Novus N1040i Indicator Bedienungsanleitung PDF herunterladen (Seite 3)

code in case of an invalid request. Response frames containing error codes

have the most significant bit of the Modbus command set (the value 80H is

added to the response).

If a WRITE command sends an out-of-range value to a parameter, the

indicator will clamp the value to the parameter range limits, replying with a

value that reflects these limits (maximum or minimum value allowed for the

parameter).

The indicator ignores broadcast READ commands; the indicator processes

only broadcast WRITE commands.

Error Code Error Description

01 Invalid Command

02 Invalid Register Number or out of range

03 Invalid Register Quantity or out of range

Table 3 – Exception response error codes

1 2 3

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