Omron CPM1 - PROGRAMING MANUAL 02-2001 Programming Manual page 599

Memory Areas
Word(s) Bit(s)
SR 255 00 0.1-second clock pulse (0.05 second ON; 0.05 second OFF)
01 0.2-second clock pulse (0.1 second ON; 0.1 second OFF)
02 1.0-second clock pulse (0.5 second ON; 0.5 second OFF)
03 Instruction Execution Error (ER) Flag
Turns ON when an error occurs during execution of an instruction.
04 Carry (CY) Flag
Turns ON when there is a carry in the results of an instruction execution.
05 Greater Than (GR) Flag
Turns ON when the result of a comparison operation is "greater."
06 Equals (EQ) Flag
Turns ON when the result of a comparison operation is "equal," or when the
result of an instruction execution is 0.
07 Less Than (LE) Flag
Turns ON when the result of a comparison operation is "less."
08 to 15 Not used.
AR Area
These bits mainly serve as flags related to SRM1 operation. These bits retain their status even after the SRM1
power supply has been turned off or when operation begins or stops.
Word(s) Bit(s)
AR 00, 00 to 15 Not used.
AR 01
AR 02
00 to 07 Not used.
08 to 11 Not used. (system use)
12 to 15 Not used.
AR 03 00 to 15 Not used.
AR 04 to 00 to 15 Slave Status Flag
AR 07
AR 08 00 to 03 RS-232C Error Code (1-digit number)
0: Normal completion
1: Parity error
2: Framing error
3: Overrun error
04 RS-232C Communications Error
05 RS-232C Transmission Enabled Flag
Valid only when Host Link, no-protocol communications are used.
06 RS-232C Reception Completed Flag
Valid only when no-protocol communications are used.
07 RS-232C Reception Overflow Flag
Valid only when no-protocol communications are used.
08 to 11 Programming Device Error Code
0: Normal completion
1: Parity error
2: Frame error
3: Overrun error
12 Programming Device Error Flag
13 Programming Device Transmission Enabled Flag
Valid only when Host Link, no-protocol communications are used.
14 Programming Device Reception Completed Flag
Valid only when no-protocol communications are used.
15 Programming Device Reception Overflow Flag
Valid only when no-protocol communications are used.
584
Function
Function
Appendix C
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