Kendrion Kuhnke Automation GmbH
1-port RS485
401
17 May 2021
Input Data (IO -> PLC, 0..160 Bytes)
Name
Size
Source
StateData
8 bytes
IO
RxData1[0..7]
8 bytes
IO
…
…
…
RxData19[0..7]
8 bytes
IO
StateData:
Name
Format
Source
TxCounterCon
Word
The gateway shows the TxCounter again to confirm the new out-
queue data.
RxCounter
Word
Incrementing the RxCounter indicates that the process image
contains new in-queue data.
RxNrOfMsg
Word
Number of bytes received by the process image. Range: 0..152.
Starting point of the data section is RxData1[0].
ResetErrorAck
Bit (1)
Acknowledges the state of the Reset Error signal.
EtherCATError
Bit (1)
If 1: Sync Manager watchdog triggered (watchdog control)
Unused 0
Bit (1)
Unused 1
Bit (1)
TxCounterMiss
Bit(1)
The gateway checks the TxCounter for steady increments. This
error indicates a skipped increment.
Best use TxCounterCon to send new data.
Unused 2
Bit (1)
COM_TxQueueOvr
Bit (1)
Overflow of the gateway's out-buffer. Too much data is being sent
or the baud rate is too low.
COM_RxQueueOvr
Bit (1)
In-buffer overflow. Data is being accepted too slowly. Either speed
up the EtherCAT task or reduce the volume of data (lower baud
rate).
Unused 3
Bit (1)
COM_CtrlErr
Bit (1)
RS485 controller error (bit error or overrun)
Unused 4..7
Bit (4)
COM_TxBusy
Bit (1)
The interface is transmitting data
Unused 8
Bit (1)
Configuration
Run CoE to configure the RS485 module. You can directly set the startup parameters.
Select the module and go to "Startparameter" (startup parameters) and "Hinzufügen" (add).
