Plc I/F Axis Random Device Assignment - Mitsubishi Electric M800VW Series Manual

M800V/M80V Series PLC Development Manual
2 System Configuration of H/W

2.4 PLC I/F Axis Random Device Assignment

2.4 PLC I/F Axis Random Device Assignment
PLC I/F axis random device assignment (hereinafter referred to as random device assignment) function assigns the PLC
input/output signals (CNC control and CNC status signals) of each axis to any desired axes. Using the random device
assignment parameter allows you to reduce the change in ladder when you use a ladder programmed for a different axis
configuration system.
The PLC input/output signals for 32 axes are available (8 axes per part system x 4 part systems).
For the system which has 5 or more part systems or 9 axes in the part system, the setting of "#1603 PLCdev_no" is required.
 (Example) When a ladder for the system with 5 axes in the part system is used for the said system from
which the 4th axis is deleted
When you use a ladder in the axis configuration that is different from that for which the ladder was originally programmed, the
device Nos. in the ladder need to be corrected; however, you can use the ladder for 5-axis control almost as is simply by
assigning the 5th device No. to the 4th axis.
[Setting parameter of device assignment function]
Axis number 1 2
#1603 PLCdev_no 1 2
Axis number $1 $2
1 PC01 PC09 PC17 PC25
2 PC02 PC10 PC18 PC26
3 PC03 PC11 PC19 PC27
4 PC04 PC12 PC20 PC28
5 PC05 PC13 PC21 PC29
6 PC06 PC14 PC22 PC30
7 PC07 PC15 PC23 PC31
8 PC08 PC16 PC24 PC32
[Fixed device assignment of PLC input/output signal]
(PC** indicates the device number of PLC input/output signal.)
3 4 5 6 7 8
3 5 9 10 11 12
$3 $4 Axis number
1
2
3
4
5
6
7
8
[PLC input/output signal after device assignment]
9
13
$1 $2 $3 $4
PC01 PC09
PC02 PC10
PC03 PC11
PC05 PC12
PC13
19 IB-1501614-B