About the modbus tcp/ip protocol – ProSoft Technology MVI69E-MBTCP User Manual

Page 108

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Reference

MVI69E-MBTCP ♦ CompactLogix Platform

User Manual

Modbus TCP/IP Enhanced Communication Module

Page 108 of 150

ProSoft Technology, Inc.

May 20, 2015

7.1.1 General Specifications - Modbus Client/Server

Communication
Parameters

Supports Modbus MBAP and encapsulated (Server) messaging
10/100 Base-T Ethernet-compatible interface

Modbus Modes

Client driver supports up to twenty connections for active reading
and writing of data with Modbus TCP/IP compatible devices

Server driver supports connections to up to five Modbus TCP/IP
clients using Service Port 502 with standard MBAP messaging,
and up to five clients using Modbus RTU/ASCII on Service Port
2000 (and others)

Floating-Point
Data

Floating-point data movement supported, including configurable
support for Enron, Daniel

®

, and other implementations

Modbus Function
Codes Supported

1: Read Coil Status
2: Read Input Status
3: Read Holding Registers
4: Read Input Registers
5: Force (Write) Single Coil
6: Preset (Write) Single
Holding Register
8: Diagnostics (Server Only,
Responds to
Subfunction 00)

15: Force( Write) Multiple Coils
16: Preset (Write) Multiple
Holding Registers
17: Report Slave ID (Server
Only)
22: Mask Write Holding
Register (Server Only)
23: Read/Write Holding
Registers (Server Only)

7.1.2 Hardware Specifications

Specification

Description

Dimensions

Standard 1769 Single-slot module

Current Load

500 mA max @ 5 VDC
Power supply distance rating of 2 (L43 and L45
installations on first 2 slots of 1769 bus)

Operating Temp.

32° F to 140° F (0° C to 60°C)

Storage Temp.

-40° F to 185° F (-40° C to 85° C)

Relative Humidity

5% to 95% (with no condensation)

LED Indicators

Module OK Status
Backplane Activity
Ethernet Port Activity
Configuration Activity

Application/Diagnostics Port
(ETH 1)

Diagnostics over Ethernet connection RJ45 Port

Shipped with Unit

DVD-001 ProSoft Solutions DVD
RL-CBL025 Ethernet straight-though cable

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