ProSoft Technology 5202-DFNT-DFCM4 - Manual (Page 62)

Reference DFCM ♦ ProLinx Gateway
Driver Manual DF1 Master/Slave
Page 62 of 88 ProSoft Technology, Inc.
October 15, 2010
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. 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 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.