ProSoft Technology MVI46-DFCM - Manual (Page 82)

MVI46-DFCM ♦ SLC Platform Reference
DF1 Communication Module
Page 82 of 103 ProSoft Technology, Inc.
October 20, 2008
Column Parameter Description Parameter
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 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.
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 Function Code = 3 Protected Bit Write Function
8 Word Address Word address where to start the write operation. P1
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 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.
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 Function Code = 4 Unprotected Bit Write Function
8 Word Address Word address where to start the write operation. P1
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 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 and PLC-5.