Wiki source code of 1 Communication

Version 46.1 by Ben on 2022/08/24 11:28

version	line-number	content
25.1	1	= Modbus RTU =
1.1	2
10.1	3	=== V-BOX as master ===
1.1	4
	5	Select the protocol “(% class="mark" %)Modbus RTU Slave(All Fuction)”,
	6
	7	(% class="mark" %)then set BaudRate,Port,Stop Bit,Data Bit,Parity
	8
	9	(% style="text-align:center" %)
6.1	10	[[image:1624342015914-382.png\|\|height="486" width="800" class="img-thumbnail"]]
1.1	11
10.1	12	=== V-BOX as slave ===
1.1	13
	14	Select the protocol “(% class="mark" %)Modbus RTU Master”,
	15
	16	(% class="mark" %)then set BaudRate,Port,Stop Bit,Data Bit,Parity
	17
	18	(% style="text-align:center" %)
6.1	19	[[image:1624348709622-711.png\|\|queryString="width=809&height=493" height="488" width="800" class="img-thumbnail"]]
1.1	20
	21	Address List
	22
	23	(% class="table-bordered" %)
	24	\|Type\|Register\|Function code & Description
	25	\|(% rowspan="11" %)Word\|(% rowspan="3" %)3\|04 (read input register: read current binary value in one or more input registers)
	26	\|06 (write single register: write a binary value to a holding register)
	27	\|10 (write values to multiple addresses )
	28	\|(% rowspan="3" %)4\|03 (read holding register: read current binary value in one or more holding registers)
	29	\|06 (write single register: write a binary value to a holding register)
	30	\|10 (write values to multiple addresses )
	31	\|(% rowspan="3" %)W6\|03 (read holding register: read current binary value in one or more holding registers)
	32	\|06 (write single register: write a binary value to a holding register)
	33	\|10 (write values to multiple addresses )
	34	\|(% rowspan="2" %)W16\|03 (read holding register: read current binary value in one or more holding registers)
	35	\|10 (write values to multiple addresses )
	36	\|(% rowspan="11" %)Bit\|(% rowspan="3" %)0\|01 (Read coil state)
	37	\|05 (Force a single coil to force the on/off state of a logic coil)
	38	\|0F (Write multiple bits, ie write continuously)
	39	\|(% rowspan="3" %)1\|02 (Read the input state)
	40	\|05 (Force a single coil to force the on/off state of a logic coil)
	41	\|0F (Write multiple bits)
	42	\|(% rowspan="3" %)W5\|01 (Read coil state to obtain the current state of a set of logic coils)
	43	\|05 (Force a single coil to force the on/off state of a logic coil)
	44	\|0F (Write multiple bits)
	45	\|(% rowspan="2" %)W15\|01 (Read coil state to obtain the current state of a set of logic coils)
	46	\|0F (Write multiple bits)
	47
24.1	48	= WECON PLC =
1.1	49
44.1	50	== LX3V 串行通信 ==
31.1	51
20.1	52	Supported series: WECON LX2V/ LX2E/ LX3V/LX3VP/LX3VE/LX3VM
1.1	53
20.1	54	HMI Settings
1.1	55
20.1	56	\|Item\|Settings\|Note
	57	\|Protocol\|WECON LX2V/ LX2E/ LX3V/LX3VP/LX3VE/LX3VM\|
	58	\|Connection\|RS422/RS485\|
	59	\|Baud rate\|9600\|
	60	\|Data bit\|7\|
	61	\|Parity\|EVEN\|
	62	\|Stop bit\|1\|
	63	\|PLC station No.\|1\|
1.1	64
20.1	65	Address List
	66
	67	\|Type\|Device registers\|HMI registers\|Format\|Range\|Note
	68	\|(% rowspan="6" %)Bit\|X\|X\|Xo\|0~~303237\|
	69	\|Y\|Y\|Y o\|0~~303237\|
	70	\|M\|M\|M d\|0~~99999\|
	71	\|T\|T\|T d\|0~~99999\|
	72	\|C\|C\|C d\|0~~99999\|
	73	\|S\|S\|S d\|0~~99999\|
	74	\|(% rowspan="8" %)Word\|X\|X\|Xo\|0~~303237\|
	75	\|Y\|Y\|Y o\|0~~303237\|
	76	\|M\|M\|M d\|0~~99999\|
	77	\|T\|T\|T d\|0~~99999\|
	78	\|C\|C\|C d\|0~~199\|
	79	\|D\|D\|D d\|0~~7999\|
	80	\|S\|S\|S d\|0~~99999\|
	81	\|SD\|SD\|SD d\|8000~~9999\|
	82
	83	Cable Wiring
	84
	85	* RS485
	86
31.1	87	[[image:image-20220822172124-1.png]]
20.1	88
	89	* RS422
	90
31.1	91	[[image:image-20220822172228-2.png]]
20.1	92
30.1	93
20.1	94	✎Note:
	95
	96	* HMI COM3 is available in PI8000 series and COM3 is in COM2(hardware PIN 7 and PIN 8) .
	97	* If PLC <= 20 points,such as LX3V-1208/LX3V-0806 PLC,PLC RS485A and RS485B mean PLC COM2 RS485+ and RS485- .PLC COM2 can support modbus. Please refer to PLC COM2 setting manual.
	98
	99	[[https:~~/~~/drive.google.com/drive/folders/13rgso7oUlatZQN_SNEcJCcN4toEdDPoP?usp=sharing>>url:https://drive.google.com/drive/folders/13rgso7oUlatZQN_SNEcJCcN4toEdDPoP?usp=sharing]]
	100
43.1	101	== LX5V serial communication ==
28.1	102
34.1	103	This example introduces the establishment of serial port communication between Wecon V-BOX and LX5V. It is introduced through three parts: PLC software configuration, HMI software configuration, and hardware wiring.
20.1	104
	105	Software configuration of PLC
	106
	107	1）PLC programming software
	108
33.1	109	[[image:image-20220822172553-1.png]]
20.1	110
	111	2）New PLC project
	112
	113	Click New Project and select the PLC model.
	114
33.1	115	[[image:image-20220822172623-2.png]]
20.1	116
	117	3）Set Serial port parameters
	118
	119	Follow the steps below to configure Serial port parameters
	120
	121	Baud rate：115200
	122
	123	Data bit：8
	124
	125	Stop bit：1
	126
	127	Parity：No verification
	128
33.1	129	[[image:image-20220822172657-3.png]]
20.1	130
	131	4）Registers list
	132
33.1	133	[[image:image-20220822172730-4.png]]
20.1	134
33.1	135	V-BOX software configuration
28.1	136
35.1	137	1）V-BOX programming software
20.1	138
35.1	139	[[image:image-20220824104124-1.png]]
20.1	140
35.1	141	2）V-NET add device
20.1	142
35.1	143	Open V-NET client software → add device. As shown in the figure below, click "+" in the order of steps, and the Add Device window will pop up, enter the access key, password and remark, to add the device.
20.1	144
35.1	145	[[image:image-20220824104909-2.png]]
20.1	146
28.1	147
20.1	148	3）Set communication port parameters
	149
	150	Click the communication configuration button on the left to find the communication protocol with LX5V. After selecting the protocol, configure the communication parameters of the COM port.
	151
	152	Baud rate：115200
	153
	154	Data bit：8
	155
	156	Stop bit：1
	157
	158	Parity：No verification
	159
	160	[[image:image-20220811104012-1.png]]
	161
28.1	162
20.1	163	hardware connection
	164
	165	1）Hardware wiring diagram
	166
	167	This example introduces WeconHMI with LX5V PLC to establish communication through serial port. The connection diagram is as follows:
	168
28.1	169
	170
20.1	171	[[image:image-20220811103005-4.png]]
	172
	173	[[image:image-20220811103227-7.png]]
	174
	175	The above are all the steps for establishing serial port communication between Wecon HMI with LX5V PLC.
	176
45.1	177	== LX5V-N Ethernet communication ==
20.1	178
	179	This example introduces the establishment of Ethernet communication between Wecon HMI and LX5V. It is introduced through three parts: PLC software configuration, HMI software configuration, and hardware wiring.
	180
	181	Software configuration of PLC
	182
	183	1）PLC programming software
	184
	185	[[image:image-20220810164710-1.png]]
	186
	187	2）New PLC project
	188
	189	Click New Project and select the PLC model.
	190
	191	[[image:image-20220811115454-1.png]]
	192
	193	3）Set Ethernet port parameters
	194
	195	Follow the steps below to configure Ethernet parameters
	196
	197	PLC IP address：192.168.39.200
	198
	199	default gateway：192.168.39.1
	200
	201	subnet mask：255.255.255.0
	202
	203	[[image:image-20220811140530-2.png]]
	204
	205	4）Registers list
	206
	207	[[image:image-20220811102219-3.png]]
	208
	209	HMI software configuration
	210
	211	1）HMI programming software
	212
	213	[[image:image-20220810171237-4.png]]
	214
	215	2）New HMI project
	216
	217	Click New Project and select the HMI model.
	218
	219	[[image:image-20220810172010-5.png]]
	220
	221	3）Set communication port parameters
	222
	223	Click the project setting button on the left to configure the IP address of the HMI machine to ensure that the HMI and PLC IP remain in a local area network.
	224
	225	HMI IP address：192.168.39.201
	226
	227	default gateway：192.168.39.1
	228
	229	subnet mask：255.255.255.0
	230
	231	[[image:image-20220811170753-2.png]]
	232
	233	Next, click Communication Settings to configure the IP of the HMI communication object.
	234
	235	[[image:image-20220811163047-1.png]]
	236
	237	hardware connection
	238
	239	1）Hardware wiring diagram
	240
	241	This example introduces WeconHMI with LX5V-N PLC to establish communication through ethernet. The connection diagram is as follows:
	242
	243	[[image:image-20220811170248-1.png]]
	244
	245	The above are all the steps for establishing ethernet communication between Wecon HMI with LX5V PLC.
	246
	247	(% style="text-align:center" %)
6.1	248	[[image:1624348978863-771.png\|\|queryString="width=812&height=494" height="487" width="800" class="img-thumbnail"]]
1.1	249
23.1	250	= Rockwell PLC =
22.1	251
37.1	252	== (% id="cke_bm_5621S" style="display:none" %) (%%)MicroLogix ==
	253
	254	MicroLogix 1000/1100/1200/1400/1500; SLC 5/03 5/04 5/05 PLC-5
	255
	256	HMI Settings
	257
	258	\|Item\|Settings\|Note
	259	\|Protocol\|Allen-Bradlley MicroLogix\|
	260	\|Connection\|RS232\|
	261	\|Baud rate\|19200\|
	262	\|Data bit\|8\|
	263	\|Parity\|None\|
	264	\|Stop bit\|1\|
	265	\|PLC station No.\|1\|
	266
	267	Address List
	268
	269	\|Type\|Device registers\|Format\|Range\|Note
	270	\|(% rowspan="5" %)Bit\|I\|I d.d\|0.0~~255.15\|
	271	\|O\|O d.d\|0.0~~255.15\|
	272	\|B\|B nnhh.dd\|0.0~~ffff.15\|nn: block number (hex)
	273	\|S\|S d.d\|0.0~~255.15\|
	274	\|N\|N nnhh.dd\|0.0~~ffff.15\|nn: block number (hex)
	275	\|(% rowspan="9" %)Word\|S\|S d\|0~~255\|
	276	\|TS\|TS nnhh\|0~~ffff\|(% rowspan="8" %)nn: block number (hex)
	277	\|TP\|TP nnhh\|0~~ffff
	278	\|CS\|CS nnhh\|0~~ffff
	279	\|CP\|CP nnhh\|0~~ffff
	280	\|N\|N nnhh\|0~~ffff
	281	\|C\|C nnhh\|0~~ffff
	282	\|T\|T nnhh\|0~~ffff
	283	\|R\|R nnhh\|0~~ffff
	284
	285	Cable Wiring
	286
	287	[[image:image-20220824110724-1.png]]
	288
	289
	290
	291	== CompactLogix ==
	292
11.1	293	(((
16.1	294	(((
38.1	295	This example introduces the establishment of Ethernet communication between Wecon V-box and CompactLogix L1769. It is introduced through three parts: PLC software configuration, V-box software configuration, and hardware wiring.
16.1	296	)))
11.1	297	)))
	298
	299	(((
15.1	300	(% class="wikigeneratedid" id="HSoftwareconfigurationofPLC" %)
	301	(((
	302	Software configuration of PLC
11.1	303	)))
	304
15.1	305	(% class="wikigeneratedid" id="HPLCprogrammingsoftware" %)
11.1	306	(((
15.1	307	1）PLC programming software
	308	)))
11.1	309
17.1	310	[[image:image-20220714162600-1.png]]
11.1	311
15.1	312	(% class="wikigeneratedid" id="HNewPLCproject" %)
11.1	313	(((
15.1	314	2）New PLC project
11.1	315	)))
	316
	317	(((
16.1	318	(((
15.1	319	Click New Project and select the PLC model.
11.1	320	)))
16.1	321	)))
11.1	322
	323	(((
17.1	324	[[image:image-20220714162617-2.png]]
11.1	325	)))
	326
	327	(((
17.1	328
16.1	329
17.1	330	[[image:image-20220714162652-4.png]]
11.1	331	)))
	332
	333	(((
15.1	334	(% class="wikigeneratedid" id="HSetEthernetparameters" %)
	335	(((
	336	3）Set Ethernet parameters
	337	)))
11.1	338
	339	(((
15.1	340	(((
16.1	341	(((
11.1	342	Follow the steps below to configure Ethernet parameters
	343	)))
15.1	344	)))
16.1	345	)))
11.1	346
	347	(((
15.1	348	(((
16.1	349	(((
11.1	350	PLC IP address：192.168.40.101
	351	)))
15.1	352	)))
16.1	353	)))
11.1	354
	355	(((
15.1	356	(((
16.1	357	(((
11.1	358	default gateway：192.168.40.1
	359	)))
15.1	360	)))
16.1	361	)))
11.1	362
	363	(((
15.1	364	(((
16.1	365	(((
11.1	366	subnet mask：255.255.255.0
	367	)))
15.1	368	)))
16.1	369	)))
11.1	370
	371	(((
17.1	372	[[image:image-20220714162713-5.png]]
11.1	373	)))
	374
	375	(((
	376
	377	)))
	378
	379	(((
15.1	380	(% class="wikigeneratedid" id="HV-boxsoftwareconfiguration" %)
	381	(((
	382	V-box software configuration
	383	)))
11.1	384
15.1	385	(% class="wikigeneratedid" id="HV-boxprogrammingsoftware" %)
	386	(((
	387	1）V-box programming software
	388	)))
11.1	389
15.1	390	(% class="wikigeneratedid" %)
	391	(((
17.1	392	[[image:image-20220714162725-6.png]]
15.1	393	)))
11.1	394
15.1	395	(% class="wikigeneratedid" id="HConfiguredevicenetwork" %)
	396	(((
	397	2）Configure device network
	398	)))
11.1	399
	400	(((
15.1	401	(((
16.1	402	(((
11.1	403	Click the Configuration Download button[[image:image-20220714115308-8.png\|\|height="22" width="15"]], It is used to configure the device network, update the device time, obtain the device machine code, check the device network, etc.
	404	)))
16.1	405
	406	(((
	407	In the example below, the IP address of V-Box is configured as 192.168.40.66, and the networking method is 4G connection
15.1	408	)))
16.1	409	)))
	410	)))
11.1	411
	412	(((
15.1	413	(((
17.1	414	[[image:image-20220714162737-7.png]]
16.1	415
	416
11.1	417	)))
	418	)))
	419	)))
	420	)))
	421
15.1	422	(% class="wikigeneratedid" id="HV-netadddevice" %)
11.1	423	(((
15.1	424	3）V-net add device
11.1	425	)))
15.1	426	)))
11.1	427
	428	(((
16.1	429	(((
21.1	430	Open VNET client software → add device. As shown in the figure below, click "+" in the order of steps, and the Add Device window will pop up, enter the device machine code/product code, device password, and device alias to add the device. [[image:image-20220714162752-8.png]]
11.1	431	)))
	432
	433
	434	)))
	435
	436	(((
15.1	437	(% class="wikigeneratedid" id="HSetcommunicationportparameters" %)
	438	(((
	439	4）Set communication port parameters
	440	)))
11.1	441
16.1	442	(((
	443	In the device list on the left, find the Vbox that communicates with the L1769, click it and select configuration,communication port configuration in the main interface to add a communication protocol.
11.1	444	)))
	445
17.1	446	[[image:image-20220714162805-9.png]]
16.1	447	)))
	448
	449	(((
11.1	450	The communication port is selected as Ethernet, the device type is selected as Allen-Bradley, the protocol is Allen-BradleyMicro850_FreeTag EthemetIP, and the IP is the internal IP address of the L1769 PLC. The port number is 44818.
16.1	451	)))
11.1	452
17.1	453	[[image:image-20220714162814-10.png]]
11.1	454
	455
16.1	456	(((
22.1	457	After adding the protocol Allen-BradleyMicro850_FreeTag, click[[image:image-20220714143838-2.png]]icon add label.[[image:image-20220714162827-11.png]]
16.1	458	)))
14.1	459
16.1	460	(% class="wikigeneratedid" id="HEngineeringproduction" %)
	461	(((
	462	5）Engineering production
	463	)))
14.1	464
16.1	465	(% class="wikigeneratedid" %)
	466	(((
	467	(((
	468	According to your own needs, use the V-NET client software to edit the required data monitoring points.
	469	)))
14.1	470
17.1	471	[[image:image-20220714162841-12.png]]
14.1	472
16.1	473
	474	(((
	475	hardware connection
	476	)))
	477	)))
	478
	479	(((
	480	1）Hardware wiring diagram
	481	)))
	482
	483	(((
	484	(((
	485	This example introduces Wecon V-box with Allen-Bradley L1769 PLC to establish communication through Ethernet. The connection diagram is as follows:
	486	)))
	487
17.1	488	[[image:image-20220714162856-13.png]]
16.1	489
	490	(((
41.1	491	The above are all the steps for establishing Ethernet communication between Wecon V-box with CompactLogix L1769 PLC.
26.1	492
	493
	494	== Allen-Bradley Ethernet DF1 ==
	495
	496	[[download link>>https://ftp.we-con.com.cn/Download/WIKI/V-BOX/Demo/%E9%80%9A%E8%AE%AF%E6%A1%88%E4%BE%8B/Allen-Bradley%20Ethernet%20DF1.zip]]
	497
	498
	499	= Siemens PLC =
16.1	500	)))
	501	)))
	502
10.1	503	== Siemens S7-1200 ==
1.1	504
	505	[[download link>>https://ftp.we-con.com.cn/Download/WIKI/V-BOX/Demo/%E9%80%9A%E8%AE%AF%E6%A1%88%E4%BE%8B/Communicate%20with%20S7-1200%20via%20Ehernet.zip]]
	506
10.1	507	== Communication with S7-200 Smart ==
1.1	508
	509	[[download link>>https://ftp.we-con.com.cn/Download/WIKI/V-BOX/Demo/%E9%80%9A%E8%AE%AF%E6%A1%88%E4%BE%8B/Communication%20with%20S7-200%20Smart.zip]]
	510
26.1	511	= Delta PLC =
	512
10.1	513	== Delta DVP Ethernet ==
1.1	514
	515	[[download link>>https://ftp.we-con.com.cn/Download/WIKI/V-BOX/Demo/%E9%80%9A%E8%AE%AF%E6%A1%88%E4%BE%8B/Delta%20DVP%20Ethernet.zip]]
	516
10.1	517	== Delta DVP Serial Protocol ==
1.1	518
	519	[[download link>>https://ftp.we-con.com.cn/Download/WIKI/V-BOX/Demo/%E9%80%9A%E8%AE%AF%E6%A1%88%E4%BE%8B/Delta%20DVP%20Ethernet.zip]]
	520
10.1	521	== Communicate with Mitsubishi FX Series ==
6.1	522
	523	[[download link>>url:https://ftp.we-con.com.cn/Download/WIKI/V-BOX/Demo/%E9%80%9A%E8%AE%AF%E6%A1%88%E4%BE%8B/Communicate%20with%20Mitsubishi%20FX%20Series.zip]]
	524
10.1	525	== Communicate with VB inverter ==
6.1	526
	527	[[download link>>url:https://ftp.we-con.com.cn/Download/WIKI/V-BOX/Demo/%E9%80%9A%E8%AE%AF%E6%A1%88%E4%BE%8B/Communicate%20with%20VB%20inverter.zip]]
	528
10.1	529	== Omron CP1 Series ==
7.1	530
8.1	531	[[download link>>https://ftp.we-con.com.cn/Download/WIKI/V-BOX/Demo/%E9%80%9A%E8%AE%AF%E6%A1%88%E4%BE%8B/Communication%20with%20ORMON%20CP1%20Series.zip]]
7.1	532
10.1	533	== Omron CJ2M ==
7.1	534
8.1	535	[[download link>>https://ftp.we-con.com.cn/Download/WIKI/V-BOX/Demo/%E9%80%9A%E8%AE%AF%E6%A1%88%E4%BE%8B/Communication%20with%20ORMON%20CJ2M.zip]]
7.1	536
1.1	537	= 2 User define protocol =
	538
19.1	539	More serial port script instruction,please refer manual:[[Lua script function>>doc:V-BOX.V-Net.Manual.04 Lua Script.01 Lua Functions.WebHome]]~-~-->[[3.Serial port operation>>url:http://docs.we-con.com.cn/wiki/vbox/view/HMI/04.Lua%20script%20%20function%20and%20operation/01.Lua%20script%20function/#H3.Serialportoperation]]
1.1	540
10.1	541	== Read the temperature sensor. ==
1.1	542
	543	the commond format is as beliow:
	544
	545	Send commond:01 03 02 00 00 03 04 73
	546
	547	Feedback commond:01 03 06 07 F7 0E 7E B7 35
	548
	549	Temperature data:07 F7,desimal = 2039,it means temperature is 20.39℃.
	550
	551	Humidity data:0E 7E,desimal = 3710, it mean humidity is 37.10%RH.
	552
	553	Script Demo:
	554
	555	~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~--
	556
	557	function com.main()
	558	~-~-dosomething
	559	openPlc()
	560	end
	561	function openPlc()
	562	if obj then
	563	~-~- If the serial port opened,then read/write data by timing
	564
	565	local wri = string.pack(">HHHH",0X0103,0X0200,0X0003,0X0473)
	566	local arr = reading(wri)
	567	~-~- if arr ~~=nil then
	568	~-~- if arr[1] ==33 and arr[2] ==v[2][2] and arr[3] ==v[2][3] then
	569	~-~- local A = arr[4]*256
	570	~-~- local B = A+arr[5]
	571	~-~- addr_setword(v[1],B)
	572	~-~- end
	573	~-~- end
	574
	575	else
	576	~-~-judge if there is a serial object, then initialize and open the serial port
	577	local configs = {
	578	name = 'COM1', ~-~-Select serial port COM1
	579	mode = 485, ~-~-Communication mode RS485
	580	baud_rate = 9600, ~-~-Baud rate 9600
	581	stop_bit = 1, ~-~-stop bit 1
	582	data_len = 8, ~-~-data length 8
	583	check_bit = 'NONE', ~-~-no parity
	584
	585	}
	586	obj,err = serial.open(configs) ~-~-Open serial port
	587	if not obj then
	588	print("serial open :failed", err) ~-~- Open serial port failed
	589	end
	590	end
	591	end
	592
	593	function reading(wri)
	594	obj:flush() ~-~- Clear serial port
	595	obj:write(wri) ~-~- Write serial port
	596	print(string.byte(wri,1,#wri))
	597	obj:flush() ~-~- Clear serial port
	598	local readed =obj:read(9,1000) ~-~- Read 9 bytes, timeout 1 second
	599	if readed and readed ~~= "" then
	600	~-~- judge that a non-empty string is read
	601	print(string.byte(readed,1,#readed))
	602	a={string.byte(readed, 1, #readed)}
	603	if nil ~~= a[4] and nil ~~= a[5] and nil ~~= a[6] and nil ~~= a[7] then
	604	a1=a[4]*256+a[5]
	605	a2=a[6]*256+a[7]
	606	addr_setword("@HDW0",a1)
	607	addr_setword("@HDW1",a2)
	608	end
	609	return {string.byte(readed, 1, #readed)}
	610	elseif readed == nil then
	611	print("serial read err:", err or "")
	612	return nil
	613	end
	614	return nil
	615	end
	616
	617	~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-

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