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...

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...

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,...

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...

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...

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...

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...

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...

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...

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...