IC-Module for EtherNet/IP
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Register 0x0f03, 0x0f07,
0x0f0b, ..., 0x0f3f
Bit 0-3: Source bit position
Bit 4-7: Target bit position
Register 0x0f04, 0x0f08,
0x0f0c,..., 0x0f40
Bit 0-14: Number of bits to be copied.
7.4 Memory of the Communication Channels
The following memory registers contain the input and output data of
the communication channels. Cyclical process data is written there or
read from there.
The Data Broker distributes this data cyclically according to the
Mapping entries. At the same time, the input data of the producers is
assigned to the output data of the consumers.
The data can be read from the input registers at any time via the
Modbus protocol. It is only possible to write to input registers via the
respective communication channels (only in the case of SDI is this
the Modbus communication itself, of course). The initial value in the
input registers is 0 until a register is written with process data.
Output registers that are not written by the Data Broker also contain
the initial value 0 regardless of the setting for the drop-off value in the
event of validity periods of the source data being exceeded. Output
registers can solely be written by the Data Broker. Read access is
not possible via Modbus, however.
NOTICE! The inputs and outputs are described here from the
viewpoint of the data broker. The input data is transferred to the
module from outside, via SDI, SSC, or the fieldbus. There is a
particular risk of confusion for the fieldbus. For the fieldbus, the
data sent from the module to the master are input data. For the
module, the same data are output data.
0x1001 Input SSC
Modbus Register
0x1001-0x1080
Coil Address
0x0001 – 0x0800
Value Range
0x0000 - 0xffff
Initial value
0x00
Number of bytes available
256
Permanently stored
No
Access
Read Only
Memory Register
