PTQ-AFC Modicon Quantum Platform Liquid and Gas Flow Computer for Hydrocarbon Products USER MANUAL
■The PTQ-AFC Gas & Oil Flow Computer module performs measurement of Hydrocarbon Gases and Liquids using currently accepted industry measurement standards. The module consists of a single-slot solution for Quantum chassis. To obtain its process inputs for calculations, the module uses the process data collected by analog and pulse I/O modules. The processor transfers this data to the AFC module, which then calculates flow rates, accumulated volumes, and accumulated mass. The results of the calculations are transferred back to the processor for use in the application ladder logic, or for transfer to a SCADA host.
■The module has two communication ports for Modbus communication allowing easy access to a remote Modbus device. The module works as a Modbus slave or master device.
■As discussed later in this manual, the internal Modbus database can be accessed by a Modbus Master device and by the processor (using the Modbus Gateway Function).
■The AFC Manager software can be used for easy meter configuration and application monitoring.
■The following section provides a sample application where input data is transferred from the transmitters to analog input cards on the Schneider Electric rack and the values are transferred from the processor to the module.
■For Pulse meter applications, the pulse count and pulse frequency values are typically transmitted through high-speed counter modules in the rack.
■The module performs the flow calculation based on the values transferred through the backplane. The calculation results can be read to the processor or polled from a remote Modbus master unit connected to one of the communication ports.
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User's Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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June 23, 2011 |
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5.2 MB |
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