Changes for page 02 Devices

Last modified by Mora Zhou on 2023/11/22 14:13

From version 16.1
edited by Stone Wu
on 2022/09/23 17:21
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To version 3.1
edited by Stone Wu
on 2022/07/13 20:33
Change comment: Renamed from xwiki:PLC Editor2.1 User manual.2\.1 LX5V user manual.02.WebHome

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Title
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1 -02 Devices
1 +02 Description of each device
Parent
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1 -PLC Editor2.WebHome
1 +PLC Editor2.1 User manual.2\.1 LX5V user manual.WebHome
Content
... ... @@ -1,30 +1,31 @@
1 -= Device list =
1 +**Device list**
2 2  
3 -|=(% scope="row" %)**Classification**|=**Type**|=**Device name**|=**Sign**|=**Range**|=**Number**
4 -|=(% rowspan="10" %)User devices|Bit|Input|X|0 to 1777|Octal number
5 -|(% scope="row" %)Bit|Output|Y|0 to 1777|Octal number
6 -|(% scope="row" %)Bit|Internal relay|M|0 to 7999|Decimal number
7 -|(% scope="row" %)Bit|Step relay|S|0 to 4095|Decimal number
8 -|(% scope="row" %)Bit/word|Timer|T|0 to 511|Decimal number
9 -|(% scope="row" %)Bit/word|Counter|C|0 to 255|Decimal number
10 -|(% scope="row" %)Bit/double word|Long counter|LC|0 to 255|Decimal number
11 -|(% scope="row" %)Bit/double word|High-speed counter|HSC|0 to 15|Decimal number
12 -|(% scope="row" %)Word|Data Register|D|0 to 7999|Decimal number
13 -|(% scope="row" %)Word|Data Register|R|0 to 29999|Decimal number
14 -|=(% rowspan="2" %)System devices|Bit|Special|SM|0 to 4095|Decimal number
15 -|(% scope="row" %)Word|Special register|SD|0 to 4095|Decimal number
16 -|=(% rowspan="3" %)Index registers|Word|Index register|[D]|0 to 7999|Decimal number
17 -|(% scope="row" %)Word|Index register|V|0 to 7|Decimal number
18 -|(% scope="row" %)Double word|Long index register|Z|0 to 7|Decimal number
19 -|=Nested|Bit|Nested|N|0 to 7|Decimal number
20 -|=Pointer|-|Pointer|P|0 to 4095|Decimal number
21 -|=(% rowspan="3" %)Constant|-|Decimal constant|K|-|Decimal number
22 -|(% scope="row" %)-|Hexadecimal constant|H|-|Hexadecimal number
23 -|(% scope="row" %)Single precision floating point|Real constant|E|-|-
3 +(% class="table-bordered" %)
4 +|**Classification**|**Type**|**Device name**|**Sign**|**Range**|**Mark**
5 +|(% rowspan="10" %)User device|Bit|Input|X|0 to 1777|Octal number
6 +|Bit|Output|Y|0 to 1777|Octal number
7 +|Bit|Internal relay|M|0 to 7999|Decimal number
8 +|Bit|Step relay|S|0 to 4095|Decimal number
9 +|Bit/word|Timer|T|0 to 511|Decimal number
10 +|Bit/word|Counter|C|0 to 255|Decimal number
11 +|Bit/double word|Long counter|LC|0 to 255|Decimal number
12 +|Bit/double word|High-speed counter|HSC|0 to 15|Decimal number
13 +|Word|Data Register|D|0 to 7999|Decimal number
14 +|Word|Data Register|R|0 to 29999|Decimal number
15 +|(% rowspan="2" %)System software|Bit|Special|SM|0 to 4095|Decimal number
16 +|Word|Special register|SD|0 to 4095|Decimal number
17 +|(% rowspan="3" %)Index register|Word|Index register|[D]|0 to 7999|Decimal number
18 +|Word|Index register|V|0 to 7|Decimal number
19 +|Double word|Long index register|Z|0 to 7|Decimal number
20 +|Nested|Bit|Nested|N|0 to 7|Decimal number
21 +|Pointer|-|Pointer|P|0 to 4095|Decimal number
22 +|(% rowspan="3" %)Constant|-|Decimal constant|K|-|Decimal number
23 +|-|Hexadecimal constant|H|-|Hexadecimal number
24 +|Single precision floating point|Real constant|E|-|-
24 24  
25 -= User registers =
26 += **User device** =
26 26  
27 -== Input relay (X) ==
28 +== {{id name="_Toc10233"/}}**{{id name="_Toc9353"/}}{{id name="_Toc1366"/}}{{id name="_Toc17120"/}}Input relay (X)** ==
28 28  
29 29  The input relay represents the original PLC external input signal status, and the external signal status is detected through the input X port. 0 represents the external signal is open, and 1 represents the external signal is closed.
30 30  
... ... @@ -34,7 +34,7 @@
34 34  
35 35  When an expansion module is connected, the extended X point will also use the X point as the component of the input signal state, and the occupied X point is the starting position of the X point used by the PLC with 0 as the end of the X point, such as PLC Occupy 17 to 24 X points (X0 to X21, X0 to X27), at this time the X points of the expansion module will be stored starting from X30.
36 36  
37 -== Output relay (Y) ==
38 +== {{id name="_Toc2094"/}}**Output relay (Y)** ==
38 38  
39 39  The output relay is a Devices directly connected to the hardware port of the external user control device, and logically corresponds to the physical output port of the PLC. After the PLC scans the user program each time, the component status of the Y relay will be transmitted to the hardware port of the PLC. 0 means the output port is open; 1 means the output port is closed.
40 40  
... ... @@ -42,17 +42,17 @@
42 42  
43 43  In terms of hardware, according to the different output components, it can be divided into relay type, transistor type, solid state relay type, etc. If there are output expansion module ports, they are numbered in sequence starting from the main module.
44 44  
45 -== Internal relay (M) ==
46 +== {{id name="_Toc10273"/}}**Internal relay (M)** ==
46 46  
47 47  The auxiliary relay M element is used as an intermediate variable in the execution of the user program, just like the auxiliary relay in the actual electronic control system, used for the transmission of status information, and multiple M variables can also be combined into word variables. M variables and external ports There is no direct connection, but you can copy X to M through program statements, or copy M to Y to connect with the outside world. An M variable can be used unlimited times.
48 48  
49 49  The auxiliary relay M is identified by Signs such as M0, M1........., M7999, and its serial number is numbered in decimal system.
50 50  
51 -== Status relay (S) ==
52 +== **Status relay (S)** ==
52 52  
53 53  The state relay S is used for the design and execution of the step program. The STL step instruction is used to control the transfer of the step state S, simplifying the programming design. If STL programming is not used, S can be used as an M variable. State S variables are identified by Signs such as S0, S1...S4095, and their serial numbers are numbered in decimal system.
54 54  
55 -== Timer (T) ==
56 +== **Timer (T)** ==
56 56  
57 57  The timer T is equivalent to the time relay in the relay system and is used to complete the timing function. The timer is an addition expression. When the timer expires, the current value and the set value are the same value.
58 58  
... ... @@ -62,36 +62,28 @@
62 62  
63 63  When the timer coil (OUT T instruction) is executed, the timer coil is turned on/off, the current value is updated, and the contact is turned on/off.
64 64  
65 -|=Registers|=Timer
66 -|=T0 to T191|100ms timer
67 -|=T192 to T199|100ms subroutine timer (used in the subroutine, even if the subroutine is not called, it will still be updated)
68 -|=T200 to T245|10ms timer
69 -|=T246 to T249|1ms accumulative timer
70 -|=T250 to T255|10ms cumulative timer
71 -|=T256 to T383|1ms timer
72 -|=T384 to T511|0.1ms timer
66 +(% class="table-bordered" %)
67 +|**Device number**|(% style="width:582px" %)**Timer**|(% style="width:162px" %)**Device number**|(% style="width:210px" %)**Timer**
68 +|T0 to T191|(% style="width:582px" %)100ms timer|(% style="width:162px" %)T246 to T249|(% style="width:210px" %)1ms accumulative timer
69 +|(% rowspan="2" %)T192 to T199|(% rowspan="2" style="width:582px" %)100ms subroutine timer (used in the subroutine, even if the subroutine is not called, it will still be updated)|(% style="width:162px" %)T250 to T255|(% style="width:210px" %)10ms cumulative timer
70 +|(% style="width:162px" %)T256 to T383|(% style="width:210px" %)1ms timer
71 +|T200 to T245|(% style="width:582px" %)10ms timer|(% style="width:162px" %)T384 to T511|(% style="width:210px" %)0.1ms timer
73 73  
74 -**General-purpose timer (T0 to T245)**
73 +**(1) General-purpose timer (T0 to T245)**{{id name="OLE_LINK328"/}}
75 75  
76 76  (% style="text-align:center" %)
77 -[[image:02(1)_html_b1b48247f79e373c.gif||height="165" width="598" class="img-thumbnail"]]
76 +[[image:02(1)_html_b1b48247f79e373c.gif||height="214" width="800" class="img-thumbnail"]]
78 78  
79 -As shown in the figure above: when the normally open contact of X0 is turned on, the current value counter of T200 starts timing from zero and counts up the 10ms clock pulse.
78 +As shown in the figure above: when the normally open contact of X0 is turned on, the current value counter of T200 starts timing from zero and counts up the 10ms clock pulse. When the current value is equal to the set value 223, the timer's normally open contact is turned on and the normally closed contact is turned off, that is, the output contact of T200 will act after its coil is driven for 2.23s. After the normally open contact of X0 is disconnected, T200 is reset because the coil is de-energized. After reset, its normally open contact is disconnected, and the normally closed contact is connected, and the current value returns to zero.
80 80  
81 -When the current value is equal to the set value 223, the timer's normally open contact is turned on and the normally closed contact is turned off, that is, the output contact of T200 will act after its coil is driven for 2.23s. After the normally open contact of X0 is disconnected, T200 is reset because the coil is de-energized. After reset, its normally open contact is disconnected, and the normally closed contact is connected, and the current value returns to zero.
80 +**(2) Accumulative timer (T246 to T255)**
82 82  
83 -**Accumulative timer (T246 to T255)**
84 -
85 85  (% style="text-align:center" %)
86 -[[image:02(1)_html_ad4dcbfaa1b0c0af.gif||height="228" width="598" class="img-thumbnail"]]
83 +[[image:02(1)_html_ad4dcbfaa1b0c0af.gif||height="305" width="800" class="img-thumbnail"]]
87 87  
88 -* When the X1 normally open contact in Figure b is turned on, the current value counter of T250 accumulates the 10ms clock pulse.
89 -* When the normally open contact of X1 is disconnected or stopped, the counting stops, and the current value remains unchanged.
90 -* When the normally open contact of X1 is turned on again, counting continues.
91 -* When the accumulated time t1+t2 is 4.2s, the current value is equal to the set value of 420, the normally open contact of T250 is turned on and the normally closed contact is turned off.
92 -* When the normally open contact of X2 is turned on, T250 will reset (because the coil of the accumulative timer will not reset when the power is off, you need to use the normally open contact of X2 and the reset instruction to force T250 to reset).
85 +When the X1 normally open contact in Figure b is turned on, the current value counter of T250 accumulates the 10ms clock pulse. When the normally open contact of X1 is disconnected or stopped, the counting stops, and the current value remains unchanged. When the normally open contact of X1 is turned on again, counting continues. When the accumulated time t1+t2 is 4.2s, the current value is equal to the set value of 420, the normally open contact of T250 is turned on and the normally closed contact is turned off. When the normally open contact of X2 is turned on, T250 will reset (because the coil of the accumulative timer will not reset when the power is off, you need to use the normally open contact of X2 and the reset instruction to force T250 to reset).
93 93  
94 -**Setting value**
87 +**(3) Setting value**
95 95  
96 96  The timer time can use the constants (K, H) in the program memory as the set value, or can be specified indirectly by the content of the data register (D).
97 97  
... ... @@ -100,34 +100,28 @@
100 100  
101 101  After PLC is powered on, multiplication is performed, D3=D0*2. Use the data of D3 as the timing time value of T10.
102 102  
103 -== Counter (C) ==
96 +== {{id name="_Toc21206"/}}**{{id name="_Toc31862"/}}{{id name="_Toc26590"/}}{{id name="_Toc29366"/}}Counter (C)** ==
104 104  
105 -The counter is used to complete the counting function. Each counter contains a coil, a contact, and a timer value register. Whenever the driving signal of the counter coil changes from OFF to ON, the counter reading value increases by 1.
98 +The counter is used to complete the counting function. Each counter contains a coil, a contact, and a timer value register. Whenever the driving signal of the counter coil changes from OFF to ON, the counter reading value increases by 1, if the timer value reaches the preset time value, Its contact action, a contact (NO contact) is closed, b contact (NC contact) is opened; if the timing value is cleared, the output a contact will be opened, and b contact (NC contact) will be closed. Some timers have features such as power-down retention, accumulation, etc., and maintain the value before power-down after power-on again.
106 106  
107 -If the timer value reaches the preset time value, its contact action, a contact (NO contact) is closed, b contact (NC contact) is opened;
108 -
109 -If the timing value is cleared, the output a contact will be opened, and b contact (NC contact) will be closed. Some timers have features such as power-down retention, accumulation, etc., and maintain the value before power-down after power-on again.
110 -
111 111  The counters are identified by C0, C1,..., C255, and the order is numbered in decimal.
112 112  
113 113  The counter (C) is a 16-bit counter.
114 114  
115 115  (% style="text-align:center" %)
116 -[[image:02(1)_html_740e6ef971b9c6de.gif||height="175" width="598" class="img-thumbnail"]]
105 +[[image:02(1)_html_740e6ef971b9c6de.gif||height="234" width="800" class="img-thumbnail"]]
117 117  
118 -The setting value of the 16-bit up counter is 1 to 32767. As shown in the working process of the up counter in Figure c, after the normally open contact of X1 in the figure is turned on, C0 is reset, its corresponding bit storage unit is set to 0, the normally open contact of C0 is disconnected, and the normally closed contact Point is turned on, and its current counter value is set to 0 at the same time.
107 +The setting value of the 16-bit up counter is 1 to 32767. As shown in the working process of the up counter in Figure c, after the normally open contact of X1 in the figure is turned on, C0 is reset, its corresponding bit storage unit is set to 0, the normally open contact of C0 is disconnected, and the normally closed contact Point is turned on, and its current counter value is set to 0 at the same time. X2 provides a counting input signal. When the reset input circuit of the counter is disconnected and the counting input circuit changes from disconnected to connected (that is, the rising edge of the counting pulse), the current value of counter C0 is increased by 1. After 10 count pulses, the current value of C0 is equal to the set value of 10, and its corresponding bit storage unit is set to 1, and the Y0 contact is turned on at this time. When counting pulses again, the current value does not change until the reset input signal is turned on, and the current value of the counter is set to 0.
119 119  
120 -X2 provides a counting input signal. When the reset input circuit of the counter is disconnected and the counting input circuit changes from disconnected to connected (that is, the rising edge of the counting pulse), the current value of counter C0 is increased by 1. After 10 count pulses, the current value of C0 is equal to the set value of 10, and its corresponding bit storage unit is set to 1, and the Y0 contact is turned on at this time. When counting pulses again, the current value does not change until the reset input signal is turned on, and the current value of the counter is set to 0.
109 +== {{id name="_Toc30139"/}}**{{id name="_Toc23467"/}}{{id name="_Toc16112"/}}{{id name="_Toc2290"/}}Long Counter (LC)** ==
121 121  
122 -== Long counter (LC) ==
123 -
124 124  The long counter (LC) is basically the same as the counter (C), but compared to the counter (C), the long counter (LC) is a 32-bit register, and the range of values that can be counted is larger.
125 125  
126 126  The long counter is identified by LC0, LC1,...,LC255, and the sequence is numbered in decimal.
127 127  
128 -== High-speed counter (HSC) ==
115 +== {{id name="_Toc27105"/}}**{{id name="_Toc1133"/}}{{id name="_Toc1198"/}}{{id name="_Toc19952"/}}High-speed counter (HSC)** ==
129 129  
130 -High-speed counter (HSC) is a device used for counting through external input of high-speed pulse signals. HSC is a 32-bit register.
117 + High-speed counter (HSC) is a device used for counting through external input of high-speed pulse signals. HSC is a 32-bit register.
131 131  
132 132  The corresponding parameter configuration can be configured through: “project management” -> “parameters” -> “high-speed counter configuration”:
133 133  
... ... @@ -137,34 +137,35 @@
137 137  (% style="text-align:center" %)
138 138  [[image:02(1)_html_a2d0f82f3579adff.png||class="img-thumbnail"]]
139 139  
140 -== Data register (D&R) ==
141 141  
128 +
129 +== **Data Register (D & R)** ==
130 +
142 142  Registers are used for data calculation and storage, such as the calculation and calculation of timers, counters, and analog parameters. The width of each register is 16 bits. If 32bit instructions are used, the adjacent registers are automatically formed into 32bit registers for use, the lower address is the low byte, and the higher address is the high byte.
143 143  
144 -* The address range of D register: D0 to D7999;
145 -* The address range of R register: R0 to R29999.
133 +The address range of D register: D0 to D7999; the address range of R register: R0 to R29999.
146 146  
147 147  The data involved in operations in most of our series PLC instructions are processed as signed numbers. For 16-bit registers, bit15 is the sign bit (0 represents a positive number, 1 represents a negative number); for a 32-bit register, the high byte bit15 It is the sign bit, and the value range is -32768 to 32767.
148 148  
149 -When 32-bit data needs to be processed, the two adjacent D registers can be formed into a 32-bit double word. For example, when accessing D100 in 32-bit format, use the high address D101 register as the high word and the high byte bit 15 as The sign bit of a double word can handle values from -2147483648 to 2147483647.
137 +When 32-bit data needs to be processed, the two adjacent D registers can be formed into a 32-bit double word. For example, when accessing D100 in 32-bit format, use the high address D101 register as the high word and the high byte bit 15 as The sign bit of a double word can handle values from -2147483648 to 2 147483647.
150 150  
151 -= System device =
139 += {{id name="_Toc24649"/}}**System device** =
152 152  
153 -== Special Relay (SM) ==
141 +== {{id name="_Toc26153"/}}**{{id name="_Toc29513"/}}{{id name="_Toc18631"/}}{{id name="_Toc28930"/}}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" %)__Special relays (SM) list__>>path:https://docs.we-con.com.cn/bin/view/PLC%20Editor2/15/#HAppendix1SpecialRelay28SM29]](%%).
145 +{{id name="OLE_LINK152"/}}For details, please refer to [[(% class="wikiinternallink wikiinternallink wikiinternallink" %)__Special relays (SM) list__>>path:#_Attachment 1 Special Relay (SM)]](%%).
158 158  
159 -== Special Register (SD) ==
147 +== {{id name="_Toc7566"/}}**{{id name="_Toc3384"/}}{{id name="_Toc32434"/}}{{id name="_Toc20897"/}}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" %)__Special register (SD) list__>>path:https://docs.we-con.com.cn/bin/view/PLC%20Editor2/15/#HAppendix2SpecialRegister28SD29]](%%).
151 +For details, please refer to [[(% class="wikiinternallink wikiinternallink wikiinternallink" %)__Special register (SD) list__>>path:#_Appendix 2 Special Register (SD)]](%%).
164 164  
165 -= Index Register =
153 += {{id name="_Toc18802"/}}**Index Register** =
166 166  
167 -== Index register ([D]) ==
155 +== {{id name="_Toc2075"/}}**{{id name="_Toc5787"/}}{{id name="_Toc5824"/}}{{id name="_Toc2076"/}}Index register ([D])** ==
168 168  
169 169  The index register is used to modify the index of the Devices. [D] The index register is actually the same as the data register D, ranging from D0 to D7999. The input method is as follows, just add [D] directly after the Devices:
170 170  
... ... @@ -185,9 +185,9 @@
185 185  
186 186  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.
187 187  
188 -= Nesting =
176 += {{id name="_Toc29907"/}}**{{id name="_Toc2190"/}}{{id name="_Toc18837"/}}Nesting** =
189 189  
190 -== Nesting (N) ==
178 +== {{id name="_Toc10381"/}}**{{id name="_Toc9090"/}}{{id name="_Toc18834"/}}{{id name="_Toc11480"/}}Nesting (N)** ==
191 191  
192 192  Nesting is a device used in master station control instructions (MC/MCR instructions)*1 to program operating conditions through a nested structure. Specify with a small number (order from N0 to N7) from the outside of the nested structure.
193 193  
... ... @@ -196,27 +196,27 @@
196 196  
197 197  *1 is an instruction used to create an efficient ladder switching program by opening and closing the common bus of the Circuit program.
198 198  
199 -= pointer =
187 += {{id name="_Toc31133"/}}**pointer** =
200 200  
201 -== Pointer (P) ==
189 +== {{id name="_Toc9036"/}}**{{id name="_Toc12926"/}}{{id name="_Toc20167"/}}{{id name="_Toc17677"/}}Pointer (P)** ==
202 202  
203 203  The pointer is the device used in the jump instruction (CJ instruction).
204 204  
205 205  At present, the CALL instruction directly uses the subroutine name to call, and no longer uses the P pointer.
206 206  
207 -= Constant =
195 += {{id name="_Toc3845"/}}**Constant** =
208 208  
209 209  The constants are explained below.
210 210  
211 -== Decimal constant (K) ==
199 +== {{id name="_Toc24739"/}}**{{id name="_Toc31877"/}}{{id name="_Toc5216"/}}{{id name="_Toc13896"/}}Decimal constant (K)** ==
212 212  
213 213  “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.
214 214  
215 -== Hexadecimal constant (H) ==
203 +== {{id name="_Toc23697"/}}**{{id name="_Toc8455"/}}{{id name="_Toc19156"/}}{{id name="_Toc18932"/}}Hexadecimal constant (H)** ==
216 216  
217 217  “H” is the Sign of hexadecimal number, specified by H□ (example: H123), mainly used to designate the value of the operand of the application instruction. The value range of the constant H is 0000 to FFFF; in the 32-bit instruction, the value range of the constant K is 0000, 0000 to FFFF, FFFF.
218 218  
219 -== Real number constant (E) ==
207 +== {{id name="_Toc9652"/}}**{{id name="_Toc27560"/}}{{id name="_Toc27972"/}}{{id name="_Toc17774"/}}Real number constant (E)** ==
220 220  
221 221  “E” is the single-precision floating-point number representation Sign, specified by E□ (example: E1.23), mainly used to specify the value of the operand of the application instruction, the value range of the single-precision floating-point number E is ±1.175495*10 -38 to ±3.402823*10+38 (±1.175495 E-38 to ±3.402823 E+38) and 0 (7 effective digits).
222 222  
... ... @@ -225,7 +225,7 @@
225 225  
226 226   (The address occupies D1 and D0)
227 227  
228 -== String constant ==
216 +== {{id name="_Toc20728"/}}**{{id name="_Toc22438"/}}{{id name="_Toc27030"/}}{{id name="_Toc32625"/}}String constant** ==
229 229  
230 230  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:
231 231  
... ... @@ -232,7 +232,7 @@
232 232  (% style="text-align:center" %)
233 233  [[image:02(1)_html_61bdd1807e91322f.png||class="img-thumbnail"]]
234 234  
235 -= Power-down retention setting =
223 += {{id name="_Toc15009"/}}**Power-down retention setting** =
236 236  
237 237  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”.
238 238  
... ... @@ -239,9 +239,9 @@
239 239  (% style="text-align:center" %)
240 240  [[image:02(1)_html_6ba62f454f76a539.png||class="img-thumbnail"]]
241 241  
242 -**✎Note: **The X and Y registers do not support the power-down save function.
230 +**{{id name="OLE_LINK153"/}}✎Note: **The X and Y registers do not support the power-down save function.
243 243  
244 -= Special use of device =
232 += {{id name="_Toc8668"/}}**Special use of device** =
245 245  
246 246  **(1) Use bits to form words**
247 247