Overview
Section 3-1
28
3-1
Overview
After you have installed and wired the CJ1W-CTL41-E Counter Unit as described
in Section 2-2
, you have to configure the Unit
by making DM-settings.
In this section you will learn how to configure the CJ1W-CTL41-E Counter Unit in
order to adjust the behaviour of the Unit according to the specific requirements of
your application (refer to section Section 1-4
Quick Start Up Reference Guide
for
an overview of the configuration items for every Counter). Also throughout this
section, the CIO-words that are relevant to operate the Unit from the PLC ladder
program are mentioned (refer to section Section 4-2-3
for
an overview). For an overview of all the DM-settings that can be made refer to sec-
tion Section 4-2-4
All the features and functions that the Counter Unit offers are (DM-) configurable.
In the Special I/O Unit DM-area which is allocated to the Counter after the Unit has
been properly installed (see Section 1-5
Operating Procedure Guidelines
), all the
available features and functions of the Unit are represented by their corresponding
DM-words. You are free to choose the sequence in which you configure the differ-
ent functions. However, it is are recommended to follow the sequence of configur-
ing the features and functions in the order as described in this section.
Note
1. Throughout this section for the DM- and CIO- addresses an offset is defined
with respect to the physical address of the first word of the block that is allo-
cated to the Counter Unit (N = Machine Number):
• m = D (Nx100), address of the first word of the block of 90 DM-
words reserved for the Unit
• n = C (Nx10), address of the first word of the block of 34 CIO-words
reserved for the Unit
• Example: m+2 indicates the DM-word located at D(Nx100) + 2.
2. Double words are indicated as for example “n+22, n+23” (double word in CIO)
or “m+57, m+58” (double word in DM). How to distinguish between the least-
and most significant words (LSW and MSW) within double words, you should
refer to section the section called
“About this Manual”
at the beginning of this
Manual.
