How to add an emergency reset for all latched relays

Hi there.

I am trying out a sample fbd logic mimicing a machine start stop to test iiot gateway using LOGO! 8.FS4_1 Please check it in the attachment. The application is simple - a start button that starts a machine on timer which is reset by stop machine switch and a stop machine timer is started. 

The valid and invalid job number is simulated using the counter and this value gets reset when machine a switched off. 

Instead of using real physical inputs, i am using the buttons present on logo PLC to simulate start and stop of machine.

Now i want to add an emergency flag that can reset existing relay latches used in the logic and this flag can be activated using modbus signal obtained from iiot gateway. Is there any way to do it using FBD ? 

PS - I have strong software development background but i am fairly new to PLC logic development using FBD syntax and overall electrical wiring etc so any help with this logic developemnt regard will be appreciated. This rudimentary logic is useful for testing my iiot application but i want to explore the plc side developemnt too. 

Please check the lsc file in attachment - The relay latches B008 and B010 are redundant and maybe not required. 

Now i want to add a master reset for this logic. Please suggest me a solution for same.