Prosoft-technology MVI46-DFCM Bedienungsanleitung PDF herunterladen (Seite 90)

MVI46-DFCM ♦ SLC Platform Reference

DF1 Communication Module

Page 90 of 103 ProSoft Technology, Inc.

October 20, 2008

Code Description

0 Control

1 RLEN

2 DLEN

3 Data file #

4 Element #

5 Rack/Grp/Slot

Code Description

0 Control

1 Error

2 RLEN

3 DLEN

5.6.4 SLC Processor Specifics

This section contains information specific to the SLC processor based family

when used with the DF1 command set. The SLC processor commands support a

file type field entered as a single character to denote the data table to interface

with in the command. The following table defines the relationship of the file types

accepted by the module and the SLC file types:

SLC File Types

File Type File Type Command Code Description

S 83 Status

B 66 Bit

T 84 Timer

C 67 Counter

R 82 Control

N 78 Integer

F 70 Floating-point

Z 90 String

A 65 ASCII

The File Type Command Code is the ASCII character code value of the File Type

letter. This is the value to enter into the "File Type" parameter of the DF1

Command configurations in the data tables in the ladder logic.

Additionally, the SLC specific functions (502, 510 and 511) support a sub-

element 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.

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Prosoft-technology MVI46-DFCM Bedienungsanleitung Seite 90