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MVI56E-MNETR ♦ ControlLogix Platform
Reference
Modbus TCP/IP Interface Module with Reduced Data Block
User Manual
ProSoft Technology, Inc.
Page 115 of 175
June 14, 2011
Status Read Data Block
This block is automatically copied from the module and contains status
information about the module.
Offset
Description
Length
0
Write Block ID
1
1
Program Scan Counter
1
2 to 7
Block Transfer Status
6
8 to 9
Reserved Server Status
2
10 to 11
MNET Server Status
2
12 to 13
MBAP Server Status
2
14 to 23
MNET Client Status
10
24 to 25
Product Name
2
26
Product Version
1
27 to 40
Reserved
14
41
Read Block ID (-1 or 0)
1
Client Status Data
Word Offset
Client Status
3
Total number of command list requests
4
Total number of command list responses
5
Total number of command list errors
6
Total number of requests of slave
7
Total number of responses
8
Total number of errors sent
9
Total number of errors received
10
Configuration Error Word
11
Current Error
12
Last Error
Block Request from Processor to Module
These blocks of data transfer information from the ControlLogix processor to the
module. The following table describes the structure of the output image.
Offset
Description
Length
0
Write Block ID
1
1 to 40
Write Data
40
41
Spare
1
The Write Block ID is an index value used to determine the location in the
module’s database where the data will be placed. Each transfer can move up to
40 words (block offsets 1 to 40) of data.