Oh! Thank you dFX, I needed to update variables with the bus cycle task. Now it seems to work perfectly. Thanks! =D
Hi! Thank you for the response dFx. I think i didn't explain myself very well. SFC is processing a sequence of a process that is simulated by a software called VirtualmakTCP, reading the %IW0 and writing the %QW0 that the ModbusTCPslave is exchanging with the process simulator. I'm not using any modbus blocks, just using the ModbusTCP_Slave_Device added to the project. The issue is that, depending on what I program on an FB written in SFC, the ModbusTCP device swaps the inputs from %IB0 to %IB1....
Hi! Thank you for the response dFx. I think i didn't explain myself very well. SFC is processing a sequence of a process that is simulated by a software called VirtualmakTCP, reading the %IW0 and writing the %QW0 that the ModbusTCPslave is exchaning with the process simulator. I'm not using any modbus blocks, just using the ModbusTCP_Slave_Device added to the project. The issue is that, depending on what I program on an FB written in SFC, the ModbusTCP device swaps the inputs from %IB0 to %IB1. And...
I'm using a simulation software communicated with a Control Win V3 using by ModbusTCP as a slave. I'm reading two bytes %IB0 and %IB1, and writing one byte at %QB0. All signals are read and written from a POU using SFC language. The problem comes when I create a bifurcation in the grafcet. When the simulation software modifies my %IB0 nothing happens, and if it modifies %IB1, changes are applied also to %IB0. And if I remove again the bifurcation of the SFC grafcet, it starts to work correctly again....