ProSoft Technology MVI71-MCM - Manual (Page 95)

Reference MVI71-MCM ♦ PLC Platform
Modbus Communication Module
ProSoft Technology, Inc. Page 95 of 111
December 28, 2007
5.8 Configuration Error Codes
The configuration update procedure starts when the module receives a
configuration block (Write Block ID = 9000):
Offset Description Length
0 9000 1
1 to 6 Backplane Setup 6
7 to 31 Port 1 Configuration Errors 25
32 to 56 Port 2 Configuration Errors 25
57 to 63 Spare 7
The module then responds with a Read Block (ID = -2) with any possible errors:
5.8.1 BTR
Offset Description Length
0 -2 1
1 9000 1
2 Module Configuration Errors 1
3 Port 1 Configuration Errors 1
4 Port 2 Configuration Errors 1
5 to 63 Spare 58
The bits in each configuration word are shown below. The module configuration
error word has the following definition:
Bit Description Value
0 Write block start value is greater than the database size. 0x0001
1 Write block start value is less than zero. 0x0002
2 Write block count value is less than zero. 0x0004
3 Write block count + start is greater than the database size. 0x0008
4 Read block start value is greater than the database size. 0x0010
5 Read block start value is less than zero. 0x0020
6 Read block count value is less than zero. 0x0040
7 Read 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