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akytec GmbH - Vahrenwalder Str. 269 A - 30179 Hannover - Germany Tel.: +49 (0) 511 16 59 672–0 - www.akytec.de
Table 3.4 RS485 interfaces
Characteristic
Value
RS1 (PC)
Operation mode
Slave
Protocol
Modbus RTU
RS2 (DEV)
Operation mode
Master, Slave, Slave Ext, Spy*
Protocol
Modbus RTU, Modbus ASCII, AKYTEC
Baud rate
1.2…115.2 kbit/s
NOTE
* With AKYTEC protocol only
Table 3.5 USB interface
Characteristic
Value
Type
USB 2.0
Transport layer protocol
CDC
Application layer protocol
Modbus RTU
Baud rate
79 kB/s
Cable type
USB A/B
3.2 Galvanic isolation
The device has 4 potential groups:
– 24 VDC power supply;
– Analog inputs, USB interface;
– RS1 interface;
– RS2 interface.
Galvanic isolation from each group to chassis
500 V AC / 1 min
Galvanic isolation between groups
500 V AC / 1 min
3.3 Operating conditions
The module is designed for natural convection cooling. It should be considered when choosing the
installation site.
The following environment conditions must be observed:
– clean, dry and controlled environment, low dust level;
– closed non-hazardous areas, free of corrosive or flammable gases.
