Baumer NE216 Instrukcja Użytkownika Pobierz pdf (Strona 5)

NE216

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Error messages during data transfer

If receiving an invalid data protocol from the PC (for example line not existing or letters where there should

be numbers) the counter – provided it is still accessible - will return a corresponding error message. To be

able to do so, at least control character <STX> and identifier must be correct. If not, NE216 is no longer ac-

cessible and therefore not in a position to reply any error message to the PC.

In case no reply neither error message is replied on the PC request, it is a fatal error which means control

character <STX> and identifier are missing. Furthermore, PC and NE216 interface parameters are not con-

gruent. However these being correct, the failure is due to hardware or a defect in the data transmission line.

Standard structure in error messages:

<STX> Identifier line status <CAN> error number <ETX> <CR>

Example: Identifier =35, Line =09 (invalid line), error number =2

The error message replied will come without „line“ and „status“ information.

Detailed error description:

Error 1: Format error (incorrect <ETX> position. This signal is given in case

the data format was not kept during programming (for example during

parameterization of a limit only 4 digits instead of 5 have been

transferred).)

Error 2: Line (position) not existing or separating line

Error 3: Parameter error (invalid protocol data). Example: Scaling factor not

only comprising numbers but also of other characters not permitted, or

parameter beyond the permitted range.

Chart of the control characters applied

Control character

Hex

Decimal

<STX>

<ETX>

<ACK>

<LF>

<CR>

<DC1>

<CAN>

<DEL>

127

1 2 3 4 5 6 7

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