ProSoft Technology MVI69L-MBTCP - Manual (Page 106)

Reference MVI69L-MBTCP ♦ CompactLogix Platform
User Manual Communication Module
Page 106 of 152 ProSoft Technology, Inc.
January 6, 2014
7.1 Product Specifications
The MVI69L-MBTCP (Modbus TCP/IP Communication Module) allows Rockwell
Automation CompactLogix I/O compatible processors to interface easily with
other Modbus TCP/IP protocol compatible devices.
The module acts as an input/output communications module between the
Modbus TCP/IP network and the CompactLogix backplane. The data transfer
from the CompactLogix processor is asynchronous from the actions on the
Modbus TCP/IP network. Databases are user-defined and stored in the module
to hold the data required by the protocol.
 Single-slot, 1769 backplane-compatible
 Ladder Logic is used for data transfer between module and processor.
Sample Add-On Instruction file included.
 Configuration data obtained from and stored in the processor.
 Supports CompactLogix processors with 1769 I/O bus capability and at least
500 mA of 5 Vdc backplane current available.
7.1.1 General Specifications - Modbus Client/Server
Specification Description
Communication
parameters Supports Modbus MBAP and encapsulated (Server) messaging
10/100 Base-T Ethernet-compatible interface
Modbus Modes Client driver supports up to ten 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 Server ID (Server
Only)
22: Mask Write Holding
Register (Server Only)
23: Read/Write Holding
Registers (Server Only)