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3-14
EB 6495-2 EN
Design and principle of operation
RS-232/USB
(accessories)
RS-232 with electrical insulation, USB (slave)
Connection
USB: 5-pin mini-B
RS-232: RJ-12
Transmission protocol
USB: SAMSON-specific protocol (SSP)
RS-232: SSP and Modbus RTU
Data that can be trans-
mitted
Controller settings, process variables, operating
status, fault alarms
RS-485/USB
(accessories)
RS-485 with electrical insulation, USB (slave)
Connection
USB: 5-pin mini-B
RS-485: 4-pin screw terminals
Transmission protocol
USB: SAMSON-specific protocol (SSP)
RS-485: SSP and Modbus RTU
Data that can be trans-
mitted
Controller settings, process variables, operating
status, fault alarms
Transmission rate/
format
SSP: 9600 bit/s, 8 Bit, no parity bit, 1 stop bit
Modbus: 300 to 115200 bit/s, 8 bit, parity bit
adjustable, 1 (2) stop bits
Type of transmission
RS-485: Asynchronous, half duplex, four-wire or
two-wire
Number of connected
devices
RS-485: 32 (can be extended when repeater is
used)
Number of addressable
stations
Modbus: 246
Cable length
RS-485: <1200 m; max. 4800 m with repeater
RS-485 bus termination
Active, selectable
Transmission medium
RS-485: 2 or 4 cores (twisted pair cable, stranded
in pairs, with static shield)
General specifications
Supply voltage
85 to 264 V AC, 47 to 63 Hz or 24 V AC/DC (20
to 30 V), 47 to 63 Hz
Power
consumption
85 to 264 V AC
Max. 19 VA, external fuse >630 mA (slow)
20 to 30 V AC/DC
Max. 15 VA, external fuse >1.25 mA (slow)
Perm.
temperature
range
Ambient
0 to 50 °C
Storage
–20 to +70 °C
Relative humidity
Max. 95 %, non-condensing
Содержание TROVIS 6495-2
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