Prosoft-technology MVI46-DFCM Manual de usuario descargar pdf (Pagina 89)

Reference MVI46-DFCM ♦ SLC Platform

DF1 Communication Module

ProSoft Technology, Inc. Page 89 of 103

October 20, 2008

Column Parameter Description Parameter

8 File Type SLC file type letter as used in file name string. Valid

values for the system are N, S, F, A, ….

9 File Number SLC file number to be associated with the command. P2

10 Element Number The parameter defines the element in the file where

write operation will start.

11 Sub-Element Number This parameter defines the sub-element to be used

with the command. Refer to the AB documentation for

a list of valid sub-element codes.

This function writes one or more words of data from a PLC data table controlling

individual bits in the table. The bit mask used for the command is 0xFFFF. This

provides direct manipulation of the data in the device with the internal data of the

module. The function requires that all data associated with the command use the

same mask.

5.6.3 PLC-5 Processor Specifics

This section contains information specific to the PLC-5 processor with relation to

the DF1 command set. The commands specific to the PLC-5 processor contain a

sub-element code field. This field selects a sub-element field in a complex data

table. For example, to obtain the current accumulated value for a counter or

timer, the sub-element field should be set to 2. The tables below show the sub-

element codes for PLC-5 complex data tables.

PLC-5 Sub-Element Codes

Timer / Counter

Code Description

0 Control

1 Preset

2 Accumulated

Control

Code Description

0 Control

1 Length

2 Position

PD*

Code Description

0 Control

2 SP

4 Kp

6 Ki

8 Kd

26 PV

*All PD values are floating point values, so they are two words long.

1 2 ... 84 85 86 87 88 89 90 91 92 93 94 ... 102 103

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