Technicaldata
User’sManual 37
6.6 Communication
Type RS232 RS485 USB
Type of connection Direct Network Direct
Max. connection length 3 m 1000 m 3 m
Number of bus stations −
32
−
Terminals Screw terminals USB-mini
Insulation Protection class I, 3.3 kV
ACRMS
1 min
basic isolation
only!
Transfer mode Asynchronous
Protocol MODBUS RTU
Transfer rate 2.400 to 115.200 bit/s USB 2.0
Warning!
USB communication port is provided with only BASIC insulation and can
ONLY be used unconnected to aux. supply AND power inputs!
6.7 Electronic features
Response time
Input → communication
All calculations are averaged over an interval of between 8 to
256 periods. Preset interval is 64 periods, which is 1.28 second
at 50 Hz.
Status LED’s
PWR Red Instrument power ON
6.8 Safety features
Protection Protection class II
Pollution degree 2
Installation category CAT III; 600 V meas. Inputs Acc. to EN 61010-1
CAT III; 300 V aux. supply Acc. to EN 61010-1
Test voltages
Acc. to EN 61010-1
UAUX
I/O, COM: 3320 VACrms
UAUX↔U, I inputs: 3320 VACrms
U, I in↔I/O,COM: 3320 VACrms
U in↔I in: 3320 VACrms
EMC Directive on electromagnetic compatibility 2004/108/EC
Acc. to EN 61326-1
Enclosure material PC/ABS
Flammability Acc. to UL 94 V-0
Weight 370 g
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