Hach sc1000 - Manual (Page 78)

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Standard Operations
A set of functions is available to set the error and warning status of output modules. Each
of these functions requires a minimum of 2 (or 3) parameters and allows a maximum of
32 parameters. In calculations all functions take the value of first argument A as the
function result, so the use of these functions does not affect the calculated value.
Table 26 Check functions to set errors and warnings
Range Error RNG(A, Min, Max)
When AMax:
Error “RANGE FUNCTION” is set to the executing card
Range Warning rng(A, Min, Max)
When AMax:
Warning “RANGE FUNCTION” is set to the executing card
Conditional Error CHK(A, X)
When X is true:
Error “LOGIC FUNCTION” is set to the executing card
Conditional Warning chk(A, X)
When X is true:
Warning “LOGIC FUNCTION” is set to the executing card