Samsung Ht As700 User Manual

							41
Special Registers
Word registers F000 to F015 
AddressFunctionDescription
F000 register System check/control System self-check/program checking, operation control
F001 register System check/clock 0.01/0.02/0.1 ms timer output, calculation results, carry flag
F002 register Link control Link installation and operation mode setting
F003 register Link control Link installation and operation mode setting
F004 register Link status flag Link participating station information
F005 register Link status flag Link participating station information
F006 register Link status flag Link data receiving information flag
F007 register Link status flag Link data receiving information flag
F008 register Remote control flag Remote operation control flag
F009 register Remote control flag Remote operation control flag
F010 register Remote control flag Remote operation control flag
F011 register Remote control flag Remote operation control flag
F012 registerUser-defined 
communication flagFor port COM2
User-defined communication control flag
F013 register System reservation
F014 register PID control PID operation mode and operation/stop control flag
F015 register PID control PID operation mode and operation/stop control flag
 
						

							42
Word register F000 (F0.0 to F0.15)
Only a bit process is available.
AddressFunctionDescriptionNormal status
F0.00 System checkWhen the power is applied, the system self-checks the 
ROM. Should any fault exist, the error lamp is turned on. 
Output and operation are halted. OFF
F0.01 CPU ROM checkWhen the power is applied, the system self-checks the 
ROM. Should any fault exist, the error lamp is turned on. 
Output and operation are halted. OFF
F0.02 CPU RAM checkWhen the power is applied, the system self-checks the 
RAM. Should any fault exist, the error lamp is turned on. 
Output and operation are haltedOFF
F0.03User program 
memory errorIf the user program memory is damaged or the program is 
faulty, the error lamp is turned on. Output and operation 
are halted.OFF
F0.04Program syntax 
errorThe CPU initially runs and checks the user program’s 
syntax. In the case of an error, the error lamp is turned on. 
Output and operation are halted.OFF
F0.05Module range 
errorIndicates an invalid R word (>64) used. OFF
F0.06Module change 
errorOn when an I/O module is removed/added/fails while the 
system is running. The error lamp is on and the CPU keeps 
running. Turned off when the error is corrected.OFF
F0.07 Module type errorOn when the I/O module information that is stored in the 
CPU and module that is installed are different types, the 
error lamp is turned on. Operation stops.OFF
F0.08 Input data controlOff when the running CPU input module’s data is not 
updated. (Input update is turned Off.) ON
F0.09Output data 
controlOff to suspend updating of the output modules while the 
CPU is in the Run state. (Output update is turned Off). The 
outputs are maintained in their last valid state prior to 
update being disabled. ON
F0.10 All output offTurns all outputs off while CPU is in the Run state. 
(Outputs are disabled)ON
F0.11Constant cycle 
interruptOn when the constant cycle interrupt instructions are used. 
(Refer to the INT instructions.)
(The cycle time is defined by the user.)OFF
F0.12 Watchdog error On when a scan time exceeds the watchdog set time. OFF
F0.13Disable module 
type checkingOn when the CPU starts the initial Run and the program is 
checked without performing I/O module type verification.
F0.14Program changes 
during runningOn when a user corrects the program while in Run mode. If 
there are any syntax errors, the CPU is stopped.
F0.15 Run state controlOn when the CPU is in the Run state. Off when stopped or 
paused.ON
 
						

							43
Word register F1 (F1.0 to F1.15)
Only a bit process is available.
The 16 bits in the F1 address provide the CPU’s special function and self-diagnosis result. They are used for 
status contacts only, and are not used to modify or control the PLC. Only the F1.5 instantaneous interrupt display contact 
should be used as an output contact by the user, to be turned off after power loss indication.
NOTE
AddressFunctionDescriptionRemarks
F1.0 First single scanMaintain On state for first single-scan period, when the CPU 
shanges its status stop to Run.
F1.1 Scan clockCycle On/Off state for each scan during the program. 
(1Scan On, 1Scan Off)
F1.2 0.02-second clock10 ms: On, 10 ms: Off
F1.3 0.1-second clock50 ms: On, 50 ms: Off
F1.4 1-second clock500 ms: On, 500 ms: Off
F1.5Instantaneous 
interruptOn when power is off for 20 ms or more. Maintained
F1.6CPU running 
statusOn when the CPU is in the run state. 
F1.7Keep area 
error displayOn when the K retentive data is destroyed and/or changed.
F1.8 Carry flag On in the event of carry when performing math instruction.
F1.9Division 
by zero errorOn when the denominator of division commands is zero.
F1.10Range designation 
errorOn when the absolute address exceeds the specified range.
F1.11 Reserved System use area Do not use
F1.12W area error 
indicationSystem use area
F1.13 Reserved System use area Do not use
F1.14 Reserved System use area Do not use
F1.15 Reserved System use area Do not use
10m S10m S 10m S
50m S50m S 50m S
500mS500mS 500mS
NOTE
 
						

							44
Word register F12 (F12.0 to F12.15)
Only a bit process is available.
Special registers SR0 to SR016 (W2560 to W2576) 
May be modified - each is composed of 1 word.
AddressFunctionDescriptionRemarks
F12.0 RTC check On when the RTC is enabled. -
F12.2 Flash On when the 9.6 KW of flash memory is installed. -
F12.3 Flash On when the 16 KW of flash memory is installed. -
F12.5 Battery errorOn when the battery is not connected or the voltage is 
lower than the backup voltage.-
F12.7Periodical scan 
errorOn when any error exists in the periodical program.
F12.10 RTC set error On when there is an error setting the RTC. Output
F12.11Saving Flash and 
checking bootOff when the program is normally saved into Flash by 
setting F12.15 On.Output
F12.12EEPROM backup 
ch eckOn when the program in EEPROM is the same with that in 
RAM.
F12.13 RTC Set 1On when you change the year, month, day, or date. Off 
when the data set is normal.I/O
F12.14 RTC Set 2On when you change the hour, minute, or second. Off 
when the data set is normal.I/O
F12.15 Saving FlashOn when you save the current program into the flash. Off 
when the data set is normal.I/O
AddressFunctionDescription
SR000 CPU ID numberIndicates the CPU ID number in the lower 8 bits. 0 to 223 are the valid user-
defined values, 255 is the default value.
SR001CPU stateIndicates current CPU information state. (run/stop/remote control/error)
Error = 1
CPU run control (same as F0.15)
CPU switch remote control (REM) =1
CPU switch RUN = 1
CPU switch STOP= 0
SR2 Watchdog time Indicates the user program watchdog time (unit: msec)
SR3 Scan timeIndicates the scan time when executing a program. Updated at every scan 
(unit: msec)
SR4 Max. scan time Indicates maximum value of scan time when executing a program.
SR5 
to SR7Link module 
numberLink module number as set by the link # 1, 2, 3
SR8 PID table PID register block start address
SR9 
to SR10Reserved System use area
SR11 
to SR16Remote I/O 
informationRemote setup area
MSB           ←
                       03         02         01        00
 
						

							45
Special registers SR017 to SR511 (W2577 to W3071) 
May be changed - each is composed of 1 word.
* Applied when using wire link modules
AddressFunctionDescription
SR017System error 
informationGives result of self-diagnosis by CPU. Indicates error content .
Watchdog time error = ON
Undefined instruction = ON
Peripheral device fault = ON
Misc. logic faults = ON
Logic circuit fault = ON
Microcomputer fault = ON
SR018Location of 
undefined 
instructionIndicates the location of the instruction (the step number) that caused an 
undefined instruction error during program execution.
SR019 Reserved System use area
SR020 Multiplication Stores high order bit values upon executing 16 bit multiplication instructions.
SR021 Lower remainderStores the low order bit values of remainder after a division instruction has 
been executed.
SR022Higher 
remainderStores the high order bit values of the remainder after a division instruction 
has been executed.
SR023 to 
SR027Reserved System use area
SR028 to 
SR029Defective slot 
informationLocation of defective slots mounted onto the basic slot
SR030 to 
SR48Reserved System use area (syntax information and system information)
SR49 to SR79 Slot information Stores slot information for installed I/O modules.
SR261 to 
SR279 *Remote control 
domainContains remote I/O configuration data.
SR289 to 
SR297RTCContains real time clock information 
(year, month, day, hour, minute, second, date).
SR298 to 
SR373 *User-defined 
communication 
areaFor port COM2
User-defined communication area
SR374 to 
SR379 *Link error 
informationLink error information data.
SR380 to 
SR511Reserved System use area
MSB   ←
                7       6        5       4         3       2       1        0
 
						

							46
Program syntax error status register SR30 (W2590)
Indicates the result of the automatic check on the user program syntax 
when the programmer or GPC executes a syntax check, and when the 
operation mode is switched from the Stop state to the Run state. If the 
value of W2590 is not zero, F004 bit turns On. The error lamp also turns 
On.
Error correction method: 
Find the error in the CPU online mode and then correct the program.
WordBitDescription
SR300On if the I/O number range of bit process instruction is beyond the specified range or 
designates an external contact/output module which is not installed.
1 On if the channel number of the timer or the counter exceeds 255 or is duplicated.
2On if the bit or word number in the advanced instruction is beyond the specified range or if 
it designates a module which is not installed.
3On if a word number in the refresh instruction (INPR, OUTR) is beyond the specified range, 
or if it designates a module which is not installed.
4 On if an undefined instruction exists.
5 On in event of a user program memory writing error.
6 On in event of miscellaneous errors.
7 On if the user program memory is abnormal.
8On if an error on external I/O address and bit/word/double word numbers used occurs. For 
example, the first slot is set with an input module and OUT R00001 is designated.
9On if the label numbers of the JMP or CALL instructions exceed 63, the corresponding 
instruction LBL or SBR does not exist, and/or the corresponding LBL/SBR instructions exist 
prior to JMP/CALL instructions.
10 On if the label number of the LBL instruction exceeds 63 and/or is duplicated.
11 On if the JMPS/JMP instructions are mistakenly combined and/or used.
12On if the FOR/NEXT instructions are mistakenly combined and/or used more than four 
times. (Loop)
13On if SBR/RET instructions are not combined and/or used and/or the SBR instructions 
overlap or exceed 63.
14On if NT/RETI instructions are not combined and/or used and/or more than two sets of INT 
instructions are used.
15 On if no END instruction inserted automatically.
 
						

							47
Real-time clock registers SR289 to SR297 
(W2849 to W2857) 
Sets the time of the built-in clock (RTC) and stores and displays the 
present time. Data is stored in BCD format. 
(
○: b i t  =  0 ;  ×: bit change)
* Usable for NX70-CPU70p2 module only
In SR289, the year can be read in a 4-digit BCD.
Ex) $1998=1998, $2000=2000
SR289 to SR297 for clock functions are shown in BCD, so it is convenient to confirm in HEX.
Set the range as follows:
Year: 00 to 99, Month: 01 to 12, Day: 01 to 31, Day of Week: 01 to 07 (Sun. to Sat.)
Hour: 00 to 23, Minute: 00 to 59, Second: 00 to 59
1. Ladder setting method:
For example, current date and time are: Tuesday, March 21, 1996, 18:35:07
2. When changing the year, month, date, or day, new data is input in SR295, SR294, then the F12.14 bit is turned 
On. The F12.10 bit is kept Off.
3. When changing the hour, minute, and second, new data is input in SR297, SR296, then the F12.14 bit is turned 
on. If the new data is not set correctly, the F12.10 bit turns on.
4. The display date and set value are expressed in BCD so it is convenient to input as hex ($).
5. The year, month, and day are automatically changed.
Classification
AddressBit address
Adjustment/ 
indicationDetails
1514131211109876543210
Current 
timeSR289Year 
(4-digit BCD)
SR290 Date: day
○○××××××○○○○○×× ×
SR291 Year: month
○×××××××○○○×××× ×
SR292 Second: 00
○○××××××○○○○○○○ ○
SR293 Hour: minute○○××××××○○○○○○○ ○
Time 
settingSR294 Date: day
○○××××××○○○○○×× ×
SR295 Year: month
○×××××××○○○×××× ×
SR296 Second: 00
○○××××××○○○○○○○ ○
SR297 Hour: minute○○××××××○○○○○○○ ○
NOTE
Designate year, month, 
day
Designate hour, minute, second
Date indicators are 
Sun (01), Mon (02), Tue (03), 
Wed (04), Thu (05), Fri (06), 
and Sat (07)
 
						

							48
Timer/Counter Area
Timer/counter set value and present value addresses
If you change the above registers while the program is running or program them incorrectly, errors or damage 
may occur. Be sure you understand the programming procedures of the timer/counter thoroughly.
 
Channel
Set 
value 
(SV)Present
value 
(PV)
0 W2048 W2304
1 W2049 W2305
2 W2050 W2306
3 W2051 W2307
4 W2052 W2308
5 W2053 W2309
6 W2054 W2310
7 W2055 W2311
8 W2056 W2312
9 W2057 W2313
10 W2058 W2314
11 W2059 W2315
12 W2060 W2316
13 W2061 W2317
14 W2062 W2318
15 W2063 W2319
16 W2064 W2320
17 W2065 W2321
18 W2066 W2322
19 W2067 W2323
20 W2068 W2324
21 W2069 W2325
22 W2070 W2326
23 W2071 W2327
24 W2072 W2328
25 W2073 W2329
26 W2074 W2330
27 W2075 W2331
28 W2076 W2332
29 W2077 W2333
30 W2078 W2334
31 W2079 W2335
32 W2080 W2336
33 W2081 W2337
34 W2082 W2338
35 W2083 W2339
36 W2084 W2340
37 W2085 W2341
38 W2086 W2342
39 W2087 W2343
Channel
Set 
value 
(SV)Present 
value 
(PV)
40 W2088 W2344
41 W2089 W2345
42 W2090 W2346
43 W2091 W2347
44 W2092 W2348
45 W2093 W2349
46 W2094 W2350
47 W2095 W2351
48 W2096 W2352
49 W2097 W2353
50 W2098 W2354
51 W2099 W2355
52 W2100 W2356
53 W2101 W2357
54 W2102 W2358
55 W2103 W2359
56 W2104 W2360
57 W2105 W2361
58 W2106 W2362
59 W2107 W2363
60 W2108 W2364
61 W2109 W2365
62 W2110 W2366
63 W2111 W2367
64 W2112 W2368
65 W2113 W2369
66 W2114 W2370
67 W2115 W2371
68 W2116 W2372
69 W2117 W2373
70 W2118 W2374
71 W2119 W2375
72 W2120 W2376
73 W2121 W2377
74 W2122 W2378
75 W2123 W2379
76 W2124 W2380
77 W2125 W2381
78 W2126 W2382
79 W2127 W2383
ChannelSet value 
(SV)Present 
value 
(PV)
80 W2128 W2384
81 W2129 W2385
82 W2130 W2386
83 W2131 W2387
84 W2132 W2388
85 W2133 W2389
86 W2134 W2390
87 W2135 W2391
88 W2136 W2392
89 W2137 W2393
90 W2138 W2394
91 W2139 W2395
92 W2140 W2396
93 W2141 W2397
94 W2142 W2398
95 W2143 W2399
96 W2144 W2400
97 W2145 W2401
98 W2146 W2402
99 W2147 W2403
100 W2148 W2404
101 W2149 W2405
102 W2150 W2406
103 W2151 W2407
104 W2152 W2408
105 W2153 W2409
106 W2154 W2410
107 W2155 W2411
108 W2156 W2412
109 W2157 W2413
110 W2158 W2414
111 W2159 W2415
112 W2160 W2416
113 W2161 W2417
114 W2162 W2418
115 W2163 W2419
116 W2164 W2420
117 W2165 W2421
118 W2166 W2422
119 W2167 W2423
NOTE
 
						

							49
 
Channel
Set 
value 
(SV)Present 
value 
(PV)
120 W2168 W2424
121 W2169 W2425
122 W2170 W2426
123 W2171 W2427
124 W2172 W2428
125 W2173 W2429
126 W2174 W2430
127 W2175 W2431
128 W2176 W2432
129 W2177 W2433
130 W2178 W2434
131 W2179 W2435
132 W2180 W2436
133 W2181 W2437
134 W2182 W2438
135 W2183 W2439
136 W2184 W2440
137 W2185 W2441
138 W2186 W2442
139 W2187 W2443
140 W2188 W2444
141 W2189 W2445
142 W2190 W2446
143 W2191 W2447
144 W2192 W2448
145 W2193 W2449
146 W2194 W2450
147 W2195 W2451
148 W2196 W2452
149 W2197 W2453
150 W2198 W2454
151 W2199 W2455
152 W2200 W2456
153 W2201 W2457
154 W2202 W2458
155 W2203 W2459
156 W2204 W2460
157 W2205 W2461
158 W2206 W2462
159 W2207 W2463
160 W2208 W2464
161 W2209 W2465
162 W2210 W2466
163 W2211 W2467
164 W2212 W2468
165 W2213 W2469
Channel
Set 
value 
(SV)Present 
value 
(PV)
166 W2214 W2470
167 W2215 W2471
168 W2216 W2472
169 W2217 W2473
170 W2218 W2474
171 W2219 W2475
172 W2220 W2476
173 W2221 W2477
174 W2222 W2478
175 W2223 W2479
176 W2224 W2480
177 W2225 W2481
178 W2226 W2482
179 W2227 W2483
180 W2228 W2484
181 W2229 W2485
182 W2230 W2486
183 W2231 W2487
184 W2232 W2488
185 W2233 W2489
186 W2234 W2490
187 W2235 W2491
188 W2236 W2492
189 W2237 W2493
190 W2238 W2494
191 W2239 W2495
192 W2240 W2496
193 W2241 W2497
194 W2242 W2498
195 W2243 W2499
196 W2244 W2500
197 W2245 W2501
198 W2246 W2502
199 W2247 W2503
200 W2248 W2504
201 W2249 W2505
202 W2250 W2506
203 W2251 W2507
204 W2252 W2508
205 W2253 W2509
206 W2254 W2510
207 W2255 W2511
208 W2256 W2512
209 W2257 W2513
210 W2258 W2514
211 W2259 W2515ChannelSet value 
(SV)Present 
value (PV)
212 W2260 W2516
213 W2261 W2517
214 W2262 W2518
215 W2263 W2519
216 W2264 W2520
217 W2265 W2521
218 W2266 W2522
219 W2267 W2523
220 W2268 W2524
221 W2269 W2525
222 W2270 W2526
223 W2271 W2527
224 W2272 W2528
225 W2273 W2529
226 W2274 W2530
227 W2275 W2531
228 W2276 W2532
229 W2277 W2533
230 W2278 W2534
231 W2279 W2535
232 W2280 W2536
233 W2281 W2537
234 W2282 W2538
235 W2283 W2539
236 W2284 W2540
237 W2285 W2541
238 W2286 W2542
239 W2287 W2543
240 W2288 W2544
241 W2289 W2545
242 W2290 W2546
243 W2291 W2747
244 W2292 W2548
245 W2293 W2549
246 W2294 W2550
247 W2295 W2551
248 W2296 W2552
249 W2297 W2553
250 W2298 W2554
251 W2299 W2555
252 W2300 W2556
253 W2301 W2557
254 W2302 W2558
255 W2303 W2559
 Channel: The inherent number of the timer and the counter (numbers that are equivalent to 000 of TC000).
 Set Value (SV): The designated value for the timer (to turn On) and the counter (number of times On) to start 
operation.
 Present Value (PV): Current processing value of the timer (elapsed time) and the counter (number of counts).NOTE
 
						

							50Address (register)
Address refers to the location of memory being used. It can refer to the 
external I/O module and internal memory.
An address is categorized into 1 bit, 16 bits (word), or 32 bits (double 
word).
Bit
A bit is the minimum module required for calculation. It can be either 
On (1) or Off (0).
Byte
A byte is made up of 8 bits. It can hold data values from 0 to 255. In 
base 16, or hexadecimal, a byte can be expressed as 0 to FF. You 
cannot have a value greater than 255 when using one byte.
Word
A word is made of 16 bits. It can hold data values from 0 to 65,535. In 
base 16 a word can be expressed as 0 to FFFF. 
NX PLCs set R, M, K, F, and W areas into word areas and can be 
processed without any separate measures.
Double Word 
A double word is made of 32 bits. It can hold data values from 0 to 
4,294,976,295. In base 16, a double word can be expressed as 0 to 
FFFFFFFF. In the D32LT, a double word is made up of two consecutive 
word addresses as follows: 
Double word address = Start word address + Next word address.
Scan Time
The CPU follows a procedure in which it 1) reads the inputs, 2) 
processes the ladder program, and 3) updates the outputs. It 
continually repeats this process. This 3-step process is called a “scan,” 
and the time it takes to complete this process is the “scan time.” In a 
typical PLC application, most of the scan time is used to process the 
program. When programming, keep in mind that the scan time will 
increase as you increase the number of inputs and outputs and/or the 
size of the program
Edge
An edge is defined as the point when an input changes state. For 
example, a rising edge occurs during the very first scan after the input 
has changed from Off to On. A falling edge occurs after the input has 
changed from On to Off.
Example: When using W003,
     W003 (double word address) =  W003 (start word address) + W004 (next word address)