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Appendix D
Memory Areas
455
Word(s)
Function
Bit(s)
254
00
1-minute clock pulse bit
01
0.02-second clock pulse bit
02 and 03
Reserved for function expansion. Do not use.
04
Overflow Flag (for signed binary calculations)
05
Underflow Flag (for signed binary calculations)
06
Differential Monitor End Flag
07
Step Flag
08
MTR Execution Flag
09
7SEG Execution Flag
10
DSW Execution Flag
11
Interrupt Input Unit Error Flag
12
Reserved by system
13
Interrupt Programming Error Flag
14
Group-2 High-density I/O Unit Error Flag
15
Special Unit Error Flag (Special I/O, PC Link, Host Link, Remote I/O Master)
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
04
Carry (CY) Flag
05
Greater Than (GR) Flag
06
Equals (EQ) Flag
07
Less Than (LE) Flag
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)
263
00 to 15
Number of interrupt subroutine (action) with longest execution time.
(8000 to 8512) 8000 to 8007, 8099
Bit 15: Interrupt Flag
264
00 to 03
RS-232C Port Error Code
0: No error
2: Framing 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
F: When in Peripheral Bus Mode
1: Parity error
3: Overrun error
12
Peripheral Port Communications Error in General I/O Mode
13
Peripheral Port Send Ready Flag 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
RS-232C Port Reception Counter in General I/O Mode
266
00 to 15
Peripheral Reception Counter in General I/O Mode (BCD)
Содержание SYSMAC C200HS
Страница 1: ...Cat No W235 E1 05 C200HS SYSMAC Programmable Controllers...
Страница 2: ...C200HS Programmable Controllers Operation Manual Revised February 2002...
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Страница 379: ...371 SR word Corresponding key s Bit 279 03 04 05 3 06 07 VER 08 09 Monitoring Operation and Modifying Data Section 7 1...
Страница 470: ...468 Programmer Program Date Page Word Contents Notes Word Contents Notes Data Storage...
Страница 471: ...469 Programmer Program Date Page TC address T or C Set value Notes TC address T or C Set value Notes Timers and Counters...