SMC Networks EX600-ED Series - EtherCAT I;O Mapping Examples

-80-
No. DOC1045423
■EtherCAT
®
I/O Mapping example
EX600 I/O data is mapped from unit 0 in order, and when the diagnostics is valid, the diagnostic data is
mapped on top of the input data. Input/output data assigned to the SI unit on EtherCAT
®
communication is
assigned in order from the ITV module/valve on the SI unit side.
The I/O map is shown with the following unit configuration as an example.
<Example 1>
Unit 0
ITV module and valves
Not
connected
End
plate
SI unit
EX600-MEC1
[switch setting]
No diagnostics
4 × ITV module max.
64 valve outputs max.
Input: 16 bytes
Output: 16bytes
1 ITV block
ITV
module 1
2 Valve blocks
Valve
output 0
to
Valve
output 15
1 ITV block
ITV
module 2
2 Valve blocks
Valve
output 16
to
Valve
output 31
Valve
output 32
to
output 63
ITV
module 3
and
module 4
0
1
…
16
17
…
A
B
…
A
B
…
Input data
Output data
Byte 0
Unit 0
EX600-MEC1
ITV module 1
1
Byte 0
Unit 0
EX600-MEC1
ITV module 1
1
Byte 1
Byte 1
Byte 2
Byte 2
ITV module 2
1
Byte 3
Byte 3
Byte 4
ITV module 2
1
Byte 4
ITV module 3
1
Byte 5
Byte 5
Byte 6
Byte 6
ITV module 4
1
Byte 7
Byte 7
Byte 8
ITV module 3
1
Byte 8
Valve
Output 0 to 7
Byte 9
Byte 9
Output 8 to 15
Byte 10
Byte 10
Output 16 to 23
Byte 11
Byte 11
Output 24 to 31
Byte 12
ITV module 4
1
Byte 12
Output 32 to 39
Byte 13
Byte 13
Output 40 to 47
Byte 14
Byte 14
Output 48 to 55
Byte 15
Byte 15
Output 56 to 63
Total
16 bytes
Total
16 bytes
1: For details on ITV module input/output data, refer to the ITV module operation manual. (DIY-60L00-OM002)
When the “SI unit data size setting switch (ITV module)” (page 22) is set to “4 × ITV modules max.” or “2 × ITV modules max.”, the
data size of four or two ITV modules is added to the number of bytes allocated to the SI unit.
Regardless of whether there are more or fewer ITV modules actually connected, the size of the added data is the same as the size
of four or two ITV modules.