Swegon TAC5
Manuals and User Guides for Swegon TAC5. We found 18 manuals for free downloads Installation manual, User's manual, Owner's manual, Installation and Maintenance Manual
Below you will find brief information for TAC5 DG, TAC5 DT, TAC5 DM, TAC5 F, SAT MODBUS. This manual provides comprehensive installation and user guidance for Swegon HVAC regulation boards and their MODBUS RTU communication interface. It details how to plug and wire the SAT MODBUS satellite circuit, defines the MODBUS RTU protocol specifications, including frame structure, function codes, data handling, and important considerations like write cycle limitations for non-volatile memory parameters.
Key Features
Utilizes MODBUS RTU protocol for robust master/slave communication.
Employs RS 485 physical layer with a 3-wire connection for industrial environments.
Supports flexible baud rates of 1200, 4800, 9600, or 19200 for versatile integration.
Manages data using 16-bit MODBUS holding registers, including support for 32-bit values.
Incorporates CRC-16 checksum for error detection and provides specific exception codes for invalid commands.
Distinguishes between EEPROM (100,000 write cycle limit) and non-volatile RAM parameters to guide write frequency.
Features easy plugging of the SAT MODBUS satellite circuit onto TAC5 regulation boards.
Configurable for both single-unit and network wiring with specified cable requirements.
Pages: 45 Swegon TAC5 Installation manual
Brand: Swegon Category: Security device components Size: 1 MB
Languages: English
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Frequently Answers and Questions
How is the SAT MODBUS satellite circuit connected to the TAC5 regulation board?
The SAT MODBUS must be plugged onto the "SAT MODBUS" plug of the TAC5 regulation board when the power is OFF.
What are the main specifications of the MODBUS RTU protocol used by TAC5 controllers?
The protocol uses MODBUS RTU (binary), a physical RS 485- asynchronous 3-wire connection, with factory default baud rate of 9600 (1200, 4800, 9600, 19200 are possible), 8 databits, and 1 stopbit.
Which MODBUS function codes are supported for communication with TAC5 controllers?
The controllers support function code 3 (reading multiple holding registers), function code 6 (writing a single holding register), and function code 16 (writing multiple holding registers).
What happens if an invalid MODBUS command is sent to the TAC5 controller?
The TAC5 Modbus protocol may respond with an exception code such as 01 ILLEGAL FUNCTION, 02 ILLEGAL DATA ADDRESS, or 03 ILLEGAL DATA VALUE.
Are there any limitations on writing parameters to the controller's memory?
Parameters stored in non-volatile EEPROM memory (marked "E1") have an endurance of 100,000 write cycles and should not be changed too often. Parameters in non-volatile RAM (marked "R") have no writing limitation.
How are 32-bit values transferred via MODBUS RTU?
32-bit values are transferred as two 16-bit registers, with the low word sent first, then the high word. The master must combine these two words into one 32-bit value.
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