This new fourth-generation version of Design Pad contains a number of features that were not available in prior versions. This instruction bulletin describes the Design Pad G4® software package used to program Fairmount Automation's programmable automation controller products. 
Whenever a new feature is described in the documentation, you will find the new feature graphic (shown to the right) in the right margin of the bulletin.
Some of the new features found in Design Pad G4 include:
- Support for new controller platforms, including
- New modules in the Chameleon family of Programmable Automation Controllers (PAC) including various input/output and networking modules
- FAC-2100 Multi-Loop Process Controller
- Programmable Smart Valve
- Additional networking support, including
- EtherNet/IP
- Ethernet Multicast
- Ethernet Custom
- LonTalk
- PROFIBUS
- Modbus/TCP
- SNMP
- Ethernet Diagnostics
- Several new operators, including
- Dynamic hardware configuration operators (inputs, outputs, numeric display, push button and relay)
- Data structures (akin to those used in the C programming language) to package signals
- Menu-settable variables
- Hardware (e.g. Toggle switch, Motor Actuated Valve, etc.)
