Prosoft-technology MVI46-MCM Bedienungsanleitung PDF herunterladen (Seite 70)

Reference MVI46-MCM ♦ SLC Platform

User Manual Modbus Communication Module

Page 70 of 108 ProSoft Technology, Inc.

March 29, 2011

Configuration Data Transfer

When the module performs a restart operation, it will request configuration

information from the SLC processor. This data is transferred to the module in a

specially formatted write block in the M0 file. The module will poll for this

information by placing the value 9000 in word 0 of the M0 file. The ladder logic

must construct the requested block in order to configure the module. Refer to

Module Data (page 28) for a description of the data objects used with the blocks

and the ladder logic required. The format of the block for configuration is given in

the following section.

Module Configuration Data (9001)

This block sends configuration information from the processor to the module. The

data is transferred in a block with an identification code of 9001.

Configuration Block from Processor to Module

M0 Offset Description Length

0 9001 1

1 to 6 Backplane Setup 6

11 to 40 Port 1 Configuration 30

41 to 70 Port 2 Configuration 30

71 to 80 Port 1 Command # 0 Definition 10

81 to 90 Port 1 Command # 1 Definition 10

91 to 1060 Port 1 Command # 2 to # 98 980

1061 to 1070 Port 1 Command # 99 Definition 10

1071 to 1080 Port 2 Command # 0 Definition 10

1081 to 1090 Port 2 Command # 1 Definition 10

1091 to 2060 Port 2 Command # 2 to # 98 980

2061 to 2070 Port 2 Command # 99 Definition 10

If there are any errors in the configuration, the bit associated with the error will be

set in one of the two configuration error words. The error must be corrected

before the module starts operating.

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Prosoft-technology MVI46-MCM Bedienungsanleitung Seite 70