogue box such as <Figure 2>. you can also set read schedule by using
this part.
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| <Figure 2> Example of MODBUS2 communication driver’s Option dialog box |
You can set read schedule by using 
, 
, 
button and listbox of <Figure
2>.
Also, in Modus Protocol Option shown in <Figure 2>, you can set set the following: whether to check CRC(1 = check, 0 = No check), bit write value that corresponds to ON(Default = 65280), protocol type(1 = IP protocol, 0 = Serial protocol), bit write value that corresponds to OFF(Default = 0), whether to use WORD size(1 = Not using WORD size, 0 = using WORD size, Default = 0), whether to use multi write(0 = Not using multi write, 1 = using multi write, Default = 0), state value storage position for comparison of data(input WORD memory address, Defualt = 1000).
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| <Figure 3> Example of MODBUS2 comunication driver’s read schedule Add/Edit dialog box |
When you click Add button or Edit button in dialogue box of <Figure 2>, dialogue box of <Figure 3> is shown.
You can set Transfix controller by using 'write settings'.
Digital Write
Digital write and analog write have the same setting parameters except output value.
Analog Write
Analog write setting parameters are as follows:
1) PORT Port no. (0 ~ 255)
2) STATION modbus station number.
serial = 1 ~ 247,
ethernet( TCP/IP, ... ) = 100, 255, ...
3) ADDRESS writing modbus address. ( Modbus address - 1 )
'TRANS' write command = reading Record index.
4) Extra1 write command
16 – Writing the data of WORD unit.
16D – Writing the data of DWORD unit ( WORD order : LO, HI ).
16d – Writing the data of DWORD unit ( WORD order : HI, LO ).
16lD, 16LD – Writing the data of 8 BYTE unit ( WORD order : LO, HI ).
16ld, 16Ld – Writing the data of 8 BYTE unit ( WORD order : LO, HI ).
16M – Writing the special data[HI WORD x 10000 + LO WORD] of DWORD unit ( WORD order : LO, HI ).
16m – Writing the special data[HI WORD x 10000 + LO WORD] of DWORD unit ( WORD order : HI, LO ).
16lM, 16LM – Writing the special data[HI WORD x 10000 + LO WORD] of 8 BYTE unit ( WORD order : LO, HI ).
16lm, 16Lm – Writing the special data[HI WORD x 10000 + LO WORD] of 8 BYTE unit ( WORD order : HI, LO ).
16s – Writing the special data[16 BYTE BCD ASCII].
16F – Writing the data of FLOAT unit ( WORD order : LO, HI ).
16F2 – Writing the data of FLOAT unit ( WORD order : LO, HI ).
16f – Writing the data of FLOAT unit ( WORD order : HI, LO ).
16f2 – Writing the data of FLOAT unit ( WORD order : HI, LO ).
16B – Writing the data of BYTE unit.
16H_TIME – transmit the current time of computer to HICM equipment. (You have to write 6 word one by one - year, month, day, hour, minute, second / only word write)
TRANS - Historical Records reading of Transfix controller.
5) Extra2 readed data saving start address when TRANS write command. other command = don't care.
Write example 1)
PORT:0, station:1, ADDRESS:0100, Extra1: 16, Extra2 : 0
The setting parameter shown above is word unit write setting example for 100( 101 Modbus address ) address.
Write example 2)
PORT:0, station:1, ADDRESS:5000, Extra1: 16d, Extra2 : 0
The setting parameter shown above is double word unit write setting example for 5000( 5001 Modbus address ) address.
Write example 3)
PORT:0, station:1, ADDRESS:0002, Extra1: TRANS, Extra2 : 200
The setting parameter shown above is number 2 Historical Records reading example of Transfix controller.
After reading, the readed data save at 200 ~ 264 WORD, DWORD, FLOAT memory.