ProSoft MVI56E-MCMR User Manual

Diagnostics and Troubleshooting MVI56E-MCMR ♦ ControlLogix Platform
User Manual Modbus Communication Module with Reduced Data Block
Page 136 of 223 ProSoft Technology, Inc.
5.4 Communication Error Codes
During module configuration download, the OK and APP LEDs will cycle through
various states. If the OK LED remains RED and the APP LED remains OFF or
RED for a long period of time, look at the configuration error words in the
configuration request block. The structure of the block is shown in the following
table.
Offset
Description
Length
0
Reserved
1
1
9000
1
2
Module Configuration Errors
1
3
Port 1 Configuration Errors
1
4
Port 2 Configuration Errors
1
5 to 38
Spare
34
39
-2 or -3
1
The bits in each configuration word are shown in the following table. The module
configuration error word has the following definition:
Bit
Description
Value
0
Read block start value is greater than the database size.
0x0001
1
Read block start value is less than zero.
0x0002
2
Read block count value is less than zero.
0x0004
3
Read block count + start is greater than the database size.
0x0008
4
Write block start value is greater than the database size.
0x0010
5
Write block start value is less than zero.
0x0020
6
Write block count value is less than zero.
0x0040
7
Write block count + start is greater than the database size.
0x0080
8
0x0100
9
0x0200
10
0x0400
11
0x0800
12
0x1000
13
0x2000
14
0x4000
15
0x8000

ProSoft MVI56E-MCMR Specifications

General

Brand	ProSoft
Model	MVI56E-MCMR
Category	Control Unit
Language	English