Modbus Basics

Chapter 4: Configuration & Operation

Zlinx 485 Manager software is used to configure Zlinx 485 hardware. Using Zlinx 485 Manager, the system can be configured to operate in Peer-to-Peer or Modbus modes (receiving Modbus commands and data from a Modbus base module). Digital inputs can be configured to operate in Discrete (on/off) or Frequency Counter modes and analog inputs and outputs are configurable for voltage or current loop operation.

Configuring Zlinx 485

Zlinx 485 modules can be configured to operate as Modbus nodes or as serial links in Peer-to-Peer mode.

Configuring Modbus Mode

When the Zlinx 485 receives a Modbus message to write to a discrete output (0xxxx addresses in its memory map), the Zlinx 485 module turns on its corresponding digital output. If a message containing holding register data is received (4xxxx addresses in its memory map), the Zlinx 485 module converts the value to a voltage or current signal on the corresponding analog output.

Figure 29. Modbus Mode devices may be PLCs, RTUs, DCSs, or other Modbus devices,

with links up to 32 nodes per Modbus network

Figure 30.

Digital and analog signals applied to the Zlinx 485 Expansion module’s input terminals are converted to Modbus messages to be sent back to the base module. Digital inputs are

Manual Documentation Number: Zlinx485m-1808 www.bb-elec.comwww.bb-europe.com

Page 29
Image 29
B&B Electronics Zlinx 485 manual Configuration & Operation, Configuring Zlinx

Zlinx 485 specifications

B&B Electronics Zlinx 485 is a reliable and efficient wireless serial communication solution designed for industrial applications. This device facilitates robust data transmission over long distances, making it an ideal choice for environments where conventional wired connections may be impractical or cost-prohibitive.

One of the main features of Zlinx 485 is its ability to operate over a wide distance, reaching up to 1 mile (1.6 km) in line-of-sight scenarios. This capability significantly enhances connectivity options for remote devices and sensors, which is particularly valuable in diverse industrial setups.

The Zlinx module is built on the 802.15.4 protocol and operates in the 900 MHz frequency band, which is known for its excellent propagation characteristics and minimal interference from other wireless devices. This technology ensures reliable communication even in challenging environments, making it suitable for applications in factories, warehouses, and outdoor settings.

Another crucial characteristic of the Zlinx 485 is its versatility. The device supports both point-to-point and point-to-multipoint configurations, allowing for flexible network designs that can accommodate a variety of communication needs. This adaptability simplifies integration into existing systems while offering the scalability necessary for future expansions.

Security is a priority, and the Zlinx 485 offers various encryption options to safeguard data transmissions. With features like frequency hopping and error detection, users can be assured of secure and reliable communication, thereby maintaining data integrity across the network.

In terms of ease of use, the Zlinx 485 is designed with user-friendly interfaces that allow for straightforward installation and configuration. The modules can be easily configured using software tools provided by B&B Electronics, enabling users to set up communication parameters quickly without extensive technical expertise.

Additionally, the Zlinx 485 is robustly constructed to withstand harsh industrial environments. Its durable design and resistance to extreme temperatures make it a dependable choice for applications in demanding settings, ensuring longevity and consistent performance over time.

Overall, the B&B Electronics Zlinx 485 stands out as a powerful wireless solution that combines long-range communication, robust security features, versatility, and ease of use, making it an excellent choice for a variety of industrial applications. Its commitment to reliability and performance positions it as a leader in wireless serial communication technology.