ProSoft Technology MVI69E-MBTCP - About the Modbus TCP;IP Protocol

Reference MVI69E-MBTCP ♦ CompactLogix Platform
User Manual Modbus TCP/IP Enhanced Communication Module
Page 108 of 150 ProSoft Technology, Inc.
June 28, 2017
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
RL-CBL025 Ethernet straight-though cable