B&B Electronics SDAIBB manual Maximum and Minimum Common Mode Voltage

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Maximum and Minimum Common Mode Voltage

If the differential voltage range and desired gain are known, the maximum and minimum common mode voltage can be determined. Equation 10 is used to calculate the maximum common mode voltage knowing the gain and the differential voltage. Equation 11 is used to calculate the minimum common mode voltage. Remember that when

Input+ or Input- is connected to GND on the SDAIBB the common mode voltage changes as the differential voltage changes.

Equation 10: VCMMAX = 4.4V − VDIFF ⋅ G

2

Equation 11: VCMMIN = − 0.590V + VDIFF ⋅ G 2

Example: Find the allowable range of the common mode voltage for a input range of ±100 mV with a gain of 10.

From Equation 10: V

 

=

4.4 −

0.1⋅ 10

= 3.9V

CMMAX

 

 

 

 

2

 

 

 

 

 

 

 

From Equation 11: V

 

=

− 0.590 +

0.1⋅ 10

= − 0.09V

CMMIN

 

 

 

2

 

 

 

 

 

The common mode voltage must be between –0.09 and 3.9 V.

SDAIBB1300 Manual

13

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104

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Contents Channel Input Buffer Board Table of Contents Specifications General InformationIntroduction Size Power SupplyConnections EnvironmentConnections Power Supply ConnectionsSingle Power Supply System with 11 Channels Supported Input Voltage Connections Differential Signal with GNDOutput Voltage Connections Buffer D is not connected to any pins on the DB25 connectorConnections when the 4-position shunt is on JP10 Connections when the 4-position shunt is on JP9Models Compatible with Sdaibb Connections when the 4-position shunt is on JP11Configuration Output OffsetGain Selection Gains and Resistor Values for Standard Inputs Values for Use with the Provided GainEquation 4 Gmax = 4.94V InputRange Maximum GainEquation 2 Gmax = 24.4V − VCM Equation 3 Gmax = 2Vcm +Equation 9 G = Gain Resistor DeterminationMaximum and Minimum Common Mode Voltage Vout = in + − in − G + OutputOffset Maximum DifferentialSetup for Figure Example Board SetupGain − in − Appendix a GlossaryImportant Specs @ 25C Appendix B Error Budget CalculationsError Contributions that can be Removed With Calibration Error Contributions that Cannot be Removed with CalibrationSDAIBB3599Manual Class a Equipment

SDAIBB specifications

B&B Electronics SDAIBB is a standout product in the world of industrial data communication, specifically designed for industrial automation applications. As industries increasingly rely on robust, reliable communication systems, the SDAIBB serves as a vital component in ensuring seamless connections between various devices and networks.

One of the main features of the SDAIBB is its dual mode operation, enabling it to function as both a standard RS-232/RS-422/RS-485 serial device server and a gateway, thereby providing flexibility in communication. This dual capability supports various protocols, facilitating interoperability among a wide range of devices in diverse industrial environments.

The SDAIBB is equipped with multiple serial ports, which allows for simultaneous connections to different devices. This feature is crucial in environments where multiple machines or sensors need to communicate data back to a centralized control system. Additionally, the device supports a variety of baud rates, which enhances compatibility with different serial devices.

One notable technology incorporated into the SDAIBB is its advanced error detection and correction capabilities. This feature ensures data integrity during transmission, which is paramount in industrial settings where data loss or corruption can lead to significant operational disruptions. The device’s built-in surge protection and isolation circuits further enhance its reliability in harsh environments.

The SDAIBB also supports various networking protocols, including Modbus and TCP/IP, which simplifies integration into existing systems. The device is compatible with both Ethernet and Wi-Fi, providing versatile connectivity options for diverse industrial layouts. This connectivity aids in remote monitoring and control, offering companies improved efficiency and reduced downtime.

In terms of installation and configuration, the SDAIBB is user-friendly. It comes with a web-based management interface that allows users to configure settings and monitor performance easily. This accessibility ensures that technicians can quickly set up the device without extensive training, thus reducing deployment time.

Furthermore, the SDAIBB is robustly built to withstand harsh industrial conditions. Its compact and rugged design allows it to be installed in a variety of environments, from manufacturing floors to remote field locations.

In summary, the B&B Electronics SDAIBB is a versatile and reliable solution for industrial communication needs. Its dual mode functionality, multiple serial port support, advanced error detection, and compatibility with various protocols make it an essential tool for enhancing connectivity and data integrity in industrial applications. This device is a testament to the growing importance of effective communication technology in optimizing operational efficiency and productivity in the industry.
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