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+--- Thread: Vigilohm JSON Modbus file (/showthread.php?tid=2556)
Vigilohm JSON Modbus file - SigmaTec - 31.03.2020
Hi all,
Is there anyone who could share a JSON file for LM, allowing to read/write the Modbus registers of a Vigiohm FL12H from Schneider Electric?
Thank you in advance for your help and above all, take care of yourself.
RE: Vigilohm JSON Modbus file - Daniel - 31.03.2020
Are you sure the name is correct? Google didn't found anything.
RE: Vigilohm JSON Modbus file - SigmaTec - 31.03.2020
Hi Daniel,
it's Vigilohm IFL12H, an insulation fault locator, made by Schneider Electric
RE: Vigilohm JSON Modbus file - SigmaTec - 01.04.2020
Hi Daniel,
I can give to you the IFL12H Modbus registers table if necessary...
Have a good day.
RE: Vigilohm JSON Modbus file - Daniel - 01.04.2020
We can help you to start but you will have to finish it.
RE: Vigilohm JSON Modbus file - SigmaTec - 01.04.2020
Perfect Daniel, it will be a good help to understand !
Here are Modbus registers definitions :
http://www.sigma-tec.fr/LM-Daniel/tables%20modbus%20IFL12H.pdf
If you could give me at least one JSON structure for each registry format, that would be fine. I think I'll get there next.
Thank you very much in advance.
Take care of yourself.
RE: Vigilohm JSON Modbus file - Daniel - 01.04.2020
Can you get it in English?
RE: Vigilohm JSON Modbus file - SigmaTec - 01.04.2020
Yes Daniel, excuse me please...
Here are Modbus registers english definitions :
http://www.sigma-tec.fr/LM-Daniel/tables%20modbus%20IFL12H%20-%20en.pdf
RE: Vigilohm JSON Modbus file - Daniel - 01.04.2020
Can you just try to use RTU read test and read register 100 like this
If this won't work try register 101.
RE: Vigilohm JSON Modbus file - SigmaTec - 01.04.2020
Ok Daniel.
read result is 17032 for adress 100
read result is 32768 for adress 101
RE: Vigilohm JSON Modbus file - Daniel - 01.04.2020
Ok perfect we need to shift registers by -1
Try starting with this
For bits you have to add each bit as separate line and add bitmask
Code:
bit 0 = 0x1
bit 1 = 0x2
bit 2 = 0x4
bit 3 = 0x8
bit 4 = 0x10
bit 5 = 0x20
bit 6 = 0x40
bit 7 = 0x80
bit 8 = 0x100
bit 9 = 0x200
bit A = 0x400
bit B = 0x800
bit C = 0x1000
bit D = 0x2000
bit E = 0x4000
bit F = 0x8000RE: Vigilohm JSON Modbus file - SigmaTec - 01.04.2020
It works perfectly ! I think I understood the principle.
I completed the json (see linked file), a lot of registers work fine, but...
1. Can you please validate the sections in yellow?
3. I don't get correct results for the 3 "date&time" sections in red (end of json): why?
3. How to process the UTF8 (ex. 160 ... 179) and the UF8 (ex. 180 ... 199) from the tables ---. Pdf file?
All the best from France.
Thank you again for your precious help.
http://www.sigma-tec.fr/LM-Daniel/ST-IFL12H_updated.pdf
RE: Vigilohm JSON Modbus file - admin - 02.04.2020
2. Profile type field should be register instead of inputregister
3. String values are not supported by modbus mapper. It can be read via a script, but do you really need these values?
RE: Vigilohm JSON Modbus file - SigmaTec - 02.04.2020
Hi Daniel,
2. I tried yesterday with both formats: same result.
3. Yes, I need theses values to work with the exact product internal date&time for my process
Have you got an Lua script example for this ?
Thank's in advance.
RE: Vigilohm JSON Modbus file - Daniel - 02.04.2020
Hi
2. Looks OK, I would contact SE and ask them for function they use to read this value.
3. You already have product identification in register 100 only in numeric format. Product identifier 17032 = IFL12H
If you really need script for this then try this.
Code:
mbproxy = require('mbproxy')
mb = mbproxy.new()
mb:setslave(1)
function readstring(mb, address, length)
local data = { mb:readregisters(address, length) }
local bytes = {}
for _, reg in ipairs(data) do
if type(reg) == 'number' then
-- high 8 bits
local b1 = bit.band(bit.rshift(reg, 8), 0xFF)
if b1 > 0 then
bytes[ #bytes + 1 ] = b1
end
-- low 8 bits
local b2 = bit.band(reg, 0xFF)
if b2 > 0 then
bytes[ #bytes + 1 ] = b2
end
end
end
-- convert table of byte values to string
return string.char(unpack(bytes))
end
result = readstring(mb, 160, 9)
log(result)RE: Vigilohm JSON Modbus file - SigmaTec - 02.04.2020
It works very fine ! Thank you very much Daniel.
Best regards from France.