VEGA VEGALOG 571 - Manual (Page 15)

VEGALOG 571 15
Electrical separating measures
Galvanic isolation
acc. to VDE 0106, part 1
between power supply, LOGBUS-connection
and transistor outputs
- reference voltage 250 V
Potential separation between among transistor outputs
- reference voltage 50 V
- isolation resistance 0,5 kV
Indicating elements
LED in front facia green (on): operating voltage on
yellow/red: switching condition as level/
fail safe transistor for each output
red: fault signal
VEGACOM 557
Meas. data input DISBUS
(only used in conjunction with VEGAMET signal conditioning instrument)
Data transmission DISBUS (digital data transmission)
Connection line 2-wire, screening recommended
Line length max. 1000 m
Meas. data input LOGBUS
Data transmission LOGBUS (digital data transmission)
Connection line connection via BUS-plug
PC-interface
Interface standard RS 232 C
Line length max. 15 m
Transmission rate 300, 600, 1200, 2400, 4800, 9600 and
19200 baud
Transmission format 8 data bits, 1 stop bit, even parity or
no parity
Plug in the front facia D-SUB-plug connector, 9-pole, pins
Electrical separating measures
Reliable separation acc. to VDE 0106, between power supply, LOGBUS, DISBUS,
part 1 PC-connection and appropriate interface
- reference voltage 250 V
- test voltage 3 kV
Indicating elements
LED in front facia green BA: communication signal (bus activity)
red (flashing): DISBUS/LOGBUS-failure
red (permanently): failure
green on: operating voltage on
Interface data
see operating instruction VEGACOM 557
Product description