Rievtech EXM-12DC-DA-R-HMI, User Manual

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ELC-MEMORY
ELC-Copier
RS485: This channel is the RS485 port, it can be used to monitor or display the communication status of the
below accessories:
EXM-12 Series
EXM-E-RS485
Ethernet/WIFI: This channel is the Ethernet/WIFI port, it can be used to monitor or display the
communication status of the LAN port built-in in the CPU:
EXM Series
EXM-12DC-DA-R-N
EXM-12DC-D-R-N
EXM-12DC-DAI-R-N
EXM-12DC-DA-RT-WIFI
EXM-12DC-DA-RT-GWIFI
Timeout 1—100s
Monitor type
Tx : Data from CPU to external devices.
Rx: Data from external device to CPU
Tx+Rx: Data transmission between external device and CPU.
Description of the function
In order to monitor the communication status of the RS232, RS485 and Ethernet port, we can enable such
function block, when the timeout period exceeds, such block shall output a high level trigger.
How to insert the com port status to the text message for displaying?
Put the “com port status” into program.