Issue
Unsure what options are available in the Lua smtp.send() function.
Product Line
EcoStruxure Building Expert
Environment
SmartStruxure Lite Multi-Purpose Manager (MPM)
Cause
The Lua smtp.send() function is not fully documented.
Resolution
The syntax of the smtp.send() function is:
smtp.send
{ from = string, rcpt = string or string-table, source = LTN12 source, [server = string,] [user = string,] [password = string,] [port = number,] [domain = string] }
From above you can see that the "from", "rcpt" and "source" fields are required. Whilst "server", "user", "password", "port" and "domain" fields are optional.
Example Lua code is:
--============================================================================== -- SSL email notification script example --============================================================================== -- Define the input you want to monitor below var("temperature", "ME.AI1") -- Room Temperature limit = 78 -- define the threshold now = scl.sysclock() if (temperature > limit) then -- When temperature is above threshold if (sent == nil) -- Check if e-mail was already sent and ((last == nil) or (now - last > 15 * 60)) then -- Maximum every 15 minutes sent = true -- Only send e-mail once last = now -- Keep track of last time result, reason = smtp.send { user = "alerts@server.com", -- Enter your existing SMTP username password = "test1234", -- Enter your existing SMTP password from = "alerts@company.com", -- Enter your existing Source address rcpt = { "user1@company.com", -- First recipient "user2@company.com", -- Second recipient "user3@company.com" -- Third recipient }, source = smtp.message( { headers = { from = "alerts@company.com", -- Displayed source address to = "technicians@company.com", -- Displayed recipients subject = "Temperature Alert" -- E-mail title }, body = "Current temperature is: " .. temperature .. " (above " .. limit .. ")" .. " [" .. os.date() .. "]"}), server = "server.com" – enter your SMTP server } if result ~= 1 then print(os.date(), "E-mail was NOT sent:", reason) else print(os.date(), "E-mail was successfully sent.") end end else sent = nil -- Re-enable alerting on condition end
--[[ Disclaimer: We hope that this script example and associated information (the "information") is valuable to you. Your use of this information, however, is at your sole risk. All information is provided "as -is", without any warranty, whether express or implied, of its accuracy, completeness, fitness for a particular purpose, title or non-infringement, and none of the third-party products or information mentioned in the work are authored, recommended, supported or guaranteed by Schneider Electric.. Further, Schneider Electric. shall not be liable for any damages you may sustain by using/installing/modifying this information, whether direct, indirect, special, incidental or consequential, even if it has been advised of the possibility of such damages. --]]
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