Delta DVP-ES2 User Manual download pdf (Page 452)

100

101

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

3-336

H87

MOV

M1002

D1109

SET

M1136

K100

MOV

D1252

MODRW

H0500 D0 K16

Connection device

address:

Function code: K2

read multiple bits

Data address: Y0=H0500

Data st ori n g regis ter

Data length

(bit)

SET

M1316

M1320 = OFF,

ASCII mode

RST

M1320

SET

M1320

Set communication protocol as 9600,8,E,1

Retain communication setting

Set receiving timeout as 100ms

Sending request

M1320 = ON

RTU mode

RST

M1318

Processing received data

Reset M1318

M1318

Receiving completed

ASCII mode: The received data is converted to Hex value

and stored in registers starting from D0

RTU mode: The received data is stored in registers starting from D0

z ASCII mode (COM3: M1320 = OFF, COM1: M1139 = OFF):

When X0 = ON, MODRW instruction executes the function specified by Function Code 02

PLC1Ö PLC2, PLC1 sends: “01 02 0500 0010 E8”

PLC2 ÖPLC1, PLC1 receives: “01 02 02 3412 B5”

PLC1 data receiving register D0

D0 1234H

PLC converts the ASCII data in address 0500H~0515H and

stores the converted data automatically.

Analysis of the read status of PLC2 Y0~Y17: 1234H

Device Status Device Status Device Status Device Status

Y0 OFF Y1 OFF Y2 ON Y3

OFF

Y4 ON Y5 ON Y6 OFF Y7

OFF

Y10 OFF Y11 ON Y12 OFF Y13

OFF

Y14 ON Y15 OFF Y16 OFF Y17

OFF

z RTU mode (COM3: M1320 = ON, COM1: M1139 = ON):

When X0 = ON, MODRW instruction executes the function specified by Function Code 02

PLC1 Ö PLC2, PLC1 sends: “01 02 0500 0010 79 0A”

PLC2 Ö PLC1, PLC1 receives: “01 02 02 34 12 2F 75”

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Delta DVP-ES2 User Manual Page 452

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