Promising tool
https://github.com/cisagov/parsnip

Parsnip is a program developed to assist in the parsing of protocols using the open source network security monitoring tool Zeek. Parsnip is specifically designed to be applied towards developing Industrial Control Systems (ICS) protocol parsers but can be applied to any protocol.
#Parsnip #ProtocolParser #Zeek #ICS #IndustrialControlSystems #OT #OperationalTechnology #SCADA