ProSoft Technology MVI56E-MNETC User Manual

Reference MVI56E-MNETC/MNETCXT ♦ ControlLogix Platform
User Manual Modbus TCP/IP Client Enhanced Communication Module - Client/Server
Page 106 of 172 ProSoft Technology, Inc.
September 20, 2018
Block ID Range
Descriptions
9999
Cold-boot block
These block identification codes can be broken down into two groups:
Normal data transfer blocks
 Read and Write blocks (-1 to 50)
Special function blocks
 Initialize Output Data blocks (1000 to 1049)
 Event Command blocks (2000 to 2029)
 Client Status blocks (3000 to 3029)
 Server Status block (3100)
 Event Sequence Command blocks (4000 to 4029)
 Event Sequence Command Status blocks (4100 to 4129 and 4200)
 Command Control blocks (5001 to 5016)
 Pass-through Request blocks (9956 to 9961, 9970, and 9996)
 Module IP Address blocks (9990 and 9991)
 Reset Module Status block (9997)
 Warm-boot and Cold-boot blocks (9998 and 9999)
5.2.2 Normal Data Transfer Blocks
Normal data transfer includes the paging of user data from the module’s internal
database (registers 0 to 9999), as well as paging of status data. These data are
transferred through read (input image) and write (output image) blocks.
The following topics describe the function and structure of each block.
Read Block
These blocks of data transfer information from the module to the ControlLogix
processor.
The following table describes the structure of the input image.
Read Block from Module to Processor
Word Offset
Description
Length
0
Reserved
1
1
Write Block ID: -1 to 50
1
2 to 201
Read Data
200
202
Program Scan Counter
1
203 to 208
Block Transfer Status
6
209 to 238
Command bit data for Clients
30
239 to 240
Product Code
2
241
Product Version
1
242 to 248
Reserved
7
249
Read Block ID
1

ProSoft Technology MVI56E-MNETC Specifications

General

Brand	ProSoft Technology
Model	MVI56E-MNETC
Category	Server
Language	English