Condair LINKS Series - 3 Communication Interface Integrated Controller; Technical Data Modbus RTU

7Communication interface Integrated Controller
3 Communication interface Integrated Controller
3.1 Technical data Modbus RTU
Protocol Modbus RTU
Interface EIA-485 (RS485) (2-wire / GND)
Galvanic isolated
No (Galvanic isolation optional possible, see chapter 9)
Connection Plug-in screw terminal 3-pole:
Data + / Data - / GND
Telegram format 1 Start / 8 Data / 1 Parity / 1 Stop
Data check CRC according to Modbus RTU specication
Modbus address 1 – 247 (10)
Parity None, even, odd
Baud rate 9600, 19200, 38400, 57600, 115200
Control signal timeout 0-300s (300s)
Max. number of devices 32 (according to RS485 specication)
Supporting Modbus functions 3 Read Holding Registers
4 Read Input Registers
6 Write Single Registers
Register format 16-Bit UInt Register
32-Bit Float Register (only from software version 5.x.x.x or higher)
Max. cable lengths/ type
600 m
Balanced twisted pair with shield, 100-120 Ohm impedance
Topology Line (Daisy Chain)
Software version device 5.x.x.x or higher
bold data = default settings