Delta DVP-ES2/EX2/SS2/SA2/SX2/SE Program example 6 COM1RS-232 / COM3RS-485, Function Code H05

DVP - ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming

Register	Data	Descriptions
D1074 Low byte	FF H	Data content (ON = FF00H)
D1075 Low byte	00 H
D1076 Low byte	8C H	CRC CHK Low
D1077 Low byte	F6 H	CRC CHK High

Program example 6: COM1(RS-232) / COM3(RS-485), Function Code H05

1.Function Code K5 (H05): Force ON/OFF bit device.

2.PLC1 connects PLC2: (M1320 = OFF, ASCII Mode ), (M1320 = ON, RTU Mode)

3.n = 1 indicates Force ON (set FF00H) and n = 0 indicates Force OFF (set 0000H)

4.PLC COM1/COM3 will not process the received data.

5.Take the connection between PLC1 (PLC COM3) and PLC2(PLC COM1) for example, the tables below explains the status when PLC1 reads Y0~Y17 of PLC2

z If PLC1 applies COM1 for communication, the below program can be usable by changing:

1.D1109→D1036: communication protocol

2.M1136→M1138: retain communication setting

3.D1252→D1249: Set value for data receiving timeout

4.M1320→M1139: ASCII/RTU mode selection

5.M1316→M1312: sending request

6.M1318→M1314: receiving completed flag

M1002

		MOV	H87	D1109	Set communication protocol as 9600,8,E,1
		SET	M1136	Retain communication protocol
		MOV	K100	D1252	Set receiving timeout as 100ms				M1320 = ON
		RST	M1320	M1320 = OFF			SET	M1320
				ASCII mode					RTU mode
	X0
				Sending request
		SET	M1316
X0				K5	H0500	D0	K1
		MODRW	K1					Force ON status (Set FF00H)
								Reserved
								Data address : Y0 = H0500
								Function Code K5:
Receiving completed								Force ON/OFF bit device
								Connection device address: K1

M1318

Received data

ASCII mode: No processing on received data .

RTU mode: No processing on received data .

RST M1318 Reset M1318

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