Data Latching Relay - Rievtech xLogic ELC Series User Manual

You can use the above fixed data as the response for the customize MODBUS.
So if the "Trg" input keeps high, the the output will be high also after the EXM get the above correct
response.
Note:The command format is based on the standard Modbus TCP. Please refer to the technical file
"Modbus TCP communication protocol" for detail if require.

5.5.35 Data latching relay

Fashion:
Short description
This special function saves the process variable of an analog input to memory, and returns it at the
analog output.
Connection
Input S
Input Ax
Input R
Output AQ
Parameter
Example
167
Classic:
Description
Save the Ax to memory and return it at the analog output with a
signal at input S (Set).
Input the analog signal to be amplified at input Ax. Use the
analog inputs, the block number of a function with analog output,
or the analog outputs.
Reset analog output AQ to 0 with a signal at input R (Reset).
analog Output AQ is reset if S and R are both set (reset has
priority over set).
Analog output
Value range for AQ: -32768...+32767
Value range for Start value: -32768...+32767