Command Control Blocks; Event Command - ProSoft Technology MVI69-DFCM User Manual

Functional Overview
3 to n
n=60, 120, or 240 depending on what is entered in the Block Transfer Size parameter
(see the configuration file).
The module will respond with a block with the same identification code received and
indicate the number of slaves acted on with the block. The format of this response block
is displayed below:
Read Block – Enable Slaves
Offset
0
1
2
3-n
n=60, 120, or 240 depending on what is entered in the Block Transfer Size parameter
(see the configuration file).
Important: The slaves are enabled by default. Therefore, this block should only be used
after Block 3000 or 3001 to re-enable the slaves.

2.4 Command Control Blocks

Command control blocks are special blocks used to control the module or request special
data from the module. The current version of the software supports five command
control blocks: event command control, command control, transfer time, warm boot and
cold boot.

2.4.1 Event Command

Event command control blocks are used to send DF1 commands directly from the ladder
logic to one of the master ports. The format for these blocks is displayed below:
Write Block – Event Command
Offset Description
10 to n Spare
n=60, 120, or 240 depending on what is entered in the Block Transfer Size parameter
(see the configuration file).
12
Spare
Description
3001 or 3101
Write Block ID
Number of slaves processed
Spare
0 1000 or 2000
1 Internal DB Address
2 Point Count
3 Swap Code
4 Node Address
5 Function Code
6 Parameter #1
7 Parameter #2
8 Parameter #3
9 Parameter #4
Length
1
1
1
Length
1
1
1
1
1
1
1
1
1
1
ProSoft Technology, Inc.
MVI69-DFCM User Manual
June 24, 2004