Prosoft-technology MVI46-DFNT Manual de usuario Pagina 114

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Reference MVI46-DFNT ♦ SLC Platform
User Manual EtherNet/IP Client/Server Communication Module
Page 114 of 177 ProSoft Technology, Inc.
October 12, 2010
4.11.1 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.
4.11.2 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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