Prosoft-technology MVI69-MCM Manual de usuario descargar pdf (Pagina 109)

MVI69-MCM ♦ CompactLogix or MicroLogix Platform Reference

Modbus Communication Module User Manual

ProSoft Technology, Inc. Page 109 of 167

March 22, 2011

Data contained in this database is paged through the input and output images by

coordination of the CompactLogix or MicroLogix ladder logic and the MVI69-

MCM module's program. Up to 242 words of data can be transferred from the

module to the processor at a time. Up to 241 words of data can be transferred

from the processor to the module. The read and write block identification codes

in each data block determine the function to be performed or the content of the

data block. The block identification codes used by the module are listed below:

Block Range Descriptions

-1 Status Block

0 Status Block

1 to 84 Read or write data

1000 Event Port 1

2000 Event Port 2

3000 to 3001 Port 1 slave polling control

3002 to 3006 Port 1 slave status

3100 to 3101 Port 2 slave polling control

3102 to 3106 Port 2 slave status

5000 to 5006 Port 1 command control

5100 to 5106 Port 2 command control

9958 Function Code 5 data formatted Pass-Thru Control Blocks

9956 and 9957 Function Code 6 and 16 (Floating-point) data formatted Pass-Thru Control

Block

9959 Function Code 15 data formatted Pass-Thru Control Block

9998 Warm-boot control block

9999 Cold-boot control block

Each image has a defined structure depending on the data content and the

function of the data transfer.

1 2 ... 104 105 106 107 108 109 110 111 112 113 114 ... 166 167

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Prosoft-technology MVI69-MCM Manual de usuario Pagina 109