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How to properly test an RS-232 connection between a PC and most SmartAVI RS-232 compliant devices
After you have established a connection to your device use the
following commands:
<CHK> stands for CHECKSUM: the <CHK> value is
calculated by performing an XOR of the full com-
mand string. For example: //F00M12I03 will XOR
to the hexadecimal value 0x42, therefore the value
of <CHK> is 0x42.
CALCULATING THE <CHK>
IMPORTANT
RS-232 Specifications (continued)
Содержание CATXPro
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