Chapter 4 Basic functions and System configuration
4 – 8
4.3.2
System configuration (4W/4W method)
Typical system configuration example that I/O assignment of master module (EH-TRMME) is “Word 4W/4W”
(“X4Y4W” in Control editor) is shown in Figure 4.12.
Figure 4.12 System configuration example-1 (I/O assignment of master: “Word 4W/4W”)
[Explanations]
1)
Master module (EH-TRMME) has 4 channels for remote I/O area (0 to 3).
2)
One channel consists from 16 bit (1 word) input area and 16 bit (1 word) output area. In the case of I/O
assignment for master module is “Word 4W/4W”, I/O number of slot that master module mounted is
assigned to each channel as shown as Figure 4.12.
3)
One master module can communicate maximum 128points data with 4 channels between slave modules.
4)
Set compression mode of slave module ON, and you can use the same number of image slots as occupied
slots. Occupied slots are mountable with only input modules, and image slots are mountable with only
output modules. We will recommend an empty slot to mount the dummy module (EH-DUM) to prevent
dust. You can mount modules as shown in Table 2.5 on slave base.
5)
Maximum 4 slave modules can be connected to one master module. (Example of Figure4.12 is two
slaves.)
6)
Slave module must be mounted right side of power supply module.
7)
Master modules are mountable
to limit of CPU ability.
8)
Master module is mountable on any slot on basic base and expansion bases.
Occupied channels of slave St.No.0
Input
Output
0
X0
～
X15
Y64
～
Y79
1
X16
～
X31
Y80
～
Y95
2
X32
～
X47
WY6
Channel
No.
Setting of master No.1
9
U
I/O
assignment
：
9
(
4W/4W
)
2
L
Number of
slaves
：
2
8
ON
3 4
6
7
2
1
5
Compression
mode
：
OFF
Final CH
：
3
Occupied channels of master No.1
Input
Output
0
X0
～
X15
Y64
～
Y79
1
X16
～
X31
Y80
～
Y95
2
X32
～
X47
WY6
3
X48
～
X63
WY7
Channel
No.
X0
～
X63 /WX0
～
WX3
Setting of slave St.No.0
0
U
Slave St.
No.
：
0
3
L
Number of
occupied
slots
：
3
8
3 4
5 6
2
1
ON
7
Compression
mode
：
ON
Final CH
：
0
Setting of slave St. No.1
1
U
Slave St.
No.
：
1
1
L
Number of
occupied
slots
：
1
8
3 4
5 6
2
1
ON
7
Compression
mode
：
ON
Final CH
：
3
Master module (EH-TRMME)
：
Mountable up to limit of CPU ability (Location is free on bases.
）
Occupied channel of slave St.No.1
Input
Output
3
X48
～
X63
WY7
Channel
No.
Y64
～
Y95 /WY4
～
WY7
Slave module (EH-TRMLE)
X
16
Y
16
空
き
X
16
X
16
X
16
Y
16
Y
16
Y
16
Occupied slots
Image slots
Occupied
slots
Slave module (EH-TRMLE)
X700
～
X763 /WX70
～
WX73
Y764
～
Y795 /WY74
～
WY77
Image
slots
