Before You Start - Panasonic MEWNET-F Technical Manual

Before You Start

CPU unit
MEWNET-F can be used by the combination of the CPU unit of FP3 and the following remote I/O master
unit.
As for FP3, use the CPU unit of Ver. 2.0 or later.
The remote I/O control is not available with the CPU unit of a version older than Ver. 2.0.
CPU unit
FP2/FP2SH
FP3 Ver. 2.0 or later
FP10SH
Number of connected slave stations
A maximum of 32 slave stations can be connected to one master unit. The total number of occupied I/O
-
points of slave stations should be up to the number of I/O points that each master unit can use.
When using slave units, note that the number of units may be limited due to the restriction on number of
-
slots.
I/O to be used
The I/O to be used for the slave stations of MEWNET-F is automatically allocated according to the
-
order in which master units are installed or slave station number.
I/O numbers in the following ranges are allocated at the factory setting.
-
Master in network
First master unit
Second master unit
Third master unit
Forth master unit
More number of points can be used on MEWTNET-F by changing the factory setting. Tool software is
-
required to change the setting. For changing the setting, specify in the following ranges.
1. Up to 4096 points of I/O can be used for one master unit.
In case of the CPU unit of FP2/FP3, up to 2048 points can be used.
In case of FP3 master unit Ver. 1.4 or older, up to 1024 points can be used.
2. Numbers that excced the maximum number of controllable I/O points of CPU unit cannot be set.
- I/O can be allocated by changing the setting regardless of slave station numbers or order in which
units are installed. Tool software is required to change the setting.
Slave unit
There are differences between FP2 slave I/O unit and FP3 slave I/O unit.
-
Especially, confirm thoroughly when replacing FP3/FP10SH system.
1. FP2 slave I/O unit should be installed in the installation position for a CPU unit on the
backplane as well as FP3 slave I/O unit.
If it is installed in the installation position for an I/O unit, it may be damaged due to electric stress.
Reference: <1.2 System Configuration>
2. There are advanced units which cannot be used for the slave station system.
Reference: <1.2.3 Advanced Units Not to be Used for Slave Station System of "MEWNET-F">
Remote I/O master unit
For FP2 (AFP2720)
For FP3 (AFP3742)
For FP3 (AFP3742)
No. of points
512 points
256 points
128 points
128 points
I/O No.
640 to 95F
960 to 111F
1120 to 119F
1200 to 127F