CONTREX CX-1200 - Manual (Page 285)

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FUNCTION (09) DATA WRITE CUSTOM ENGINEERING UNITS
Table 55 Host Transmission
Byte #
DESC
Decimal
1 2 3 4 5-19 20 21 22
STX Length Address Function EU Text ETX CRC
Hex
2 8-22 0-99 9 3 0-65535
02 08-16 00-63 09 03 0000-FFFF
EU Text Field - Engineering Units Text String (1 to 15 Printable ASCII characters)
Message Length = 8 to 22 bytes
Table 56 CX-1200 Response
Byte #
DESC
Decimal
1 2 3 4 5 6 7 8
STX Length Address Msg Error Error Code ETX CRC
Hex
2 8 1-99 0-255 0-32 3 0-65535
02 08 01-63 00-FF 00-20 03 0000-FFFF
Message Length = 8 bytes