Compod Programmable Control Module

The CompodTM mounts to any FLOWMETH and Sierra Smart-Trak® Model 100, converting the instrument's internal RS-232 communications into multi- drop RS-485/MODBUS RTU. With MODBUS, multiple instruments.The Compod module can be daisy-chained over a single network. When used with a PLC or master computer, each instrument equipped with Compod becomes a node on the MODBUS network, capable of sending and receiving data and commands. Even complex process control systems can be automated with the power of Compod and FLOWMETH's and Sierra's Smart-Trak Model 100.

Users can utilize Sierra's included software or write proprietary software using open-source MODBUS protocol to configure standard functions for the Smart-Trak. Compod's two digital output channels, analog input channel and configurable pulse output channel can automate gas processes without the need for an external PLC or computer. 

With these advanced capabilities, Smart-Trak with Compod can easily be integrated into complete process control systems.

• RS-485 communication with MODBUS RTU protocol allows digital multi-drop networks 
• Available with optional LCD display 
• Internal gas flow totalizer with adjustable pulse output 
• Two digital outputs and 1 analog input can be configured by user with MODBUS or included software for a wide variety of process controls including: - Gas mixing and blending - Batch control - Gas ratio control - Pressure monitoring and control 
• Internal performance monitoring 
• Alarm Setpoints 
• Starting or resuming gas flows automatically under different conditions - Gas flow totalization 
• And many more...