1944 HEIDENHAIN Technical Manual iTNC 530 HSCI
12.2iTNC Error Messages during Data Transfer
The following error messages can occur during data transfer through an
interface:
Error codes:
Codes K and L are shown only during transmission with the standard data
transmission protocol.
General error messages
Interface already assigned The interface is already transmitting,
or the transmission was not
concluded.
Program incomplete A transmission was broken off or the
file was not correctly concluded (no
END character or END block).
Ext. in-/output not ready The interface is not connected, or the
peripheral unit is switched off or
defective.
Data transfer erroneous x x = error code (see table).
Error code Meaning
E Bei Datenübertragung mit BCC wurde 15mal hintereinander
<NAK> empfangen
A to H
except E
Error code of the receiver module with one of the following
causes:
The transfer-rate setting of the iTNC and peripheral device do
not match.
The parity bit is erroneous.
Erroneous data frame (e.g.: no stop bit).
The receiver module of the interface is defective.
K During transmission of an error to the iTNC, the <1> character
was not transmitted after the <ESC> character.
L After the error sequence <ESC><1> an incorrect error number
was received (error numbers 0 to 7 are permitted).
N An expected acknowledgment <ACK> or <NAK> was not
transmitted by a certain time.
M During data transfer with BCC, the <NAK> signal was
transmitted 15 times in succession.
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