ICE1-*-G60L-V1D, ICE1-*-G60L-C1-V1D
Decentralized Control Function
2
0
1
9
-1
0
121
•
The modules provide additional cyclic data explicitly for data exchange between the PLC
and DCU program. The DCU program can accept commands and data from the PLC and
responds with execution results.
•
The width of the exchanged data is 16 bits plus 8 data words (as a signed 16-bit integer) in
each direction.
•
The data exchange bits can be written with the "YEn" bit variables in LDMicro.
•
The data exchange bits can be read with the "XEn" bit variables in LDMicro.
•
The symbols for the integer variables
“
EIn
”
and "EOn" allow the reading and writing of
data exchange words.
PROFINET
Figure 9.1
DCU data exchange area in the TIA Portal
In the PROFINET protocol, the data exchange area consists of 2 additional slots (2 and 3). Slot
2 contains the 16-bit exchange data and slot 3 the 16-byte exchange data words.
EtherNet/IP
The exchange data is made available within the cyclical Ethernet/IP data. The format of this
data can changed depending on the assembly currently selected (16DIO, 16DI, 8DI/8DI etc.).
The following cyclic data applies to the standard 16DIO modules with DCU. For further informa-
tion, please refer to the chapter "Commissioning for EtherNet/IP,
”
sub-section "Modules with
Decentralized Control Function, Bit Assignment of Process Data Extension.
”
Cyclic Producing Data
Byte
Function
0
Input data
1
Input data
2
General diagnosis
3
Sensor diagnosis
4
Reserved
5
Actuator diagnosis 1
6
Actuator diagnosis 2
7
DCU bit exchange byte 1
8
DCU bit exchange byte 2
9
DCU integer exchange 1 MSB
10
DCU integer exchange 1 LSB
11
DCU integer exchange 2 MSB
12
DCU integer exchange 2 LSB
...
...
24
DCU integer exchange 8 MSB
25
DCU integer exchange 8 LSB
Table 9.3
