Prosoft-technology MVI56-DFCMR Manual de usuario descargar pdf (Pagina 95)

Reference MVI56-DFCMR ♦ ControlLogix Platform

DF1 Interface Module with Reduced Data Block

ProSoft Technology, Inc. Page 95 of 113

October 20, 2008

Function Code #151 - Word Range Read (PLC-5 Command) (ASCII Address)

Column Parameter Description Parameter

1 Enable/Type Word 0=Disabled and 1=Continuous.

2 Virtual Database Address This parameter defines the database address of the first

data point to be associated with the command.

3 Poll Interval Minimum time in tenths of a second to wait before

polling with this command.

4 Count Number of data word values to be considered by the

function.

5 Swap Type Code Swap type code for command: 0=None, 1=Swap words,

2=Swap words & bytes and 3=swap bytes in each word.

6 Node Address Address of unit to reach on the data highway.

7 Function Code = 151 Word Range Read Command.

8 File String PLC-5 address as specified as an ASCII string. For

example, N10:300.

9 to 11 Not Used These fields are not used by the command. Values

entered in these columns will be ignored.

P2 to P4

This function reads one or more words of data from a PLC data table. This

function should work on the following devices: PLC-5.

Function Code #152 - Read-Modify-Write (PLC-5 Command) (ASCII Address)

Column Parameter Description Parameter

1 Enable/Type Word 0=Disabled, 1=Continuous and 2=Conditional.

2 Virtual Database Address This parameter defines the database address for the

data to be associated with the command. The first

database register is used as the AND mask for the

command, and the second is used for the OR mask.

Values in the AND mask have the following definitions:

0=Reset and 1=Leave the Same. Values in the OR

mask have the following definitions: 0=Leave the Same

and 1=Set.

3 Poll Interval Minimum time in tenths of a second to wait before

polling with this command.

4 Count Number of data word values to be considered by the

function.

5 Swap Type Code Swap type code for command: Always zero (0).

6 Node Address Address of unit to reach on the data highway.

7 Function Code = 152 Read-Modify-Write Command.

8 File String PLC-5 address as specified as an ASCII string. For

example, N10:300.

9 to 11 Not Used These fields are not used by the command. Values

entered in these columns will be ignored.

P2 to P4

This function writes one or more words of data to a PLC data table. This function

should work on the following devices: PLC-5. The command constructed

contains an AND mask and an OR mask. Values in the AND mask have the

following definitions: 0=Reset and 1=Leave the Same. Values in the OR mask

have the following definitions: 0=Leave the Same and 1=Set. The module is

responsible for setting the mask values to correctly construct the message from

the virtual database values.

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