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35
Word(s)
Function
Bit(s)
255
00
0.1-second clock pulse bit
01
0.2-second clock pulse bit
02
1.0-second clock pulse bit
03
Instruction Execution Error (ER) Flag
These flags are turned OFF when the END(01)
i
i
i
d
h i
’ b
04
Carry (CY) Flag
g
(
)
instruction is executed, so their status can’t be
monitored from a Programming Console
05
Greater Than (GR) Flag
monitored from a Programming Console.
Refer to Appendix C for a table showing which
06
Equals (EQ) Flag
Refer to Appendix C for a table showing which
instructions affect these flags.
07
Less Than (LE) Flag
instructions affect these flags.
08 to 15
Reserved by system (used for TR bits)
256 to 261
00 to 15
Reserved by system
262
00 to 15
Longest interrupt subroutine (action) execution time (0.1-ms units)
263
00 to 15
Number of interrupt subroutine (action) with longest execution time. (8000 to 8255)
(Bit 15 is the Interrupt Flag)
264
00 to 03
RS-232C Port Error Code
0: No error
2: Framing error
4: FCS error
1: Parity error
3: Overrun error
04
RS-232C Port Communications Error
05
RS-232C Port Send Ready Flag
06
RS-232C Port Reception Completed Flag
07
RS-232C Port Reception Overflow Flag
08 to 11
Peripheral Port Error Code in General I/O Mode
0: No error
2: Framing error
1: Parity error
3: Overrun error
12
Peripheral Port Communications Error in General I/O Mode
13
Peripheral Port Send Ready Flag in in General I/O Mode
14
Peripheral Port Reception Completed Flag in General I/O Mode
15
Peripheral Port Reception Overflow Flag in General I/O Mode
265
00 to 15
NT Link (1:N) Mode
Bits 00 to 07: Communicating with PT Flags for Units 0 to 7
Bits 08 to 15: Registering PT Priority Flags for Units 0 to 7
RS-232C Mode
Bits 00 to 15: RS-232C Port Reception Counter
266
00 to 15
Peripheral Reception Counter in RS-232C Mode
267
00 to 04
Reserved by system (not accessible by user)
05
Host Link Level 0 Send Ready Flag
06 to 12
Reserved by system (not accessible by user)
13
Host Link Level 1 Send Ready Flag
14 to 15
Reserved by system (not accessible by user)
268
00 to 15
Communications Board Error Information
269
00 to 07
Memory Cassette Contents 00: Nothing; 01: UM; 02: IOM; 03: HIS
08 to 10
Memory Cassette Capacity
0: 0 KW (no cassette); 2: 4 or 8 KW; 3: 16 KW; 4: 32 KW
11 to 13
Reserved by system (not accessible by user)
14
EEPROM Memory Cassette Protected or EPROM Memory Cassette Mounted Flag
15
Memory Cassette Flag
SR (Special Relay) Area
Section 3-4
Содержание SYSMAC C200HE
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Страница 3: ...C200HX C200HG C200HE Programmable Controllers Operation Manual Revised August 2004 ...
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