Field Device, e.g [...] . The variable given [...] the IO subsystem (e.g

to be read, e.g [...] maximum. The variable [...] contains the error code

-Error // e.g. DF [...] variable 'product [...] Command Code LEN INT

function inside G-Code [...] function inside G-Code [...] queue of the g-code

(e.g. Start [...] variable names). Because [...] small amount of code