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Changes for page LX3V-4TC

Last modified by Stone Wu on 2022/09/14 08:35
From version 2.1
edited by Leo Wei
on 2022/06/08 14:42
Change comment: Renamed from xwiki:1 Module.Temperature.LX3V-4TC.WebHome
To version 3.1
edited by Stone Wu
on 2022/09/14 08:35
Change comment: There is no comment for this version

Summary

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Parent
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1 -1 Module.Temperature.WebHome
1 +Expansions.1 Module.Temperature.WebHome
Author
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1 -XWiki.admin
1 +XWiki.Stone
Content
... ... @@ -11,28 +11,19 @@
11 11  = **2 External dimensions** =
12 12  
13 13  (% style="text-align:center" %)
14 -[[image:LX3V-4TC_html_b228e95b12be2343.png||class="img-thumbnail" height="403" width="1000"]]
14 +[[image:LX3V-4TC_html_b228e95b12be2343.png||height="403" width="1000" class="img-thumbnail"]]
15 15  
16 -①Extension cable and connector
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)
17 17  
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 -
36 36  **Using crimp terminations**
37 37  
38 38  (((
... ... @@ -40,21 +40,20 @@
40 40  * Apply 0.5 to 0.8 N.m (5 to 8 kgf.cm) torque to tighten the terminals to prevent abnormal operation.
41 41  
42 42  (% style="text-align:center" %)
43 -[[image:LX3V-4TC_html_67891e8f02a25438.png||class="img-thumbnail" height="199" width="300"]]
34 +[[image:LX3V-4TC_html_67891e8f02a25438.png||height="199" width="300" class="img-thumbnail"]]
44 44  )))
45 45  
46 46  = **3 Terminal Layouts** =
47 47  
48 48  (% style="text-align:center" %)
49 -[[image:LX3V-4TC_html_784767a15ebff85b.png||class="img-thumbnail" height="465" width="500"]]
40 +[[image:LX3V-4TC_html_784767a15ebff85b.png||height="465" width="500" class="img-thumbnail"]]
50 50  
51 51  (((
52 -* The compensating cables that can be used for connecting with the thermocouple are the following.
43 +The compensating cables that can be used for connecting with the thermocouple are the following.
53 53  
54 -Type K: KX-G, KX-GS, KX-H, KX-HS, WX-G, WX-H, VX-G
45 +* Type K: KX-G, KX-GS, KX-H, KX-HS, WX-G, WX-H, VX-G
46 +* Type J: JX-G, JX-H
55 55  
56 -Type J: JX-G, JX-H
57 -
58 58  For every 10Ω of line resistance, the compensating cable will indicate a temperature 0.12°C higher than actual.
59 59  
60 60  Check the line resistance before using.
... ... @@ -73,7 +73,7 @@
73 73  **Environmental specification**
74 74  
75 75  (% class="table-bordered" %)
76 -|**Item**|**Specification**
66 +|=**Item**|=**Specification**
77 77  |Environmental specifications (excluding following)|Same as those for the LX3V base unit
78 78  |Dielectric withstand voltage|500V AC, 1min (between all terminals and ground)
79 79  
... ... @@ -80,9 +80,9 @@
80 80  **Power supply specification**
81 81  
82 82  (% class="table-bordered" %)
83 -|**Item**|**Description**
84 -|Analog circuits|±24V DC±10%,55mA
85 -|Digital circuits|24V DC,35mA(internal power supply from base unit)
73 +|=(% scope="row" %)**Item**|=**Description**
74 +|=Analog circuits|±24V DC±10%,55mA
75 +|=Digital circuits|24V DC,35mA(internal power supply from base unit)
86 86  
87 87  **Performance specification**
88 88  
... ... @@ -104,23 +104,26 @@
104 104  )))
105 105  |**Conversion speed**|(% colspan="4" %)(240ms ± 2%) × 4 channels (unused channels are not converted)
106 106  
97 +(% class="box infomessage" %)
98 +(((
107 107  **Note:** Earth-tipped thermocouples are not suitable for use with this module.
100 +)))
108 108  
109 109  **Analog input**
110 110  
111 111  (% class="table-bordered" %)
112 -|**Feature Conversion**|[[image:LX3V-4TC_html_c007c8dafe24466b.gif||class="img-thumbnail"]]|[[image:LX3V-4TC_html_c9d8982ef2fe950b.gif||class="img-thumbnail"]]
105 +|=(% scope="row" %)**Feature Conversion**|[[image:LX3V-4TC_html_c007c8dafe24466b.gif||class="img-thumbnail"]]|[[image:LX3V-4TC_html_c9d8982ef2fe950b.gif||class="img-thumbnail"]]
113 113  
114 114  **Miscellaneous**
115 115  
116 116  (% class="table-bordered" %)
117 -|**Item**|**Description**
118 -|Isolation|(((
110 +|=(% scope="row" %)**Item**|=**Description**
111 +|=Isolation|(((
119 119  Photo-coupler isolation between analog and digital circuits. DC/DC converter isolation of power from LX3V MPU.
120 120  
121 121  No isolation between analog channels.
122 122  )))
123 -|Total points|(((
116 +|=Total points|(((
124 124  8 points taken from the LX3V expansion bus
125 125  
126 126  (can be either inputs or outputs)
... ... @@ -129,53 +129,51 @@
129 129  **Buffer memory**
130 130  
131 131  (% class="table-bordered" %)
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
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
144 144  
145 145  1. The LX3V-4TC module communicates with the PLC via buffer memories.
146 146  1. BFMs #21 to #27 and #31 are reserved. All non-reserved BFMs can be read by the PLC using the FROM instruction.
147 147  1. BFMs (buffer memories) marked with an “*” can be written to, the special function block using the TO instruction.
148 148  
149 -* **Buffer Memory BFM #0: Thermocouple Type K or J selection mode**
142 +**Buffer Memory BFM #0: Thermocouple Type K or J selection mode**
150 150  
151 151  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.
152 152  
153 153  **Example**
154 154  
155 -0= Type K
148 +* 0= Type K
149 +* 1= Type J
150 +* 3= Not used
156 156  
157 -1= Type J
158 -
159 -3= Not used
160 -
161 161  (% style="text-align:center" %)
162 -[[image:LX3V-4TC_html_76092feedff738c5.png||class="img-thumbnail" height="236" width="400"]]
153 +[[image:LX3V-4TC_html_76092feedff738c5.png||height="236" width="400" class="img-thumbnail"]]
163 163  
164 164  * 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:
165 165  
166 166  __240ms (conversion time per channel) × 2channels (number of channels used) = 480ms (total conversion time)__
167 167  
168 -* **Buffer Memory BFMs #1 to #4: Number of temperature readings to be averaged**
159 +**Buffer Memory BFMs #1 to #4: Number of temperature readings to be averaged**
169 169  
170 170  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.
171 171  
172 -* **Buffer Memory BFMs #9 to #12 and #17 to #20: Present temperature**
163 +**Buffer Memory BFMs #9 to #12 and #17 to #20: Present temperature**
173 173  
174 174  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.
175 175  
176 176  **States information**
177 177  
178 -* **Buffer memory BFM#28: Digital range error latch**
169 +**Buffer memory BFM#28: Digital range error latch**
179 179  
180 180  BFM #29 b10 (digital range error) is used to judge whether the measured temperature is within the unit’s range or not.
181 181  
... ... @@ -186,28 +186,27 @@
186 186  |(% rowspan="2" %)Not used|High|Low|High|Low|High|Low|High|Low
187 187  |(% colspan="2" %)CH4|(% colspan="2" %)CH3|(% colspan="2" %)CH2|(% colspan="2" %)CH1
188 188  
189 -**Low:** Latches ON when temperature measurement data goes below the lowest temperature measurement limit.
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.
190 190  
191 -**High: **Turns ON when temperature measurement data goes above the highest temperature measurement limit, or when a thermocouple is disconnected.
192 -
193 193  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))
194 194  
195 195  An error can be cleared by writing K0 to BFM #28 using the TO instruction or turning off the power.
196 196  
197 -* **Buffer memory BFM#29: Error states**
187 +**Buffer memory BFM#29: Error states**
198 198  
199 199  (% class="table-bordered" %)
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
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
209 209  
210 -* **Identification Code Buffer Memory BFM #30**
200 +**Identification Code Buffer Memory BFM #30**
211 211  
212 212  The identification code or ID number for module is read from buffer memory BFM #30 using the FROM command.
213 213  
... ... @@ -215,35 +215,36 @@
215 215  
216 216  The PLC can use this facility in its program to identify the expansion module before commencing data transfer from and to the expansion module.
217 217  
218 -* **System block diagram**
208 +**System block diagram**
219 219  
220 220  (% style="text-align:center" %)
221 -[[image:LX3V-4TC_html_16d7fd78e3b1d23f.png||class="img-thumbnail" height="322" width="600"]]
211 +[[image:LX3V-4TC_html_16d7fd78e3b1d23f.png||height="322" width="600" class="img-thumbnail"]]
222 222  
223 223  = **5 Example** =
224 224  
225 225  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.
226 226  
227 -* **Example 1**
217 +**Example 1**
228 228  
229 229  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.
230 230  
231 231  (% style="text-align:center" %)
232 -[[image:LX3V-4TC_html_43f51c728463fc8c.png||class="img-thumbnail" height="149" width="500"]]
222 +[[image:LX3V-4TC_html_43f51c728463fc8c.png||height="149" width="500" class="img-thumbnail"]]
233 233  
234 234  * Specify the type of thermocouple, H3310 -> Block No.2 BFM#0. CH3 & CH4 are not used; CH2: Type J (1); CH1: Type K (0);
235 235  * Block No.2 BFM#30->(D2) identification code;
236 236  * When (K2030)= (D2), M1=ON. i.e. when identification code is K2030, M1=ON.
237 -* **Example 2**
238 238  
228 +**Example 2**
229 +
239 239  Transfer the error status to (M25 to M10), when error is found, M10=ON
240 240  
241 241  (% style="text-align:center" %)
242 -[[image:LX3V-4TC_html_8e3386c1b560c12a.png||class="img-thumbnail" height="107" width="500"]]
233 +[[image:LX3V-4TC_html_8e3386c1b560c12a.png||height="107" width="500" class="img-thumbnail"]]
243 243  
244 244  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)
245 245  
246 -* **Example 3**
237 +**Example 3**
247 247  
248 248  M10 represents b0 of BFM#29
249 249  
... ... @@ -250,10 +250,10 @@
250 250  M20 represents b10 of BFM#29
251 251  
252 252  (% style="text-align:center" %)
253 -[[image:LX3V-4TC_html_15bac225fffa5e5.png||class="img-thumbnail" height="129" width="500"]]
244 +[[image:LX3V-4TC_html_15bac225fffa5e5.png||height="129" width="500" class="img-thumbnail"]]
254 254  
255 255  (% style="text-align:center" %)
256 -[[image:LX3V-4TC_html_d59884b711c0f883.png||class="img-thumbnail" height="149" width="500"]]
247 +[[image:LX3V-4TC_html_d59884b711c0f883.png||height="149" width="500" class="img-thumbnail"]]
257 257  
258 258  * (K4)-> (BFM#1), (K4)-> (BFM#2). Number of samples is changed to 4 on both CH1 and CH2.
259 259  * (BFM#5)-> (D0), (BFM#6)-> (D1). Transfer the average temperature value in °C to the data registers.
... ... @@ -263,7 +263,7 @@
263 263  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.
264 264  
265 265  (% style="text-align:center" %)
266 -[[image:LX3V-4TC_html_24b3ab2479ed3b38.png||class="img-thumbnail" height="126" width="500"]]
257 +[[image:LX3V-4TC_html_24b3ab2479ed3b38.png||height="126" width="500" class="img-thumbnail"]]
267 267  
268 268  = **6 Diagnostics** =
269 269  
... ... @@ -277,7 +277,7 @@
277 277  
278 278  **Error checking**
279 279  
280 -* If the LX3V-4TC special function block does not seem to operate normally, check the following items.
271 +If the LX3V-4TC special function block does not seem to operate normally, check the following items.
281 281  
282 282  Check the status of the POWER LED.
283 283  
... ... @@ -298,12 +298,12 @@
298 298  
299 299  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.
300 300  
301 -**7.3 Checking special function block numbers**
292 +**Checking special function block numbers**
302 302  
303 303  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.
304 304  
305 305  (% style="text-align:center" %)
306 -[[image:LX3V-4TC_html_82dc23faccc052c2.png||class="img-thumbnail" height="349" width="1000"]]
297 +[[image:LX3V-4TC_html_82dc23faccc052c2.png||height="349" width="1000" class="img-thumbnail"]]
307 307  
308 308  = **7 EMC considerations** =
309 309