536
Memory Areas
Appendix C
Shared Flags/Bits (AR 07 to AR 27)
AR 06
00 to 07
High-speed Counter 2 Range Comparison Flags
Bit 00 ON: Counter PV satisfies conditions for comparison range 1
Bit 01 ON: Counter PV satisfies conditions for comparison range 2
Bit 02 ON: Counter PV satisfies conditions for comparison range 3
Bit 03 ON: Counter PV satisfies conditions for comparison range 4
Bit 04 ON: Counter PV satisfies conditions for comparison range 5
Bit 05 ON: Counter PV satisfies conditions for comparison range 6
Bit 06 ON: Counter PV satisfies conditions for comparison range 7
Bit 07 ON: Counter PV satisfies conditions for comparison range 8
08
High-speed Counter 2 Comparison Flag
OFF: Stopped
ON: Comparing
09 to 15
Not used.
Word
Bit(s)
Function
AR 07
00
Controller Link Data Link Start Bit
OFF
→
ON: Start (This bit is ON when the power is turned ON.)
ON
→
OFF: Stop
01 to 11
Not used.
12
DIP Switch Pin 6 Flag
OFF: CPU Unit’s DIP switch pin No. 6 is OFF.
ON: CPU Unit’s DIP switch pin No. 6 is ON.
13 to 15
Not used.
AR 08
00 to 03
RS-232C Port Error Code
(1-digit number)
0: Normal completion; 1: Parity error; 2: Framing error; 3: Overrun error
04
RS-232C Port Error Flag
Turns ON when a communications error occurs at the CPU Unit’s built-in RS-232C port.
05
RS-232C Port Transmission Enabled Flag
Valid only when host link or RS-232C communications are used at the CPU Unit’s built-in RS-
232C port.
06
RS-232C Port Reception Completed Flag
Valid only when RS-232C communications are used at the CPU Unit’s built-in RS-232C port.
07
RS-232C Port Reception Overflow Flag
Valid only when host link or RS-232C communications are used at the CPU Unit’s built-in RS-
232C port.
08 to 11
Peripheral Port Error Code
(1-digit number)
0: Normal completion; 1: Parity error; 2: Framing error; 3: Overrun error
12
Peripheral Port Error Flag
Turns ON when a peripheral port communications error occurs.
13
Peripheral Port Transmission Enabled Flag
Valid only when host link or RS-232C communications are used.
14
Peripheral Port Reception Completed Flag
Valid only when RS-232C communications are used.
15
Peripheral Port Reception Overflow Flag
Valid only when host link or RS-232C communications are used.
AR 09
00 to 15
RS-232C Port Reception Counter
4 digits BCD; valid only when RS-232C communications are used.
AR 10
00 to 15
Peripheral Port Reception Counter
4 digits BCD; valid only when RS-232C communications are used.
Word
Bit(s)
Operation
