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| Brand | FMC Technologies | 
|---|---|
| Model | Smith Meter microFlow.net Liquid | 
| Category | Measuring Instruments | 
| Language | English | 
Explains Modbus/TCP as a standard for TCP/IP based Modbus over Ethernet/SLIP.
Discusses variations in floating-point number representation in Modbus.
Defines control levels for communication ports like Poll & Program, Host Control, XON/XOFF.
Steps for configuring the device for Modbus via serial port.
Steps for configuring Modbus/TCP communication via Ethernet or SLIP.
Describes coils to be read for routine polling to monitor critical states.
Details how to use Modbus for host control and automation, including registers and command status.
Explains how to enter and manage the device's program mode using Modbus commands.
Details Modbus registers for configuring the device's current time and date.
How to clear active alarms on the device using Modbus commands.
Reading historical transaction data from Modbus logs.
Reading historical events from the event log via Modbus.
Reading historical data from the audit log via Modbus.
Contains system runtime data as boolean values for status monitoring.
Lists various system alarms as boolean flags for alert status.
Configuration settings for communication ports, including interface types.
Meter parameters, including flow rate and density, for accurate measurement.
Product-specific parameters like flow rates and limits for configuration.
Recipe settings for additive amounts and rates per cycle.
Transaction details and timing information for logging and analysis.
Provides an introduction to Modbus communications protocols and concepts.
Lists and describes the primary Modbus functions implemented in the device.
Describes the communication model between master and slave devices in Modbus.
Explains the CRC-16 error checking mechanism for ensuring data integrity.
Shows examples of Modbus query and response message fields in hexadecimal.
Describes the general structure of responses to Modbus read queries.
Details specific Modbus functions like Read Relay Status, Force Relay, and Preset Registers.
Describes how the device handles and returns exception responses to queries.
Explains methods to read 64-bit data using Modbus with 32-bit limitations.