2
0
1
9
-1
0
120
ICE1-*-G60L-V1D, ICE1-*-G60L-C1-V1D
Decentralized Control Function
9
Decentralized Control Function
9.1
Basic Information
Overview
The ICE1-*-G60L-
C1
-V1D variant Ethernet IO modules have a decentralized control (DCU)
function. Using this, the modules can execute user programs that have been created with a
small external tool called
LDMicro
. These user programs are created in a ladder logic and are
called "DCU programs." This means that the user can add additional control logic, which is
stored directly in the module and is independent of a higher-level control. This ranges from sim-
ple Boolean operations of the inputs and outputs through to autonomous programs. To a PLC,
the module appears as a normal slave module with 8 bit output data and 16 bit input data.
Cyclic Data and Parameters
Consuming Data (PLC to Ethernet IO Module)
Legend
•
1A
…
8A: output status channel A (pin 4) of slots X1 to X8
•
1B
…
8B: output status channel B (pin 4) of slots X1 to X8
Producing Data (Ethernet IO Module to PLC)
Legend
•
1A
…
8A: current status of channel A (pin 4) of slots X1 to X8
•
1B
…
8B: current status of channel B (pin 4) of slots X1 to X8
Data Exchange
Note
Inputs or outputs that are used by the DCU application can no longer be directly controlled by
the PLC. However, the inputs or outputs can communicate with the PLC since the
corresponding cyclic bits are read and written by the DCU program.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Byte n
4B
4A
3B
3A
2B
2A
1B
1A
Byte n +1 8B
8A
7B
7A
6B
6A
5B
5A
Table 9.1
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Byte n
4B
4A
3B
3A
2B
2A
1B
1A
Byte n +1 8B
8A
7B
7A
6B
6A
5B
5A
Table 9.2
Note
Depending on the protocol set, the module may contain additional cyclic data bytes. Details
can be found in the respective chapters on process data for the individual protocols.
Note
The following information on data exchange between Ethernet IO module and PLC only applies
to the ICE1-16DIO-G60L-C1-V1D modules.
