Fidelix multiDISPLAY FX-HP, Programming Manual

Page: 34 / 38

Fidelix FX-RP multiDISPLAY Programming manual page 34 of 38
Graphical look-up table editor
The FX-RP multiDISPLAY can handle graphical look-up table editing with up to 10 points. The actual look-up
table must be implemented inside the Modbus master. Use the #LUT definition as a part of point name in the
graphics editor to use the look-up table function. The LUT operation is started by the FX-RP multiDISPLAY if a
point with #LUT definition is clicked. The FX-RP multiDISPLAY writes the point number of the requested LUT to
register 2310. The Modbus master needs to poll register 2310 to notice the LUT request. After the request, the
Modbus master should write the correct data to registers 2311-2339 and set register 2310 to “0xAAAA” indicating
that the data is uploaded to the FX-RP multiDISPLAY. After the user has finished the modification of the LUT
points, the FX-RP multiDISPLAY saves the (new) values to registers 2320-2339 and register 2310 is set to value
“ point number” indicating to the Modbus master that the process has finished. The Modbus master
can then read out the registers again to update the actual lookup table which resides inside the Modbus master
Reg2310 Status register
Reg2311 Minimum value of x-axis
Reg2312 Maximum value of x-axis
Reg2313 Minimum value of y-axis
Reg2314 Maximum value of y-axis
Reg2315 Divider
Reg2316 Point count
Reg2317 Hairline (0=do not draw, 1=draw)
Reg2318 adjust buttons (0=no buttons, 1=upper left corner, 2 = upper right corner, 3=lower left
corner, 4=lower right corner)
Reg2319 reserved
Reg2320 X value of point 1
…
Reg2329 X value of point 10
Reg2330 Y value of point 1
…
Reg2339 Y value of Point 10
String Variables
The string section (registers 2400-2911) is divided into 8 blocks with 64 registers in each block (blocks 0 to 7;
block 0: registers 2400-2463, block 1: registers 2464-2527, block 2: registers 2528-2591, block 3: registers 2592-
2655, block 4: registers 2556-2719, block 5: registers 2720-2783, block 6: registers 2784-2847, block 7: registers
2848-2911). Each block may contain one or more strings. The first register of each block contains the count of
strings in that block. The following X registers contain the start register and length of the corresponding string
where X = the number of strings in that block. As an example the register section containing strings "Hello,",
"Fidelix" and "rules!" should be configured as follows:
Register HEX value
Decimal value
2400 0x0003
3
number of strings = 3
2401 0x0406
1030
Start register of first string = 4, length = 6 bytes
2402 0x0707
1799
Start register of second string = 7, length = 7 bytes
2403 0x0B06
2822
Start register of third string = 11, length = 6 bytes
2404 0x4865 18533 ‘H’ ‘e’
2405 0x6C6C 27756 ‘l’ ‘l’
2406 0x6F2C 28460 ‘o’ ‘,’
2407 0x4669 18025 ‘F’ ‘i’
2408 0x6465 25701 ‘d’ ‘e’
2409 0x6C69 27753 ‘l’ ‘i’
2410 0x7800 30720 ‘x’
2411 0x7275 29301 ‘r’ ‘u’
2412 0x6C65 27749 ‘l’ ‘e’
2413 0x7321 29473 ‘s’ ‘!’