RS232 serial read

[leonidas]

Hello,

I have a code which logs every char received be serial port:

Code:

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if not port then  require('serial')  port = serial.open('/dev/RS232', { baudrate = 9600, parity = 'none', duplex = 'full' })  port:flush() end -- port ready if port then   char = port:read(1, 1)  if char then    alert(char)  end end

What I need is to find specific string in received data. For example "OUT1ON" or "OUT1OFF" and based on it control KNX object. Maybe someone can help me with that?

[admin]

Is this input separated somehow - by a new line character or similar?

[leonidas]

In device manual it says  last byte is <cr>. "Module must end with carriage return (ASCII #13)"

[admin]

Code:

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if not port then   require('serial')   port = serial.open('/dev/RS232', { baudrate = 9600 })   port:flush()   line = '' end char = port:read(1, 1) if char then   if char == '\r' then     line = line:trim()     alert(line)     line = ''   else     line = line .. char   end end

[leonidas]

Thank you, it works

[Gadjoken]

Code:

1234567891011121314151617

if not port then  require('serial')  port = serial.open('/dev/RS232', { baudrate = 9600 })  port:flush()  line = '' end char = port:read(1, 1) if char then  if char == '\r' then    line = line:trim()    alert(line)    line = ''  else    line = line .. char  end end

Hi Admin,
I have a question about RS232 i have try this profil with RS485 but i want (because i have many devices on RS485 and only this on Rs232) to put this device on RS232 with script but i don't now how make that : 

{
 "manufacturer": "TEST",
 "description": "TEST",
"mapping": [
{ "name": "1", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 0, "value_bitmask": 0x00FF, "writable": 0},
{ "name": "2", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 0, "value_bitmask": 0xFF00, "writable": 0},
{ "name": "3", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 1, "value_bitmask": 0x00FF, "writable": 0},
{ "name": "4", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 1, "value_bitmask": 0xFF00, "writable": 0},
{ "name": "5", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 2, "value_bitmask": 0x00FF, "writable": 0},
{ "name": "6", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 2, "value_bitmask": 0xFF00, "writable": 0},
{ "name": "7", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 3, "value_bitmask": 0x00FF, "writable": 0},
{ "name": "8", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 3, "value_bitmask": 0xFF00, "writable": 0},
{ "name": "9", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 4, "value_bitmask": 0x00FF, "writable": 0},
{ "name": "10", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 4, "value_bitmask": 0xFF00, "writable": 0},
{ "name": "11", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 5, "value_bitmask": 0x00FF, "writable": 0},
{ "name": "12", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 5, "value_bitmask": 0xFF00, "writable": 0},
{ "name": "13", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 6, "value_bitmask": 0x00FF, "writable": 0},
{ "name": "14", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 6, "value_bitmask": 0xFF00, "writable": 0},
{ "name": "15", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 7, "value_bitmask": 0x00FF, "writable": 0},
{ "name": "16", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 7, "value_bitmask": 0xFF00, "writable": 0},
{ "name": "17", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 8, "value_bitmask": 0x00FF, "writable": 0},
{ "name": "18", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 8, "value_bitmask": 0xFF00, "writable": 0},
{ "name": "19", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 9, "value_bitmask": 0x00FF, "writable": 0},
{ "name": "20", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 9, "value_bitmask": 0xFF00, "writable": 0},
{ "name": "21", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 10, "value_bitmask": 0x00FF, "writable": 0},
{ "name": "22" "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 10, "value_bitmask": 0xFF00, "writable": 0},
{ "name": "23", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 11, "value_bitmask": 0x00FF, "writable": 0},
{ "name": "24", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 11, "value_bitmask": 0xFF00, "writable": 0},
{ "name": "25", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 12, "value_bitmask": 0x00FF, "writable": 0},
{ "name": "26", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 12, "value_bitmask": 0xFF00, "writable": 0},
{ "name": "27", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 13, "value_bitmask": 0x00FF, "writable": 0},
{ "name": "28", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 660, "value_bitmask": 0x00FF, "writable": 0},
{ "name": "29", "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 660, "value_bitmask": 0xFF00, "writable": 0},
{ "name": "30" "bus_datatype": "07", "type": "register", "datatype":"uint16", "address": 668, "value_bitmask": 0x00FF, "writable": 0}
 ]
}

Thanks a lot.

[admin]

What kind of device is it? Is it ModBus RTU or ASCII over RS-232?

[Gadjoken]

What kind of device is it? Is it ModBus RTU or ASCII over RS-232?

Hi admin,

I am attaching the product documentation. For me it is in RS232 ... 
Thank you for your understanding

[admin]

Well, this should work with ModBus mapper and correct profile. You do not need any scripts here. Start with configuring correct RTU serial port and settings and then use RTU read test.

[Gadjoken]

Well, this should work with ModBus mapper and correct profile. You do not need any scripts here. Start with configuring correct RTU serial port and settings and then use RTU read test.

Hi,
In fact that's what I thought too but after setting all parameters no discussion so the manufacturer told me that his machine was working in RS232 so that's why I wanted to do the test with a script.
Thank you.

[admin]

It does not matter for ModBus mapper whether you are using RS-232 or RS-485. The only thing that matters is to set correct duplex if using selectable RS-232/RS-485 port on LM5.

[Gadjoken]

It does not matter for ModBus mapper whether you are using RS-232 or RS-485. The only thing that matters is to set correct duplex if using selectable RS-232/RS-485 port on LM5.

Hello, 
I am currently on a SpaceLynk I have several devices RS485 (heat pump, central air treatment ...) that work very well without the equipment we are talking about. 
That's why I would have liked to put it following the request of the supplier on the RS232 port so it is necessary to pass on scripts? 
Thank you.