ifm
Supplementary device manual Interface CANopen in the AS-i controllerE
Function
The fieldbus modules
42
5.3.14
Module 13
– fieldbus data PLC output
Data content
Up to 128 bytes freely definable data
Direction of data
Data from the controllerE to the fieldbus interface
Module settings
Value range
0…128 [bytes]
0
module is deactivated
1…128
module is activated (details → data interpretation)
Data interpretation
Module 13 "fieldbus data PLC output" contains output data from the controllerE PLC's point of
view, i.e. data transmitted by the controllerE e.g. to a higher-level PLC or a PC. These data can
be accessed via the PLC application program of the controllerE. Access in the user program is
carried out via the variables
COoutData[0]
to
COoutData[127]
.
In case of double-word representation in the host PLC the following assignment of the different
bytes.
PDO
Byte
0
1
2
3
4
5
6
7
x
out-byte
0
out-byte
1
out-byte
2
out-byte
3
out-byte
4
out-byte
5
out-byte
6
out-byte
7
x+1
out-byte
8
out-byte
9
out-byte
10
out-byte
11
out-byte
12
out-byte
13
out-byte
14
out-byte
15
…
…
x+15
out-byte
120
out-byte
121
out-byte
122
out-byte
123
out-byte
124
out-byte
125
out-byte
126
out-byte
127
Example for module 13
Task:
Process data with a total length of 50 bytes are to be transmitted by the controllerE to a higher-
level PLC. To which value must module 13 be set?
Solution:
The data length is 50 bytes.
Module 13 must be set to a length of at least 50 bytes in order to transmit all data.