AH500 Programming Manual
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8. When chkHCR is ON, the practical device represented by HC50 is VarHCR1. Since the legal
range of deices is from HC0 to HC63, and HC50+10-1=HC59, which does not exceed the
range, HCR_ChkBit is ON.
Additional remark:
1. If the value (the practical device address) in S exceeds the device range, the instruction
CHKADR is not executed, SM is ON, and the error code in SR0 is 16#2003.
2. If the value in the operand n is not within the range between 1 and 1024, the instruction
CHKADR is not executed, SM is ON, and the error code in SR0 is 16#200B.
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