About HART Modem
The numerical transmission and control signals of industrial automation instruments are being upgraded
from traditional 4-20mA analog signal to industrial fieldbus with digital communication functions. HART fieldbus
has the function of digital communication and it is compatible with 420mA analog signal, which is widely used
now.
Microcyber HART Modem provides two kinds of PC interface. HM105-RS232 is a converter between HART
bus signal and RS-232 serial signal.HM105-USB is a converter between HART bus signal and USB virtual serial
signal.
Voltage-mode modem signal
Compliance with HART (FSK) Physical Layer Specification
Transformer isolation to avoid grounding effect
Low power design without external power supply
Two Choices with USB Port and Serial Port
USB HART signal modem can supply external power
The output amplitude of RS232A HART signal modem is adjustable
Reliable and Efficient CommunicationUtilizing the HART protocol at 1200 bps, this modem delivers swift and consistent serial data communication, with a response time of less than 2 ms. The integrated LED indicators provide real-time status updates for both power and data transmission, enhancing diagnostic capabilities for process automation systems.
Easy Integration and CompatibilityThe HART Modem features a plug & play design, ensuring hassle-free installation and setup. It connects via a standard 1.5 m RS232 cable with a DB9 female connector and is compatible with multiple Windows operating systems, making it versatile for various automation environments.
Durable Design for Industrial UseConstructed from durable ABS plastic with a rectangular, panel-mountable form factor, the modem operates efficiently in demanding environments. It offers short circuit and overheating protection, an IP40 rating for dust resistance, and operates reliably within a humidity range of 10-90% RH and a wide temperature spectrum.
FAQ's of HART Modem:
Q: How do I install the HART Modem for process automation applications?
A: Installation is straightforward-mount the device on a panel, connect it via the RS232 cable to your system using the DB9 female connector, and plug it into a 12-24 VDC power source. The plug & play functionality ensures the modem is recognized immediately by compatible Windows systems.
Q: What benefits does the HART protocol support provide in industrial environments?
A: The HART protocol enables secure, bi-directional communication between intelligent field instruments and control systems, facilitating process automation and diagnostic processes. It also allows for efficient data transfer at 1200 bps over distances up to 100 meters.
Q: When should the firmware of the HART Modem be upgraded?
A: Firmware upgrades are recommended when new versions are released by the manufacturer, as these may provide performance improvements, new features, or enhanced compatibility. Instructions for safe installation are included in the user manual.
Q: Where can the HART Modem be utilized effectively?
A: This modem is designed for process automation environments, such as manufacturing facilities and industrial plants. It endures temperatures from 0C to +50C in operation, and up to +80C in storage, fitting various installation requirements.
Q: What is the process for troubleshooting communication issues with this modem?
A: First, verify power and communication status using the built-in LED indicators. Ensure the RS232 cable and DB9 connector are securely connected, and check that the modem is within its rated voltage (12-24 VDC) and environmental limits. Refer to the user manual for further diagnostics.
Q: How does the HART Modem ensure safety and device longevity?
A: The modem features 1500 V isolation voltage, short circuit protection, and overheating protection, safeguarding connected devices and users in industrial and automation setups. This ensures operational safety and prolongs equipment lifespan.
Q: What are the usage advantages of the HART Modem's design and materials?
A: ABS plastic and polycarbonate insulation give the modem mechanical strength and electrical safety. The lightweight, compact, and matte-finished design simplifies handling and installation, while offering high efficiency (97%) and low energy consumption for cost-effective operation.