Table of Contents
Advertisement
APPENDICES
MELSEC-A
APPENDIX 2. Precautions Concerning Compatibility and the Use of Existing
Programs Prepared for the AJ71C2443 Computer Link Module
The following sections describe precautions which should be taken when
using the AJ71C24-S6 computer link module. These precautions cover com-
patibility with the AJ71C2443 computer link module (hereafter called the
AJ71C24-S3), the use of existing programs prepared for the AJ71C2433, and
procedures for changing, adding, and installing modules t o the existing net-
work.
2.1
Compatibility
The AJ71C24-S6 and the AJ71C24-S3 have the same dimensions and can be
installed in the same way. They also use the same basic programs (PC CPU
programs and computer programs).
Compatibility is maintained within the functions supported by theAJ71C24-S3.
2.2
Precautions When Using Existing Programs
(1)
Communications time
The time required for communications with a PC CPU differs between the
AJ71C263 and the AJ71C2446. The User's Manual for each type of
module gives details.
(2) PC CPU model name read function (command: PC)
When reading the PC model name of the PC CPU using the PC command,
the model name codes for the A2ACPU(-Sl), A3ACPU, etc. are changed.
CPU Model Name
I
AJ71C24-53
I
AJ71 C24-S6
I
Advertisement
Table of Contents
