Phrych: Created page with "{{DISPLAYTITLE:function modbusWriteSingleCoil()}} Write value to single coil using modbus protocol. The call is asynchronous: the code execution proceeds immediately and when..."

2019-06-20T13:07:30Z

Created page with "{{DISPLAYTITLE:function modbusWriteSingleCoil()}} Write value to single coil using modbus protocol. The call is asynchronous: the code execution proceeds immediately and when..."

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{{DISPLAYTITLE:function modbusWriteSingleCoil()}}
Write value to single coil using modbus protocol. The call is asynchronous: the code execution proceeds immediately and when the response arrives, callback function is called.

nil modbusWriteSingleCoil(table <code>config</code>)

=== Parameters ===
table config{<code>deviceAddress</code>, <code>callback</code>, <code>address</code>, <code>value</code>, <code style="color: #777">port</code>, <code style="color: #777">timeout</code>}
* string <code>deviceAddress</code> IP address of device
* function{response} <code>callback</code> this function is called when response arrives
* string <code>address</code> number of the coil
* boolean <code>value</code> the value to be written
* optional number <code>port</code> numer of port (default 502)
* optional number <code>timeout</code> maximum seconds to wait for response (default 30)

=== Callback Parameters ===
table response{<code>result</code>, <code>errInfo</code>, <code>address</code>}
* number <code>result</code> error code of the response (0 is success)
* string <code>errInfo</code> error description (if result>0)
* number <code>address</code> number of the input register

=== Return value ===
nil

=== Usage ===
-- Turn on all outputs on NETIO with IP 10.0.0.105 and port 505
local function modbusWriteCallback(data)
log(string.format("addr %d, result %d", data.address, data.result))
end

for i = 101,104 do
modbusWriteSingleCoil{deviceAddress='10.0.0.105', port=505, timeout=6, address=true, value=4, callback=modbusWriteCallback}
end

=== Requirements ===
Netio FirmWare 3.3.0+

__NOTOC__

Function modbusWriteSingleCoil() - Revision history

Phrych: Created page with "{{DISPLAYTITLE:function modbusWriteSingleCoil()}} Write value to single coil using modbus protocol. The call is asynchronous: the code execution proceeds immediately and when..."