CONTREX CX-1200 - Manual (Page 258)

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FUNCTION (01) CONTROL ACKNOWLEDGMENT
Table 7-18 Host Transmission
Character #
DESC
ASCII
1 2 3 4
STX Address Inquiry ETX
^B 1-99 ? ^C
Address Field
This field may consist of one or two ASCII characters, depending on the address of the control. For
example, if the address is less than 10, then only one ASCII character is required in this field. If the
address is greater than 9, then two ASCII characters are required in this field to represent the ad-
dress. Leading spaces in this field will be ignored.
Table 7-19 CX-1200 Response
\
Character #
DESC
ASCII
1 2 3 4 5
STX Msg Error Separator ACK ETX
^B 0-FF
,
^F ^C
Msg Error Field
This field may consist of one or two ASCII HEX characters that indicate any serial communications
errors that may have occurred when the message transmission was received.
ACK
This field acknowledges that the control exists (represented by ASCII character #6). If there is not a
control at the address indicated, there will not be a response.