VEGA VEGACOM 557 Modbus protocol - Manual (Page 11)

VEGACOM 557 Modbus 11
Product description
Modbus RTU-mode
Coding system 8 bits binary, hexadecimal
Number of bits 1 start bit, 8 data bits, 1 (0) parity bit,
1 stop bit
Parity NONE, ODD, EVEN
Backup CRC - 16
Modbus ASCII-mode
Coding system hexadecimal, ASCII-character
Number of bits 1 start bit, 8 (7) data bits, 1 (0) parity bit,
1 stop bit
Parity NONE, ODD, EVEN
Backup LRC
Electrical protective measures
Protection:
not mounted
IP 00
in carrier BGT 596
or BGT LOG 571
- front side completely equipped
IP 40
- upper and lower side
BGT 596 IP 00
BGT LOG 571 IP 20
- wiring side IP 00
in housing type 505
- front side
IP 40
- other sides IP 30
Protection class II (in housing type 505)
Overvoltage category II
Electrical separation measures
Reliable separation acc. to VDE 0106, part 1 between power supply, LOGBUS, DISBUS,
PC-connection and respective interface
- reference voltage
250 V
- test voltage 2 kV
CE conformity
VEGACOM 557 meets the protective regulations of EMC (89/336/EWG) and NSR
(73/23/EWG). The conformity has been judged acc. to the following standards:
EMC
Emission EN 50 081 - 2: 1993
Susceptibility EN 50 082 - 2: 1995
NSR EN 61 010 - 1: 1993