CONTREX M-Traverse - Manual (Page 124)

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Table 3-43 Data Inquiry - M–Traverse Response
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Dev# Dev# Error Par# Par# Data Data Data Data Data Data Data Data Data
STX 10s 1s Code 10s 1s 10mil 1mil 100th 10th 1th 100s 10s 1s Forma t ETX
STX 0-9 0-9 @— 0-9 0-9 0-9 0-9 0-9 0-9 0 -9 0-9 0-9 0-9 0-; ETX
Character
#
DESC
ASCII
The following is a description of the Data Inquiry-M–Traverse Response Characters.
Character 1 - STX:
This is the first character in the character string.
Characters 2, 3 Device Number:
This is the two character access address for the M–Traverse.
Character 4 -Error Code:
If there are errors in the transmission that the M–Traverse receives from the host
computer, the Error Code will display them. Use Table 3-42 to convert the ASCII
code to binary. Then the binary code can be decoded as follows:
Bit 7 Always “0”.
Bit 6 Always “1”.
Bit 5 Always “0”.
Bit 4 1 = Control Mask Error / Lockout during Run state.
Bit 3 1 = Minimum / Maximum Error (out of range).
Bit 2 1 = Data Error (invalid data).
Bit 1 1 = Parameter Error (invalid parameter or message type).
Bit 0 1 = Transmit Error (parity, framing, overrun, no STX or no ETX).
Note: The M–Traverse will only accept data if there are no errors. The ASCII error
code “@” (Binary code “1000000”) indicates that the Host Transmission
contains no errors. Also see MV-74 for the ASCII Error Code for the last
Response Message.