Delta Electronics RTU-EN01 Instrukcja Użytkownika Pobierz pdf (Strona 58)

Ethernet Communication Module DVPEN01-SL

6.13 Application of MODBUS TCP Master

Application Compiling MODBUS instruction by PLC_B, making Y0 of PLC_A flashing

Network

environment

(1) Adopt a static IP address.

(2) IP address of PLC_A: 192.168.0.4

(3) IP address of PLC_B: 192.168.0.5

(4) Update from PLC_B to PLC_A

(5) Use MODBUS instruction 050500FF00 to set “On” Y0.

(6) Use MODBUS instruction 0505000000 to set “Off” Y0.

(7) Y0 goes between On/Off once every one second.

1. See 6.1 for how to set the communication.

2. Compile the ladder diagram in the MPU and download it to PLC

B. See below for the program design. We do not

need to write any corresponding ladder diagram into PLC_A.

M1013

K100 K1

K100

K100 K1

M1SET

TOP

K100TOP

K1H4

HC0A8

K100

K100 K1

TOP

K100TOP

K100

TOP K1

HFF

K118

K117

K111

K120

K121

K122

K123

K124

= D0 K0

= D0 K1

DVP-PLC Operation Manual

1 2 ... 53 54 55 56 57 58 59 60 61 62

Brak uwag

Delta Electronics RTU-EN01 Instrukcja Użytkownika Strona 58