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ProSoft Technology 5204-DFNT-PDPMV1 User Manual

Page 73

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DFNT ♦ ProLinx Gateway

Reference

EtherNet/IP Explicit Messaging Client/Server

Protocol Manual

ProSoft Technology, Inc.

Page 73 of 124

July 24, 2013

5.2.3 Function Code #3 - Protected Bit Write (Basic Command Set)

Column

Parameter

Description

Parameter

1

Enable/Type Word

0=Disabled, 1=Continuous and 2=Conditional.

Virtual Database Address

This parameter defines the database address for the
data to be associated with the command. The address
defined represents a register address and not a bit
address. This function will update one or more words of

data as defined by the count parameter.

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

Slot Number

Processor slot number in Control/CompactLogix rack.
Use -1 for PLC5 & SLC processors.

8

Function Code = 3

Protected Bit 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 sets or resets individual bits within a limited area of the PLC data
table. This function should work on the following devices: 1774-PLC, PLC-2,
PLC-3, PLC-5 and PLC-5/250.

5.2.4 Function Code #4 - Unprotected Bit 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 for the
data to be associated with the command. The address
defined represents a register address and not a bit
address. This function will update one or more words of
data as defined by the count parameter.

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

Slot Number

Processor slot number in Control/CompactLogix rack.
Use -1 for PLC5 & SLC processors.

8

Function Code = 4

Unprotected Bit 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