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Modbus TCP Remote I/O Communication Module RTU-EN01
DVP-PLC Operation Manual
3
1 Introduction
To ensure correct installation and operation of RTU-EN01, please read this manual carefully before using your
RTU-EN01. RTU-EN01is an Ethernet remote I/O module for remote setting through Delta’s DCISoft. RTU-EN01
supports maximum 256 digital input/output points. RTU-EN01 supports Modbus TCP protocol and can be used
for remote monitoring with graphic control software or human machine interface. RTU-EN01 can also be used as
a Modbus TCP gateway, supporting the conversion from Modbus TCP commands to Modbus ASCII/RTU. In
addition, in MDI/MDI-X auto-detect, jump wire is not needed when you choose the network cable.
1.1 Features
z Supporting smart PLC functions, counter, timer and real-time clock. Able to operate independently without
control of PLC main processing unit or programming.
z Able to auto-detect 10/100 Mbps transmission speed; MDI/MDI-X auto-detect.
z Supporting maximum 16 digital input/output modules (Max. 256 I/O points) and 8 analog input/output
modules.
z Supporting maximum 16 sets of Modbus TCP connections.
z Supporting Modbus TCP/Modbus gateway (supporting Master mode, connectable to maximum 32 devices).
z Parameters can be set up on webpage.
1.2 Specifications
Ethernet interface
Interface RJ-45 with Auto MDI/MDIX
Transmission method 802.3, 802.3u
Transmission cable Category 5e, 100m (Max)
Transmission speed 10/100 Mbps Auto-Detection
Communication protocol ICMP, IP, TCP, UDP, DHCP, NTP, Modbus TCP, HTTP
Serial communication interface (COM1)
Interface Mini Dim
Transmission method RS-232
Communication speed 19,200 bps
Communication format Stop bit: 1; Parity bit: None; Data bit: 8
Communication protocol Delta Configuration
Transmission cable DVPACAB215 / DVPACAB230 / DVPACAB2A30
Serial communication interface (COM2)
Interface 3 PIN feed-through terminal
Transmission method RS-485
Transmission distance 1,200m
Communication speed
110, 150, 300, 600, 1,200, 2,400, 4,800, 9,600, 19,200, 38,400, 57,600, 115,200
bps
Communication format Stop bit: 1, 2; Parity bit: None, Odd, Even; Data bit: 7, 8
Communication protocol
Modbus ASCII、Modbus RTU