ACR-CV-101L-R-D
ACR-CV-101L-R-D2

• The universal converter is used for application where you need to send data from Modbus over the LoRa network or NB-IoT
• We offer battery operated units, as well as external power operated units.
• Each universal converter has implemented LUA scripts and can be configured via configuration software

1x ACR-CV with battery*
* Only for battery operated units

• ACR-CONFIG - configuration cable necessary to configure the converter.
• ACR-CONFIG-5KV - optically isolated configuration cable necessary to configure the converter.
• 2J-2JW031-868-C675 - LoRa antenna 3dBi
• 2J-2JW1024 - NB-IoT antenna, max gain 4.6dBi

1. Loosen the screws and open the lid
2. Connect the cables from Modbus to the terminal board
3. Remove the paper from the battery bay
4. The device initializes, flashes green 3 times
5. Put the lid back in the box and pull it off screws

• 3x blue- start up
• 1x short blue - periody wake-up
• 1x long blue- enter configuration mode after long press of user button

-----------------------
--- CONFIGURATION -----
-----------------------
----- NB-IoT ----------
APN = "nb.m2mc"
PLMNID = "23003"
protocol = "UDP"	-- UDP or TCP
ip = "192.168.0.20"
port = 4242
receiveTimeout = 500 -- the maximum execution time in milliseconds
----- Modbus -----------
baudrate = 9600		-- baudrate: up to 921600 baud
parity = 0	        -- communication parity: 0 for none, 1 for odd and 2 for even parity
stopBits = 1		-- number of stop bits: 1 or 2
dataBits = 8		-- number of data bits: 7 or 8
rxTimeout = 500     -- slave device receive timeout in ms
------ Timing ---------
-- device wakeup interval
periodHours = 2
periodMinutes = 30
-----------------------
-----------------------
-- CONFIGURATION END --
-----------------------
 
function onWake ()
 
    -- set link parameters - e.g. 9600 baud, 8N1
    api.rs485Setup(baudrate,parity,stopBits,dataBits)
    api.rs485State(1)
 
    -- EXAMPLE Modbus request:
    -- check our applicaton notes or https://simplymodbus.ca/FC03.htm
    -- req = ""
    --              SLAVE ADDRESS     FUNCTION CODE     MSB REG ADDR      LSB REG ADDR
    -- req = req .. string.char(0) .. string.char(3) .. string.char(0) .. string.char(100)
    --              MSB REG COUNT     LSB REG COUNT
    -- req = req .. string.char(0) .. string.char(1)
    -- crc =  api.modbusCrc(req)
    -- req = req .. crc -- add CRC, request is complete and ready for sending
 
    if req == nil then
        print("Please provide configuration!")
        ans = "NO CONFIGURATION PROVIDED!"
    else
        print("To RS485: ")
        api.dumpArray(req)
        api.rs485Send(req)
        answer,length=api.rs485Receive(rxTimeout) 
        print("From RS485: ")
        api.dumpArray(answer)
        api.rs485State(0)
 
        print("From Modbus Slave device: ")
        api.dumpArray(ans)
    end
 
    if #ans < 1 then
        buf = "NO DATA RECEIVED"
    else
        buf = ans
    end
 
    print("To NBIOT: ")
 
    api.dumpArray(buf)
 
    print("Sending to NB-IoT")
    api.nbSend(ip, port, buf, receiveTimeout, protocol)
 
    print("Done sending")
    print("Sleep now, wake in " .. tostring(periodHours) .. "hrs:" .. tostring(periodMinutes) .. "mins.....")
 
    api.wakeUpIn(0,periodHours,periodMinutes,0)
end
 
function onStartup()
    print("Starting up NB-IoT default Modbus script with APN settings")
 
    result = api.nbAT("AT*MCGDEFCONT=\"IP\",\"" .. APN .."\"", 5000, 1)
    print("APN result: " .. result)
 
    result = api.nbAT("AT+COPS=1,2,\"" .. PLMNID .."\"", 5000, 1)
    print("PLMNID result: " .. result)
 
 
end

The IoT Converter can be configured via a PC application or remotely via a LoRaWAN or NB-IoT network.
Inside the IoT converter is a button that allows you to wake up the IoT converter immediately (asynchronous to the internal clock).

1. Unscrew the 4 screws holding the lid on the device and remove the lid.
2. Unplug the battery or power adapter.
3. Connect the ACR-CONFIG cable into the PC and also into the converter.
4. Launch configuration GUI.
5. Select the port on which the device is connected (for example COM6).
6. Click on “Connect”.
7. Power on the device - either by plugging in the battery or power adapter.
8. Start configuration.

1. Unscrew the 4 screws holding the lid on the device and remove the lid.
2. Plug in the battery or power adapter.
3. Connect the ACR-CONFIG cable into the PC.
4. Launch configuration GUI.
5. Select the port on which the device is connected (for example COM6).
6. Click on “Connect”.

NOTE: To get out of the device's communication display, push the button within the converter and hold for about 6 seconds, until the device switches to configuration mode.

• Windows 7: https://acrios.com/downloads/SW/IoT_Converter_GUI_2019-12_win7_fd191d8.zip
• MacOS 10.15: https://acrios.com/downloads/SW/IoT_Converter_GUI_2019-12_macos_ec77ff4.zip

• Windows 10: https://files.acrios.com/index.php/s/btmdxi8wgGLgMyy
  

• Good for externally power supplied units. It can save you from overvoltaging your PC in case of faulty cable connection.
  
• Can be supplied by ACRIOS Systems
  
• 3.5mm jack connector
  

In addition to configuration via a PC application, a LUA scripting interface is implemented in the IoT converter.
The LUA scripting interface allows you to implement your own logic (data preprocessing, etc.) within the converter.
Payload can be also modified by using LUA script.
Details regarding LUA scripts with examples can be found here: https://wiki.acrios.com/doku.php?id=public:general:lua_api

api.rs485Send( msg)

This function sends msg to RS485 bus. Turn on RS485 using rs485State first.

Arguments

• msg (string) - Data to be sent to RS485 bus

Example

api.rs485Send('test') 
--sends 'test' string to RS485

api.rs485Setup( baudrate, parity, stopBits, dataBits)

This function changes the configuration of RS485 interface

Arguments

• baudrate (integer, optional) - Baudrate to use for communication (up to 921600 baud)
• parity (integer, optional) - Parity, 0 for none, 1 for odd and 2 for even parity
• stopBits (integer, optional) - Number of stop bits, 1 or 2 allowed
• dataBits (integer, optional) - Number of data bits, 7 or 8 allowed

Example

--setup RS485 interface to 9600 Baud, 8E1 
api.rs485Setup(9600, 2, 1, 8)

api.rs485State( state)

This function turns on the RS485 circuitry, must be used before rs485Send or rs485Receive.

Arguments

• state (integer) - New state of RS485 circuitry: 0 for off, 1 for on (fast power-up)

Example

api.rs485State(0) --turn off RS485

answer,len = api.rs485Receive( timeout)

This function waits timeout milliseconds for data reception from RS485 bus. Turn on RS485 using rs485State first.

Arguments

• timeout (integer) - The maximum time in milliseconds to wait for RS485 device answer

Returns

• answer (string) - Data received from RS485 bus in given time
• len (integer) - Number of bytes received

Example

--waits 1s for answer from RS485 bus 
ans,len = api.rs485Receive(1000)

crc = api.modbusCrc( msg)

This function calculates Modbus request checksum.

Arguments

• msg (string) - Modbus request

Returns

• crc (string) - Modbus crc for request

Example

--calculate checksum for Modbus request 110100010002 
req = pack.pack('<b6', 0x11,0x01,0x00,0x01,0x00,0x02) 
crc = api.modbusCrc(req) --crc = "EE9B"

msg, answer = api.nvtProcess(buf)

This function processes NVT message and either sets baudrate, datasize, parity or stop size for MBUS or MODBUS.

Arguments

• buf (string) - Message to be processed

Returns

• msg (string) - Message without NVT sequence
• answer (string) - NVT answer

Example

ret,port,buf = api.loraSend(0,1000,data) 
if buf ~= nil then 
	buf, nvtans = api.nvtProcess(buf) 
	api.rs485Send(buf)
end

answer = api.nvtEncode(msg)

This function encodes message to NVT format.

Arguments

• msg (string) - Message to be encoded to NVT

Returns

• answer (string) - NVT message

Example

ans,len = api.rs485Receive(50) 
ans = api.nvtEncode(ans) 
api.loraSend(0,1,ans)

ACR-CV-101L-R-EAC
ACR-CV-101L-R-EDC

ACR-CV-101N-R-EAC
ACR-CV-101N-R-EDC

ACR-CV-101L-R-D
ACR-CV-101L-R-D2
ACR-CV-101L-R12-D
ACR-CV-101L-R12-D2

ACR-CV-101N-R-D
ACR-CV-101N-R-D2
ACR-CV-101N-R12-D
ACR-CV-101N-R12-D2