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Changes for page LX3V-4TC

Last modified by Stone Wu on 2022/09/14 08:35
From version 3.1
edited by Stone Wu
on 2022/09/14 08:35
Change comment: There is no comment for this version
To version 2.2
edited by Leo Wei
on 2022/06/08 14:42
Change comment: Update document after refactoring.

Summary

Details

Page properties
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Stone
1 +XWiki.admin
Content
... ... @@ -11,19 +11,28 @@
11 11  = **2 External dimensions** =
12 12  
13 13  (% style="text-align:center" %)
14 -[[image:LX3V-4TC_html_b228e95b12be2343.png||height="403" width="1000" class="img-thumbnail"]]
14 +[[image:LX3V-4TC_html_b228e95b12be2343.png||class="img-thumbnail" height="403" width="1000"]]
15 15  
16 -1. Extension cable and connector
17 -1. Com LED: Light when communicating
18 -1. Power LED: Light when connect to 24V
19 -1. State LED: Light when normal condition
20 -1. Module name
21 -1. Analog signal output terminal
22 -1. Extension module interface
23 -1. DIN rail mounting slot
24 -1. DIN rail hook
25 -1. Mounting holes (φ4.5)
16 +①Extension cable and connector
26 26  
18 +②Com LED: Light when communicating
19 +
20 +③Power LED: Light when connect to 24V
21 +
22 +④State LED: Light when normal condition
23 +
24 +⑤Module name
25 +
26 +⑥Analog signal output terminal
27 +
28 +⑦Extension module interface
29 +
30 +⑧DIN rail mounting slot
31 +
32 +⑨DIN rail hook
33 +
34 +⑩Mounting holes (φ4.5)
35 +
27 27  **Using crimp terminations**
28 28  
29 29  (((
... ... @@ -31,20 +31,21 @@
31 31  * Apply 0.5 to 0.8 N.m (5 to 8 kgf.cm) torque to tighten the terminals to prevent abnormal operation.
32 32  
33 33  (% style="text-align:center" %)
34 -[[image:LX3V-4TC_html_67891e8f02a25438.png||height="199" width="300" class="img-thumbnail"]]
43 +[[image:LX3V-4TC_html_67891e8f02a25438.png||class="img-thumbnail" height="199" width="300"]]
35 35  )))
36 36  
37 37  = **3 Terminal Layouts** =
38 38  
39 39  (% style="text-align:center" %)
40 -[[image:LX3V-4TC_html_784767a15ebff85b.png||height="465" width="500" class="img-thumbnail"]]
49 +[[image:LX3V-4TC_html_784767a15ebff85b.png||class="img-thumbnail" height="465" width="500"]]
41 41  
42 42  (((
43 -The compensating cables that can be used for connecting with the thermocouple are the following.
52 +* The compensating cables that can be used for connecting with the thermocouple are the following.
44 44  
45 -* Type K: KX-G, KX-GS, KX-H, KX-HS, WX-G, WX-H, VX-G
46 -* Type J: JX-G, JX-H
54 +Type K: KX-G, KX-GS, KX-H, KX-HS, WX-G, WX-H, VX-G
47 47  
56 +Type J: JX-G, JX-H
57 +
48 48  For every 10Ω of line resistance, the compensating cable will indicate a temperature 0.12°C higher than actual.
49 49  
50 50  Check the line resistance before using.
... ... @@ -63,7 +63,7 @@
63 63  **Environmental specification**
64 64  
65 65  (% class="table-bordered" %)
66 -|=**Item**|=**Specification**
76 +|**Item**|**Specification**
67 67  |Environmental specifications (excluding following)|Same as those for the LX3V base unit
68 68  |Dielectric withstand voltage|500V AC, 1min (between all terminals and ground)
69 69  
... ... @@ -70,9 +70,9 @@
70 70  **Power supply specification**
71 71  
72 72  (% class="table-bordered" %)
73 -|=(% scope="row" %)**Item**|=**Description**
74 -|=Analog circuits|±24V DC±10%,55mA
75 -|=Digital circuits|24V DC,35mA(internal power supply from base unit)
83 +|**Item**|**Description**
84 +|Analog circuits|±24V DC±10%,55mA
85 +|Digital circuits|24V DC,35mA(internal power supply from base unit)
76 76  
77 77  **Performance specification**
78 78  
... ... @@ -94,26 +94,23 @@
94 94  )))
95 95  |**Conversion speed**|(% colspan="4" %)(240ms ± 2%) × 4 channels (unused channels are not converted)
96 96  
97 -(% class="box infomessage" %)
98 -(((
99 99  **Note:** Earth-tipped thermocouples are not suitable for use with this module.
100 -)))
101 101  
102 102  **Analog input**
103 103  
104 104  (% class="table-bordered" %)
105 -|=(% scope="row" %)**Feature Conversion**|[[image:LX3V-4TC_html_c007c8dafe24466b.gif||class="img-thumbnail"]]|[[image:LX3V-4TC_html_c9d8982ef2fe950b.gif||class="img-thumbnail"]]
112 +|**Feature Conversion**|[[image:LX3V-4TC_html_c007c8dafe24466b.gif||class="img-thumbnail"]]|[[image:LX3V-4TC_html_c9d8982ef2fe950b.gif||class="img-thumbnail"]]
106 106  
107 107  **Miscellaneous**
108 108  
109 109  (% class="table-bordered" %)
110 -|=(% scope="row" %)**Item**|=**Description**
111 -|=Isolation|(((
117 +|**Item**|**Description**
118 +|Isolation|(((
112 112  Photo-coupler isolation between analog and digital circuits. DC/DC converter isolation of power from LX3V MPU.
113 113  
114 114  No isolation between analog channels.
115 115  )))
116 -|=Total points|(((
123 +|Total points|(((
117 117  8 points taken from the LX3V expansion bus
118 118  
119 119  (can be either inputs or outputs)
... ... @@ -122,51 +122,53 @@
122 122  **Buffer memory**
123 123  
124 124  (% class="table-bordered" %)
125 -|=(% scope="row" style="width: 216px;" %)**BFM**|=(% style="width: 859px;" %)**Description**
126 -|=(% style="width: 216px;" %)*#0|(% style="width:859px" %)Thermocouple Type K or J selection mode. At shipment: H0000
127 -|=(% style="width: 216px;" %)*#1→ #4|(% style="width:859px" %)CH1 to CH4 Averaged temperature reading to be averaged (1 to 4,096) Default = 8
128 -|=(% style="width: 216px;" %)*#5→ #8|(% style="width:859px" %)CH1 to CH4 Averaged temperature in 0.1°C units
129 -|=(% style="width: 216px;" %)*#9→ #12|(% style="width:859px" %)CH1 to CH4 Present temperature in 0.1°C units
130 -|=(% style="width: 216px;" %)*#13→ #16|(% style="width:859px" %)CH1 to CH4 Averaged temperature in 0.1°F units
131 -|=(% style="width: 216px;" %)*#17→ #20|(% style="width:859px" %)CH1 to CH4 Present temperature in 0.1°F units
132 -|=(% style="width: 216px;" %)*#21→ #27|(% style="width:859px" %)Reserved
133 -|=(% style="width: 216px;" %)*#28|(% style="width:859px" %)Digital range error latch
134 -|=(% style="width: 216px;" %)#29|(% style="width:859px" %)Error status
135 -|=(% style="width: 216px;" %)#30|(% style="width:859px" %)Identification code K2030
136 -|=(% style="width: 216px;" %)#31|(% style="width:859px" %)Software version
132 +|**BFM**|**Description**
133 +|*#0|Thermocouple Type K or J selection mode. At shipment: H0000
134 +|*#1→ #4|CH1 to CH4 Averaged temperature reading to be averaged (1 to 4,096) Default = 8
135 +|*#5→ #8|CH1 to CH4 Averaged temperature in 0.1°C units
136 +|*#9→ #12|CH1 to CH4 Present temperature in 0.1°C units
137 +|*#13→ #16|CH1 to CH4 Averaged temperature in 0.1°F units
138 +|*#17→ #20|CH1 to CH4 Present temperature in 0.1°F units
139 +|*#21→ #27|Reserved
140 +|*#28|Digital range error latch
141 +|#29|Error status
142 +|#30|Identification code K2030
143 +|#31|Software version
137 137  
138 138  1. The LX3V-4TC module communicates with the PLC via buffer memories.
139 139  1. BFMs #21 to #27 and #31 are reserved. All non-reserved BFMs can be read by the PLC using the FROM instruction.
140 140  1. BFMs (buffer memories) marked with an “*” can be written to, the special function block using the TO instruction.
141 141  
142 -**Buffer Memory BFM #0: Thermocouple Type K or J selection mode**
149 +* **Buffer Memory BFM #0: Thermocouple Type K or J selection mode**
143 143  
144 144  BFM #0 is used to select Type K or J thermocouples for each channel. Each digit of a 4 digit hexadecimal number corresponds to one channel, the least significant digit being channel 1.
145 145  
146 146  **Example**
147 147  
148 -* 0= Type K
149 -* 1= Type J
150 -* 3= Not used
155 +0= Type K
151 151  
157 +1= Type J
158 +
159 +3= Not used
160 +
152 152  (% style="text-align:center" %)
153 -[[image:LX3V-4TC_html_76092feedff738c5.png||height="236" width="400" class="img-thumbnail"]]
162 +[[image:LX3V-4TC_html_76092feedff738c5.png||class="img-thumbnail" height="236" width="400"]]
154 154  
155 155  * A/D conversion time is 240ms per channel. When “3" (unused) is set for a channel, A/D conversion is not executed for that channel, therefore, the total conversion time is decreased. In the above example, the conversion time is as follows:
156 156  
157 157  __240ms (conversion time per channel) × 2channels (number of channels used) = 480ms (total conversion time)__
158 158  
159 -**Buffer Memory BFMs #1 to #4: Number of temperature readings to be averaged**
168 +* **Buffer Memory BFMs #1 to #4: Number of temperature readings to be averaged**
160 160  
161 161  When the number of temperature readings to be averaged is specified for BFMs #1 to #4, the averaged data is stored in BFMs #5 to #8 (°C) and #13 to #16 (°F). Only the range 1 to 256 is valid for the number of temperature readings to be averaged. If a value outside of this range is entered, a default value of 8 is used.
162 162  
163 -**Buffer Memory BFMs #9 to #12 and #17 to #20: Present temperature**
172 +* **Buffer Memory BFMs #9 to #12 and #17 to #20: Present temperature**
164 164  
165 165  These BFMs store the present value of the input data. This value is stored in units of 0.1°C or 0.1°F, but the resolution is only 0.4°C or 0.72°F for Type K and 0.3°C or 0.54°F for Type J.
166 166  
167 167  **States information**
168 168  
169 -**Buffer memory BFM#28: Digital range error latch**
178 +* **Buffer memory BFM#28: Digital range error latch**
170 170  
171 171  BFM #29 b10 (digital range error) is used to judge whether the measured temperature is within the unit’s range or not.
172 172  
... ... @@ -177,27 +177,28 @@
177 177  |(% rowspan="2" %)Not used|High|Low|High|Low|High|Low|High|Low
178 178  |(% colspan="2" %)CH4|(% colspan="2" %)CH3|(% colspan="2" %)CH2|(% colspan="2" %)CH1
179 179  
180 -* **Low:** Latches ON when temperature measurement data goes below the lowest temperature measurement limit.
181 -* **High: **Turns ON when temperature measurement data goes above the highest temperature measurement limit, or when a thermocouple is disconnected.
189 +**Low:** Latches ON when temperature measurement data goes below the lowest temperature measurement limit.
182 182  
191 +**High: **Turns ON when temperature measurement data goes above the highest temperature measurement limit, or when a thermocouple is disconnected.
192 +
183 183  When an error occur the temperature data before the error is latched. If the measured value returns to within valid limits the temperature data returns to normal operation. (Note: The error remains latched in (BFM #28))
184 184  
185 185  An error can be cleared by writing K0 to BFM #28 using the TO instruction or turning off the power.
186 186  
187 -**Buffer memory BFM#29: Error states**
197 +* **Buffer memory BFM#29: Error states**
188 188  
189 189  (% class="table-bordered" %)
190 -|=(% scope="row" style="width: 210px;" %)**BFM#29 Bit device**|=(% style="width: 578px;" %)**ON**|=**OFF**
191 -|=(% style="width: 210px;" %)b0: Error|(% style="width:578px" %)When any of b1 to b3 is ON A/D conversation is stopped for the error channel|No error
192 -|=(% style="width: 210px;" %)b1: Reserved|(% style="width:578px" %)Reserved|Reserved
193 -|=(% style="width: 210px;" %)b2: Power source|(% style="width:578px" %)24V DC power supply failure|Power supply normal
194 -|=(% style="width: 210px;" %)b3: Hardware error|(% style="width:578px" %)A/D converter or other hardware failure|Hardware normal
195 -|=(% style="width: 210px;" %)b4 to b9: Reserved|(% style="width:578px" %)Reserved|Reserved
196 -|=(% style="width: 210px;" %)b10: Digital range error|(% style="width:578px" %)Digital output/analog input value is outside the specified range.|Digital output value is normal
197 -|=(% style="width: 210px;" %)b11: Averaging error|(% style="width:578px" %)Selected number of averaged results is outside the available range. See BFM#1 to #4|Averaging is normal (between 1 to 256)
198 -|=(% style="width: 210px;" %)b12 to b15: Reserved|(% style="width:578px" %)Reserved|Reserved
200 +|**BFM#29 Bit device**|**ON**|**OFF**
201 +|b0: Error|When any of b1 to b3 is ON A/D conversation is stopped for the error channel|No error
202 +|b1: Reserved|Reserved|Reserved
203 +|b2: Power source|24V DC power supply failure|Power supply normal
204 +|b3: Hardware error|A/D converter or other hardware failure|Hardware normal
205 +|b4 to b9: Reserved|Reserved|Reserved
206 +|b10: Digital range error|Digital output/analog input value is outside the specified range.|Digital output value is normal
207 +|b11: Averaging error|Selected number of averaged results is outside the available range. See BFM#1 to #4|Averaging is normal (between 1 to 256)
208 +|b12 to b15: Reserved|Reserved|Reserved
199 199  
200 -**Identification Code Buffer Memory BFM #30**
210 +* **Identification Code Buffer Memory BFM #30**
201 201  
202 202  The identification code or ID number for module is read from buffer memory BFM #30 using the FROM command.
203 203  
... ... @@ -205,36 +205,35 @@
205 205  
206 206  The PLC can use this facility in its program to identify the expansion module before commencing data transfer from and to the expansion module.
207 207  
208 -**System block diagram**
218 +* **System block diagram**
209 209  
210 210  (% style="text-align:center" %)
211 -[[image:LX3V-4TC_html_16d7fd78e3b1d23f.png||height="322" width="600" class="img-thumbnail"]]
221 +[[image:LX3V-4TC_html_16d7fd78e3b1d23f.png||class="img-thumbnail" height="322" width="600"]]
212 212  
213 213  = **5 Example** =
214 214  
215 215  In the program shown below, the LX3V-4TC occupies the position of special block number 2 (that is the third closest block to the PLC). A Type K thermocouple is used on CH1 and a Type J on CH2. CH3 and CH4 are not used. The averaging count is four. The averaged values in degrees C of input channels CH1 and CH2 stored respectively in data registers D0 and D3.
216 216  
217 -**Example 1**
227 +* **Example 1**
218 218  
219 219  This initial step checks that the special function block placed at position 2 is actually an LX3V-4TC, i.e. its unit identification number is 2030 (BFM #30). This step is optional, but it provides a software check that the system has been configured correctly.
220 220  
221 221  (% style="text-align:center" %)
222 -[[image:LX3V-4TC_html_43f51c728463fc8c.png||height="149" width="500" class="img-thumbnail"]]
232 +[[image:LX3V-4TC_html_43f51c728463fc8c.png||class="img-thumbnail" height="149" width="500"]]
223 223  
224 224  * Specify the type of thermocouple, H3310 -> Block No.2 BFM#0. CH3 & CH4 are not used; CH2: Type J (1); CH1: Type K (0);
225 225  * Block No.2 BFM#30->(D2) identification code;
226 226  * When (K2030)= (D2), M1=ON. i.e. when identification code is K2030, M1=ON.
237 +* **Example 2**
227 227  
228 -**Example 2**
229 -
230 230  Transfer the error status to (M25 to M10), when error is found, M10=ON
231 231  
232 232  (% style="text-align:center" %)
233 -[[image:LX3V-4TC_html_8e3386c1b560c12a.png||height="107" width="500" class="img-thumbnail"]]
242 +[[image:LX3V-4TC_html_8e3386c1b560c12a.png||class="img-thumbnail" height="107" width="500"]]
234 234  
235 235  This step provides optional monitoring of the LX3V-4TC Error Buffer Memory (#29). If there is an Error on the LX3V-4TC, bit b0 of BFM #29 will be set on. This can be read by this program step, and output as a bit device in the PLC (Y010 in this example). Additional Error devices can be output in a similar manner, e.g. b10 BFM #29 Digital range error. (see example 3)
236 236  
237 -**Example 3**
246 +* **Example 3**
238 238  
239 239  M10 represents b0 of BFM#29
240 240  
... ... @@ -241,10 +241,10 @@
241 241  M20 represents b10 of BFM#29
242 242  
243 243  (% style="text-align:center" %)
244 -[[image:LX3V-4TC_html_15bac225fffa5e5.png||height="129" width="500" class="img-thumbnail"]]
253 +[[image:LX3V-4TC_html_15bac225fffa5e5.png||class="img-thumbnail" height="129" width="500"]]
245 245  
246 246  (% style="text-align:center" %)
247 -[[image:LX3V-4TC_html_d59884b711c0f883.png||height="149" width="500" class="img-thumbnail"]]
256 +[[image:LX3V-4TC_html_d59884b711c0f883.png||class="img-thumbnail" height="149" width="500"]]
248 248  
249 249  * (K4)-> (BFM#1), (K4)-> (BFM#2). Number of samples is changed to 4 on both CH1 and CH2.
250 250  * (BFM#5)-> (D0), (BFM#6)-> (D1). Transfer the average temperature value in °C to the data registers.
... ... @@ -254,7 +254,7 @@
254 254  The "FROM" instruction reads the average temperatures (BFM #5 to #8) for input channels CH1 and CH2 of the LX3V-4TC. If direct temperature readings are required BFM #9 and #10 should be read instead, e.g.
255 255  
256 256  (% style="text-align:center" %)
257 -[[image:LX3V-4TC_html_24b3ab2479ed3b38.png||height="126" width="500" class="img-thumbnail"]]
266 +[[image:LX3V-4TC_html_24b3ab2479ed3b38.png||class="img-thumbnail" height="126" width="500"]]
258 258  
259 259  = **6 Diagnostics** =
260 260  
... ... @@ -268,7 +268,7 @@
268 268  
269 269  **Error checking**
270 270  
271 -If the LX3V-4TC special function block does not seem to operate normally, check the following items.
280 +* If the LX3V-4TC special function block does not seem to operate normally, check the following items.
272 272  
273 273  Check the status of the POWER LED.
274 274  
... ... @@ -289,12 +289,12 @@
289 289  
290 290  Otherwise: Check buffer memory #29 (error status). If any bits (b2 and b3) are ON, then this is why the A/D LED is OFF.
291 291  
292 -**Checking special function block numbers**
301 +**7.3 Checking special function block numbers**
293 293  
294 294  Other special units of blocks that use FROM/TO commands, such as analog input blocks, analog output blocks and high-speed counter blocks, can be directly connected to the base unit of the LX3V programmable controller or to the right side of other extension blocks or units. Each special block is consecutively numbered from 0 to 15 beginning from the one closest to the base unit. A maximum of 16 special blocks can be connected.
295 295  
296 296  (% style="text-align:center" %)
297 -[[image:LX3V-4TC_html_82dc23faccc052c2.png||height="349" width="1000" class="img-thumbnail"]]
306 +[[image:LX3V-4TC_html_82dc23faccc052c2.png||class="img-thumbnail" height="349" width="1000"]]
298 298  
299 299  = **7 EMC considerations** =
300 300