Typical Technical Parameters Parameter Specification Model ROC312 Power Supply Typically 12/24 VDC or 24 VAC; specific models available for various voltages. Memory Non-Volatile RAM for program and data retention. Analog Inputs (AI) Typically 4 to 8 universal inputs, configurable for voltage, current (4-20 mA), or RTD/thermocouple. Analog Outputs (AO) Typically 2 to 4 outputs (4-20 mA). Digital Inputs (DI) Typically 4 to 8 inputs (dry contact or voltage sense). Digital Outputs (DO) Typically 4 to 8 relay or solid-state outputs. Communication Ports Multiple serial ports (e.g., RS-232, RS-485) for SCADA, printers, or modems. Communication Protocols Modbus RTU/ASCII, Fisher ROC Protocol, DNP3. Enclosure Rating NEMA 4X (IP66 equivalent) Ambient Temperature -30° to 70°C (-22° to 158°F) Flow Calculation Standards AGA 3 (Orifice), AGA 7 (Turbine), AGA 8 (Gas Density), NIST & API MPMS Chapters.
