Module AXL F RS UNI 1H configuration as Modbus RTU (RS485)

PLCnext Engineer
1

Hi All.
I am using the AXL F RS UNI 1H module in a modbus RT RS485 network, programming in LD/FBD code using MB_AXL_F_RSUNI_Master_5 and MB_RTU_FC3_7 blocks (Modbus_RTU_13 library). I am able to send the data but the MB_AXL_F_RSUNI_Master_5 block does not provide the response and the MB_RTU_FC3_7 presents a timeout error. By monitoring with an oscilloscope and sniffer, I can identify that the slave equipment is sending the response correctly. Any indication of the problem?
I’ve been trying transparent and Modbus RTU configuration mode via process data or via PDI.
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2

Hi!
By default, if you leave MB_AXL_F_RSUNI_Master.tModbus_Timeout unattached, it should be set by internal init state to 5s. On your screenshot, there is value 0s, so probably you have to explicitly set desired timeout delay with external constant or variable.
BR