INFICON BCG450 ATM to Ultra-High Vacuum Triple Gauge - Manual (Page 10)

10
tina40e1-b (2011-04)
Switching functions
BCG450
BCG450-SD, -SP
Adjustment range
→ Atmosphere switching function
2 (setpoints A and B)
1×10
-9 mbar … 100 mbar
Setpoints adjustable via potentiometers,
one floating, normally open relay contact
per setpoint (
→ 20, 41)
(Adjusting the setpoints via field bus is
described in the corresponding bus sec-
tions.)
Relay contact rating ≤60 VDC, ≤0.5 ADC
Atmosphere switching function
BCG450
Relay contact rating
BCG450-SD/SP
Relay contact rating
Atmospheric pressure threshold pro-
grammable via serial interfaces
(
→ 30)
Atmospheric pressure threshold pro-
grammable via RS232
Floating, normally open relay contact
"atmosphere pressure reached" avail-
able at the sensor cable connector
≤30 VAC/DC, ≤0.3 AC/DC
Atmospheric pressure threshold and re-
lay function "atmosphere pressure
reached" programmable via fieldbus in-
terfaces (
→ [1] or [2]).
≤60 VDC, 0.5 ADC (same as SP A/B)
Data rate
Data format
Connections (sensor cable connector)
TxD (Transmit Data)
RxD (Receive Data)
Supply common (GND)
9600 Baud
binary
8 data bits
one stop bit
no parity bit
no handshake
Pin 13
Pin 14
Pin 5
Function and communication protocol of the RS232C interface → 33
Fieldbus name DeviceNet
Standard applied → [6]
Communication protocol, data format → [1], [4]
Interface, physical CAN bus
Data rate (adjustable via "RATE"
switch) 125 kBaud
250 kBaud
500 kBaud (default)
"P" (125 kBaud, 250 kBaud, 500 kBaud
programmable via DeviceNet
(
→ [1])
Node address (MAC ID)
(Adjustable via "ADDRESS", "MSD",
"LSD" switches) 0 … 63
dec
(default = 63
dec
)
"P" (0 … 63 programmable via
DeviceNet,
→ [1])
DeviceNet connector Micro-Style, 5-pin, male
Cable Shielded, special DeviceNet cable,
5 conductors (
→ 21 and [4])
Cable length, system wiring According to DeviceNet specifications
(
→ [6], [4])
RS232C interface
DeviceNet interface
(BCG450-SD)