ABB AnalyzeIT ZMT Series Aanvullende gebruiksaanwijzing - Pagina 9

Blader online of download pdf Aanvullende gebruiksaanwijzing voor {categorie_naam} ABB AnalyzeIT ZMT Series. ABB AnalyzeIT ZMT Series 20 pagina's. Zirconia oxygen analyzer systems

Pagina afdrukken

8.3 Reply Format – Figs 8.4 to 8.6

The ZMT Analyzer replies to the command using the reply

format shown in Figs. 8.4 to 8.6.

8.3.1 Term Clarification for Reply Format

Instrument Identification – two characters identifying the

ZMT Analyzer, 1 to 99.

Data – usually up to six characters (including decimal point)

showing the new parameter value.

Error Code – two-character mnemonic – see Section 8.6.

Reply – one ASCII control character (see Appendix A1):

'ACK'

–

command understood

'NAK'

–

command not understood

'ETB'

–

end of multiple read reply block.

Instrument

Identification

(1 to 99)

Instrument

Identification

(1 to 99)

First reply

Note. This reply format may be repeated several times – see Example c) overleaf

Replies

2 to n

The last reply line is always:

Last reply

(n+1)

Parameter

Mnemonic

(Section 8.6)

Sign

Fig. 8.4 Reply Format (Command Understood)

Parameter

Mnemonic

(Section 8.6)

Sign

Fig. 8.5 Multiple Read Reply Format

Instrument

Identification

(1 to 99)

Error Code

Fig. 8.6 Reply Format (Command Not Understood)

8 COMMUNICATION...

Block Check Character (BCC) – one character, the

arithmetic sum of the complete message (excluding parity

bits), transmitted by the analyzer for error detection

– see Appendix A3.

Data (up to 6 characters)

ACK

Data (up to 6 characters)

ETB

BCC

(optional)

NAK

BCC

(optional)

BCC

(optional)

ACK