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Changes for page 02 Devices

Last modified by Mora Zhou on 2023/11/22 14:13
From version 21.2
edited by Jim
on 2023/08/08 09:45
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To version 16.1
edited by Stone Wu
on 2022/09/23 17:21
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1 -XWiki.Jim
1 +XWiki.Stone
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150 150  
151 151  = System device =
152 152  
153 -== Special relay (SM) ==
153 +== Special Relay (SM) ==
154 154  
155 155  The special relay SM is an internal relay with a certain specification inside the programmable controller, so it cannot be used in the program like ordinary internal relays. It can be turned ON/OFF as needed to control the PLC.
156 156  
157 -For details, please refer to [[(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)__Special relays (SM) list__>>path:https://docs.we-con.com.cn/bin/view/PLC%20Editor2/15/#HAppendix1SpecialRelay28SM29]](%%).
157 +For details, please refer to [[(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)__Special relays (SM) list__>>path:https://docs.we-con.com.cn/bin/view/PLC%20Editor2/15/#HAppendix1SpecialRelay28SM29]](%%).
158 158  
159 -== Special register (SD) ==
159 +== Special Register (SD) ==
160 160  
161 161  The special register SD is an internal register whose specifications are determined within the programmable controller, so it cannot be used in the program like a normal internal register, and the corresponding data can be written as needed to control the PLC.
162 162  
163 -For details, please refer to [[(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)__Special register (SD) list__>>path:https://docs.we-con.com.cn/bin/view/PLC%20Editor2/15/#HAppendix2SpecialRegister28SD29]](%%).
163 +For details, please refer to [[(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)__Special register (SD) list__>>path:https://docs.we-con.com.cn/bin/view/PLC%20Editor2/15/#HAppendix2SpecialRegister28SD29]](%%).
164 164  
165 -= Index register =
165 += Index Register =
166 166  
167 167  == Index register ([D]) ==
168 168  
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173 173  
174 174  The supported soft components for index modification are as follows:
175 175  
176 -* Constant K, H plus index modification, such as D0 = 10, K10[D0] result = 10 + 10 = 20.
177 -* Constant E and character strings do not support index modification.
178 -* Add index modification to the data device, such as D0 = 10, the result of D10[D0] is the value of D20. Even if D10[D0] is used in a double word instruction, the double word value is the value of D20 (low word) and D21 (high word).
179 -* Bit device plus index modification, such as D0 = 10, the result of M0[D0] is the value of M10.
180 -* Bits are combined into words with index modification. For example, D0 = 10, K4M10[D0] first takes M10 offset by 10 addresses, and then combines them. The result is equivalent to K4M10.
176 +Constant K, H plus index modification, such as D0 = 10, K10[D0] result = 10 + 10 = 20.
181 181  
178 +Constant E and character strings do not support index modification.
179 +
180 +Add index modification to the data device, such as D0 = 10, the result of D10[D0] is the value of D20. Even if D10[D0] is used in a double word instruction, the double word value is the value of D20 (low word) and D21 (high word).
181 +
182 +Bit device plus index modification, such as D0 = 10, the result of M0[D0] is the value of M10.
183 +
184 +Bits are combined into words with index modification. For example, D0 = 10, K4M10[D0] first takes M10 offset by 10 addresses, and then combines them. The result is equivalent to K4M10.
185 +
182 182  Whether the index modification can be used depends on whether each instruction supports the format, you can check the "offset modification" in the description of the available device for each instruction.
183 183  
184 184  = Nesting =
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192 192  
193 193  *1 is an instruction used to create an efficient ladder switching program by opening and closing the common bus of the Circuit program.
194 194  
195 -= Pointer =
199 += pointer =
196 196  
197 197  == Pointer (P) ==
198 198  
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206 206  
207 207  == Decimal constant (K) ==
208 208  
209 -“K” is a Sign that represents a decimal integer and is specified by K£ (for example: K123). It is mainly used to designate the set value of a timer or counter or the value in the operand of an application instruction. In 16bit instructions, the value range of constant K is -32768 to 32767; in 32bit instructions, the value range of constant K is -2147483648 to 2147483647.
213 +“K” is a Sign that represents a decimal integer and is specified by K£ (for example: K123). It is mainly used to designate the set value of a timer or counter or the value in the operand of an application instruction. In 16bit instructions, the value range of constant K is -32768 to 32767; in 32bit instructions, the value range of constant K is -247483648 to 2147483647.
210 210  
211 211  == Hexadecimal constant (H) ==
212 212  
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219 219  (% style="text-align:center" %)
220 220  [[image:02(1)_html_8a090037e802011b.png||class="img-thumbnail"]]
221 221  
222 - The address occupies D1 and D0.
226 + (The address occupies D1 and D0)
223 223  
224 224  == String constant ==
225 225  
226 -The character string constant is the device that specifies the character string, and only supports the ASCII code character set, and any character string ends with a NULL character (00H). To use string devices, you must use double quotation marks to modify the characters, as follows to convert the string to ASCII characters and fill in the device starting with D0:
230 +The character string constant is the device that specifies the character string, and only supports the ASCII code character set, and any character string ends with a NULL character (00H). To use string devices, you must use double eye marks to modify the characters, as follows to convert the string to ASCII characters and fill in the device starting with D0:
227 227  
228 228  (% style="text-align:center" %)
229 229  [[image:02(1)_html_61bdd1807e91322f.png||class="img-thumbnail"]]
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230 230  
231 231  = Power-down retention setting =
232 232  
233 -The user can freely configure the power-off storage range within the range of the Devices.
237 +The user can freely configure the power-off storage range within the range of the Devices. The constant configuration is located in: “Project Management”→”Parameters”→”PLC Parameters”→”Device Latch”.
234 234  
235 -The constant configuration is located in: “Project Management”→”Parameters”→”PLC Parameters”→”Device Latch”.
236 -
237 237  (% style="text-align:center" %)
238 238  [[image:02(1)_html_6ba62f454f76a539.png||class="img-thumbnail"]]
239 239  
240 -(% class="box infomessage" %)
241 -(((
242 242  **✎Note: **The X and Y registers do not support the power-down save function.
243 -)))
244 244  
245 245  = Special use of device =
246 246  
247 -**Use bits to form words**
246 +**(1) Use bits to form words**
248 248  
249 249  Format: KnB
250 250  
251 -* K is a fixed character.
252 -* The value of n is 1 to 8, which means that (n * 4) bits are combined into a word, such as K4M0 is a combination of M0 to M15.
253 -* B is the bit device number.
250 +K is a fixed character.
254 254  
252 +The value of n is 1 to 8, which means that (n * 4) bits are combined into a word, such as K4M0 is a combination of M0 to M15.
253 +
254 +B is the bit device number.
255 +
255 255  Example: Set a total of 32 bits M0 to M31 at the same time.
256 256  
257 257  (% style="text-align:center" %)
258 258  [[image:02(1)_html_93f997406ac1572a.png||class="img-thumbnail"]]
259 259  
260 -(% class="box infomessage" %)
261 -(((
262 262  **✎Note: **KnB type can also support index modification.
263 -)))
264 264  
265 -**Take the bit in the word**
263 +**(2) Take the bit in the word**
266 266  
267 267  Format: D.b
268 268  
269 -* D is the number of data device D (R is not available).
270 -* b is the bit number that needs to be taken, hexadecimal, and the value range is 0 to F.
267 +D is the number of data device D (R is not available).
271 271  
269 +b is the bit number that needs to be taken, hexadecimal, and the value range is 0 to F.
270 +
272 272  Example: bit14 in D2000 is set and Y0 is output
273 273  
274 274  (% style="text-align:center" %)
275 275  [[image:02(1)_html_8908a96754754a6.png||class="img-thumbnail"]]
276 276  
277 -(% class="box infomessage" %)
278 -(((
279 279  **✎Note: **D.b type can also support index modification.
280 -)))