Prosoft-technology MVI71-DFNT Manual de usuario descargar pdf (Pagina 116)

Reference MVI71-DFNT ♦ PLC 5

User Manual EtherNet/IP Client/Server Communication Module

Page 116 of 175 ProSoft Technology, Inc.

February 3, 2011

5.11.1 Function Code #1 - Protected Write (Basic Command Set)

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 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 Slot Number Processor slot number in Control/CompactLogix rack.

Use -1 for PLC5 & SLC processors.

8 Function Code = 1 Protected Write Function

9 Word Address Word address where to start the write operation. P1

10 to 12 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 into a limited area of the slave

device. This function should work on the following devices: 1774-PLC, PLC-2,

PLC-3, PLC-5 and PLC-5/250.

5.11.2 Function Code #2 - Unprotected Read (Basic Command Set)

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 Slot Number Processor slot number in Control/CompactLogix rack.

Use -1 for PLC5 & SLC processors.

8 Function Code = 2 Unprotected Read Function

9 Word Address Word address where to start the read operation. P1

10 to 12 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 the PLC memory. This

function should work on the following devices: 1774-PLC, PLC-2, PLC-3, PLC-5,

SLC 500, SLC 5/03, SLC 5/04 and MicroLogix 1000.

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