Wiki source code of 1 Communication

Version 38.1 by Ben on 2022/08/24 11:20

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
31.1	50	== V-BOX 和维控 LX3V 串行通信 ==
	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
	101
29.1	102	== V-BOX and Wecon LX5V serial communication ==
28.1	103
34.1	104	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	105
	106	Software configuration of PLC
	107
	108	1）PLC programming software
	109
33.1	110	[[image:image-20220822172553-1.png]]
20.1	111
	112	2）New PLC project
	113
	114	Click New Project and select the PLC model.
	115
33.1	116	[[image:image-20220822172623-2.png]]
20.1	117
	118	3）Set Serial port parameters
	119
	120	Follow the steps below to configure Serial port parameters
	121
	122	Baud rate：115200
	123
	124	Data bit：8
	125
	126	Stop bit：1
	127
	128	Parity：No verification
	129
33.1	130	[[image:image-20220822172657-3.png]]
20.1	131
	132	4）Registers list
	133
33.1	134	[[image:image-20220822172730-4.png]]
20.1	135
33.1	136	V-BOX software configuration
28.1	137
35.1	138	1）V-BOX programming software
20.1	139
35.1	140	[[image:image-20220824104124-1.png]]
20.1	141
35.1	142	2）V-NET add device
20.1	143
35.1	144	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	145
35.1	146	[[image:image-20220824104909-2.png]]
20.1	147
28.1	148
20.1	149	3）Set communication port parameters
	150
	151	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.
	152
	153	Baud rate：115200
	154
	155	Data bit：8
	156
	157	Stop bit：1
	158
	159	Parity：No verification
	160
	161	[[image:image-20220811104012-1.png]]
	162
28.1	163
20.1	164	hardware connection
	165
	166	1）Hardware wiring diagram
	167
	168	This example introduces WeconHMI with LX5V PLC to establish communication through serial port. The connection diagram is as follows:
	169
28.1	170
	171
20.1	172	[[image:image-20220811103005-4.png]]
	173
	174	[[image:image-20220811103227-7.png]]
	175
	176	The above are all the steps for establishing serial port communication between Wecon HMI with LX5V PLC.
	177
32.1	178	== V-BOX and Wecon LX5V-N Ethernet communication ==
20.1	179
	180	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.
	181
	182	Software configuration of PLC
	183
	184	1）PLC programming software
	185
	186	[[image:image-20220810164710-1.png]]
	187
	188	2）New PLC project
	189
	190	Click New Project and select the PLC model.
	191
	192	[[image:image-20220811115454-1.png]]
	193
	194	3）Set Ethernet port parameters
	195
	196	Follow the steps below to configure Ethernet parameters
	197
	198	PLC IP address：192.168.39.200
	199
	200	default gateway：192.168.39.1
	201
	202	subnet mask：255.255.255.0
	203
	204	[[image:image-20220811140530-2.png]]
	205
	206	4）Registers list
	207
	208	[[image:image-20220811102219-3.png]]
	209
	210	HMI software configuration
	211
	212	1）HMI programming software
	213
	214	[[image:image-20220810171237-4.png]]
	215
	216	2）New HMI project
	217
	218	Click New Project and select the HMI model.
	219
	220	[[image:image-20220810172010-5.png]]
	221
	222	3）Set communication port parameters
	223
	224	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.
	225
	226	HMI IP address：192.168.39.201
	227
	228	default gateway：192.168.39.1
	229
	230	subnet mask：255.255.255.0
	231
	232	[[image:image-20220811170753-2.png]]
	233
	234	Next, click Communication Settings to configure the IP of the HMI communication object.
	235
	236	[[image:image-20220811163047-1.png]]
	237
	238	hardware connection
	239
	240	1）Hardware wiring diagram
	241
	242	This example introduces WeconHMI with LX5V-N PLC to establish communication through ethernet. The connection diagram is as follows:
	243
	244	[[image:image-20220811170248-1.png]]
	245
	246	The above are all the steps for establishing ethernet communication between Wecon HMI with LX5V PLC.
	247
	248	(% style="text-align:center" %)
6.1	249	[[image:1624348978863-771.png\|\|queryString="width=812&height=494" height="487" width="800" class="img-thumbnail"]]
1.1	250
23.1	251	= Rockwell PLC =
22.1	252
11.1	253
37.1	254	== (% id="cke_bm_5621S" style="display:none" %) (%%)MicroLogix ==
	255
	256	MicroLogix 1000/1100/1200/1400/1500; SLC 5/03 5/04 5/05 PLC-5
	257
	258	HMI Settings
	259
	260	\|Item\|Settings\|Note
	261	\|Protocol\|Allen-Bradlley MicroLogix\|
	262	\|Connection\|RS232\|
	263	\|Baud rate\|19200\|
	264	\|Data bit\|8\|
	265	\|Parity\|None\|
	266	\|Stop bit\|1\|
	267	\|PLC station No.\|1\|
	268
	269	Address List
	270
	271	\|Type\|Device registers\|Format\|Range\|Note
	272	\|(% rowspan="5" %)Bit\|I\|I d.d\|0.0~~255.15\|
	273	\|O\|O d.d\|0.0~~255.15\|
	274	\|B\|B nnhh.dd\|0.0~~ffff.15\|nn: block number (hex)
	275	\|S\|S d.d\|0.0~~255.15\|
	276	\|N\|N nnhh.dd\|0.0~~ffff.15\|nn: block number (hex)
	277	\|(% rowspan="9" %)Word\|S\|S d\|0~~255\|
	278	\|TS\|TS nnhh\|0~~ffff\|(% rowspan="8" %)nn: block number (hex)
	279	\|TP\|TP nnhh\|0~~ffff
	280	\|CS\|CS nnhh\|0~~ffff
	281	\|CP\|CP nnhh\|0~~ffff
	282	\|N\|N nnhh\|0~~ffff
	283	\|C\|C nnhh\|0~~ffff
	284	\|T\|T nnhh\|0~~ffff
	285	\|R\|R nnhh\|0~~ffff
	286
	287	Cable Wiring
	288
	289	[[image:image-20220824110724-1.png]]
	290
	291
	292
	293	== CompactLogix ==
	294
11.1	295	(((
16.1	296	(((
38.1	297	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	298	)))
15.1	299
	300
11.1	301	)))
	302
	303	(((
15.1	304	(% class="wikigeneratedid" id="HSoftwareconfigurationofPLC" %)
	305	(((
	306	Software configuration of PLC
11.1	307	)))
	308
15.1	309	(% class="wikigeneratedid" id="HPLCprogrammingsoftware" %)
11.1	310	(((
15.1	311	1）PLC programming software
	312	)))
11.1	313
17.1	314	[[image:image-20220714162600-1.png]]
11.1	315
15.1	316	(% class="wikigeneratedid" id="HNewPLCproject" %)
11.1	317	(((
15.1	318	2）New PLC project
11.1	319	)))
	320
	321	(((
16.1	322	(((
15.1	323	Click New Project and select the PLC model.
11.1	324	)))
16.1	325	)))
11.1	326
	327	(((
17.1	328	[[image:image-20220714162617-2.png]]
11.1	329	)))
	330
	331	(((
17.1	332
16.1	333
17.1	334	[[image:image-20220714162652-4.png]]
11.1	335	)))
	336
	337	(((
15.1	338	(% class="wikigeneratedid" id="HSetEthernetparameters" %)
	339	(((
	340	3）Set Ethernet parameters
	341	)))
11.1	342
	343	(((
15.1	344	(((
16.1	345	(((
11.1	346	Follow the steps below to configure Ethernet parameters
	347	)))
15.1	348	)))
16.1	349	)))
11.1	350
	351	(((
15.1	352	(((
16.1	353	(((
11.1	354	PLC IP address：192.168.40.101
	355	)))
15.1	356	)))
16.1	357	)))
11.1	358
	359	(((
15.1	360	(((
16.1	361	(((
11.1	362	default gateway：192.168.40.1
	363	)))
15.1	364	)))
16.1	365	)))
11.1	366
	367	(((
15.1	368	(((
16.1	369	(((
11.1	370	subnet mask：255.255.255.0
	371	)))
15.1	372	)))
16.1	373	)))
11.1	374
	375	(((
17.1	376	[[image:image-20220714162713-5.png]]
11.1	377	)))
	378
	379	(((
	380
	381	)))
	382
	383	(((
15.1	384	(% class="wikigeneratedid" id="HV-boxsoftwareconfiguration" %)
	385	(((
	386	V-box software configuration
	387	)))
11.1	388
15.1	389	(% class="wikigeneratedid" id="HV-boxprogrammingsoftware" %)
	390	(((
	391	1）V-box programming software
	392	)))
11.1	393
15.1	394	(% class="wikigeneratedid" %)
	395	(((
17.1	396	[[image:image-20220714162725-6.png]]
15.1	397	)))
11.1	398
15.1	399	(% class="wikigeneratedid" id="HConfiguredevicenetwork" %)
	400	(((
	401	2）Configure device network
	402	)))
11.1	403
	404	(((
15.1	405	(((
16.1	406	(((
11.1	407	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.
	408	)))
16.1	409
	410	(((
	411	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	412	)))
16.1	413	)))
	414	)))
11.1	415
	416	(((
15.1	417	(((
17.1	418	[[image:image-20220714162737-7.png]]
16.1	419
	420
11.1	421	)))
	422	)))
	423	)))
	424	)))
	425
15.1	426	(% class="wikigeneratedid" id="HV-netadddevice" %)
11.1	427	(((
15.1	428	3）V-net add device
11.1	429	)))
15.1	430	)))
11.1	431
	432	(((
16.1	433	(((
21.1	434	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	435	)))
	436
	437
	438	)))
	439
	440	(((
15.1	441	(% class="wikigeneratedid" id="HSetcommunicationportparameters" %)
	442	(((
	443	4）Set communication port parameters
	444	)))
11.1	445
16.1	446	(((
	447	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	448	)))
	449
17.1	450	[[image:image-20220714162805-9.png]]
16.1	451	)))
	452
	453	(((
11.1	454	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	455	)))
11.1	456
17.1	457	[[image:image-20220714162814-10.png]]
11.1	458
	459
16.1	460	(((
22.1	461	After adding the protocol Allen-BradleyMicro850_FreeTag, click[[image:image-20220714143838-2.png]]icon add label.[[image:image-20220714162827-11.png]]
16.1	462	)))
14.1	463
16.1	464	(% class="wikigeneratedid" id="HEngineeringproduction" %)
	465	(((
	466	5）Engineering production
	467	)))
14.1	468
16.1	469	(% class="wikigeneratedid" %)
	470	(((
	471	(((
	472	According to your own needs, use the V-NET client software to edit the required data monitoring points.
	473	)))
14.1	474
17.1	475	[[image:image-20220714162841-12.png]]
14.1	476
16.1	477
	478	(((
	479	hardware connection
	480	)))
	481	)))
	482
	483	(((
	484	1）Hardware wiring diagram
	485	)))
	486
	487	(((
	488	(((
	489	This example introduces Wecon V-box with Allen-Bradley L1769 PLC to establish communication through Ethernet. The connection diagram is as follows:
	490	)))
	491
17.1	492	[[image:image-20220714162856-13.png]]
16.1	493
	494	(((
	495	The above are all the steps for establishing Ethernet communication between Wecon V-box with Allen-Bradley L1769 PLC.
26.1	496
37.1	497	== ==
26.1	498
	499	== Allen-Bradley Ethernet DF1 ==
	500
	501	[[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]]
	502
	503
	504	= Siemens PLC =
16.1	505	)))
	506	)))
	507
10.1	508	== Siemens S7-1200 ==
1.1	509
	510	[[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]]
	511
10.1	512	== Communication with S7-200 Smart ==
1.1	513
	514	[[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]]
	515
26.1	516	= Delta PLC =
	517
10.1	518	== Delta DVP Ethernet ==
1.1	519
	520	[[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]]
	521
10.1	522	== Delta DVP Serial Protocol ==
1.1	523
	524	[[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]]
	525
10.1	526	== Communicate with Mitsubishi FX Series ==
6.1	527
	528	[[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]]
	529
10.1	530	== Communicate with VB inverter ==
6.1	531
	532	[[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]]
	533
10.1	534	== Omron CP1 Series ==
7.1	535
8.1	536	[[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	537
10.1	538	== Omron CJ2M ==
7.1	539
8.1	540	[[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	541
1.1	542	= 2 User define protocol =
	543
19.1	544	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	545
10.1	546	== Read the temperature sensor. ==
1.1	547
	548	the commond format is as beliow:
	549
	550	Send commond:01 03 02 00 00 03 04 73
	551
	552	Feedback commond:01 03 06 07 F7 0E 7E B7 35
	553
	554	Temperature data:07 F7,desimal = 2039,it means temperature is 20.39℃.
	555
	556	Humidity data:0E 7E,desimal = 3710, it mean humidity is 37.10%RH.
	557
	558	Script Demo:
	559
	560	~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~--
	561
	562	function com.main()
	563	~-~-dosomething
	564	openPlc()
	565	end
	566	function openPlc()
	567	if obj then
	568	~-~- If the serial port opened,then read/write data by timing
	569
	570	local wri = string.pack(">HHHH",0X0103,0X0200,0X0003,0X0473)
	571	local arr = reading(wri)
	572	~-~- if arr ~~=nil then
	573	~-~- if arr[1] ==33 and arr[2] ==v[2][2] and arr[3] ==v[2][3] then
	574	~-~- local A = arr[4]*256
	575	~-~- local B = A+arr[5]
	576	~-~- addr_setword(v[1],B)
	577	~-~- end
	578	~-~- end
	579
	580	else
	581	~-~-judge if there is a serial object, then initialize and open the serial port
	582	local configs = {
	583	name = 'COM1', ~-~-Select serial port COM1
	584	mode = 485, ~-~-Communication mode RS485
	585	baud_rate = 9600, ~-~-Baud rate 9600
	586	stop_bit = 1, ~-~-stop bit 1
	587	data_len = 8, ~-~-data length 8
	588	check_bit = 'NONE', ~-~-no parity
	589
	590	}
	591	obj,err = serial.open(configs) ~-~-Open serial port
	592	if not obj then
	593	print("serial open :failed", err) ~-~- Open serial port failed
	594	end
	595	end
	596	end
	597
	598	function reading(wri)
	599	obj:flush() ~-~- Clear serial port
	600	obj:write(wri) ~-~- Write serial port
	601	print(string.byte(wri,1,#wri))
	602	obj:flush() ~-~- Clear serial port
	603	local readed =obj:read(9,1000) ~-~- Read 9 bytes, timeout 1 second
	604	if readed and readed ~~= "" then
	605	~-~- judge that a non-empty string is read
	606	print(string.byte(readed,1,#readed))
	607	a={string.byte(readed, 1, #readed)}
	608	if nil ~~= a[4] and nil ~~= a[5] and nil ~~= a[6] and nil ~~= a[7] then
	609	a1=a[4]*256+a[5]
	610	a2=a[6]*256+a[7]
	611	addr_setword("@HDW0",a1)
	612	addr_setword("@HDW1",a2)
	613	end
	614	return {string.byte(readed, 1, #readed)}
	615	elseif readed == nil then
	616	print("serial read err:", err or "")
	617	return nil
	618	end
	619	return nil
	620	end
	621
	622	~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-

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