INFICON BPG400 ATM to Ultra-High Vacuum Gauge - Manual (Page 3)

BPG400-SP (Profibus)
General Information
The BPG400-SP gauge has a fieldbus interface
that conforms to the Profibus DPV1 standard
(
→ [9]).
Via this interface, the following and further data
are exchanged in the standardized Profibus
protocol (
→ [1], [2]):
• Pressure reading
• Pressure unit (Torr, mbar, Pa)
• Degas function
• Gauge adjustment
• Status and error messages
Two adjustable switching functions are integrated in the
gauge. The corresponding relay contacts are available at the
sensor cable connector.
The basic sensor and sensor electronics of the BPG400-SP
type are the same as in the standard BPG400 (
→ [1], [2]).
Technical Data BPG400-SP
General technical data of the sensor and sensor
electronics
→ [1], [2].
Fieldbus Interface
Fieldbus name Profibus
Standard applied → [9]
Communication protocol,
data format
→ [4], [9]
Interface, physical RS485
Profibus Parameters
Data rate ≤12 MBaud
(
→ [4], [9])
Node address 00 … 7D
hex
(0 … 125
dec
)
Profibus connection D-Sub, 9 pins, female
Cable Shielded special Profibus
cable (
→ [9], [7])
Cable length, system wiring According to Profibus
specifications (
→ [9],
[7])
Supply Voltages
The power consumption of the BPG400-SP is higher
than that of the standard BPG400.
Supply voltage at sensor cable
connector, Pin 8
+24 VDC (+20 … 28 V)
Power consumption <18 W
Sensor Cable Connection
→ "Technical Data, Sensor Cable Connection" of the gauge
BPG400-SD (identical).
Dimensions
Housing and vacuum connection → [1], [2]
Weight
353-505
353-506 ≈425 g
≈685 g
Electrical Connection
Make sure the vacuum connection is properly made
(
→ [1], [2], "Vacuum Connection").
Sensor Cable Connection
n
If no sensor cable is available, make one according to
the diagram shown in the BPG400-SD section
(identical).
o
Connect the sensor cable to the gauge and secure the
sensor cable connector using the lock screws.
Profibus Cable Connection
n
If no Profibus cable is available, make one according to
the following indications:
1 5
6 9
D-Sub, 9 pins, male
soldering side
Pin 1 not connected
Pin 2 not connected
Pin 3 RxD/TxD-P
Pin 4 CNTR-P 1)
Pin 5 DGND 2)
Pin 6 VP 2)
Pin 7 not connected
Pin 8 RxD/TxD-N
Pin 9 not connected
1) Only to be connected if an optical link module is
used.
2) Only required as line termination for devices at both
ends of bus cable (
→ [9]).
o
Connect the Profibus cable to the gauge and secure
the Profibus cable connector using the lock screws.
The gauge can now be put into operation.
Operation
Caution
Caution: data transmission errors
If the gauge is operated via an RS232 interface
and the DeviceNet at the same time, data trans-
mission errors may occur.
The gauge must not be operated via an RS232
interface and the DeviceNet at the same time.
Operating Software
For operating the gauge via the Profibus network, prior in-
stallation of the gauge specific GSD file is required. This
software can be downloaded via internet (
→ [5]).
Note Address Setting
The node address (0 … 125
dec
) is set in
hexadecimal form (00 … 7D
hex
) via the
"ADDRESS", "MSD", and "LSD" switches.
The node address is polled by the firmware
when the gauge is switched on. If the
setting deviates from the stored value, the
new value is taken over into the NVRAM. If
a value >125
dec
(>7D
hex
) is entered, the
node address setting currently stored in the
device remains valid but it can now be
defined via Profibus ("Set slave Address",
→ [4]).
Adjusting the Gauge
→ "Adjustment and settings".
Adjusting the Switching Functions
→ "Adjustment and settings".
BPG400-SR (RS485)
General Information
The BPG400-SR gauge has a RS485 fieldbus
interface.
Via this interface, the following and further data
are exchanged (
→ [1], [2]):
• Pressure reading
• Pressure unit (Torr, mbar, Pa)
• Degas function
• Gauge adjustment
• Status and error messages
• Threshold values of switching functions
Two adjustable switching functions are integrated in the
gauge. The corresponding relay contacts are available at the
sensor cable connector. Additionally, the Relay contact of
switchingfunction A is also available at the interface
connector.
The basic sensor and sensor electronics of the BPG400-SR
type are the same as in the standard BPG400 (
→ [1], [2]).
Technical Data BPG400-SR
General technical data of the sensor and sensor electronics
→ [1], [2].
Fieldbus Interface
Name RS485
Communication protocol,
data format
→ [2]
RS485 parameters
Data rate 300 … 28'800 Baud
Device address 00 … 7F
hex
, (0 … 127
dec
)
RS485 connection D-Sub, 9 pins, male
Cable 1 twisted pair, shielded
(
→ [2])
Supply Voltages
The power consumption of the BPG400-SR is higher
than that of the standard BPG400.
Supply voltage at sensor cable
connector, Pin 8
+24 VDC (+20 … 28 V)
Power consumption <18 W
Sensor Cable Connection
→ "Technical Data, Sensor Cable Connection" of the gauge
BPG400-SD (identical).
Dimensions
Housing and vacuum connection → [1], [2]
Weight
353-509
353-513 ≈425 g
≈685 g
Electrical Connection
Make sure the vacuum connection is properly made
(
→ [1], [2], "Vacuum Connection").
Sensor Cable Connection
n
If no sensor cable is available, make one according to
the diagram shown in the BPG400-SD section
(identical).
o
Connect the sensor cable to the gauge and secure the
sensor cable connector using the lock screws.
RS485 Cable Connection
n
If no RS485 cable is available, make one according to
the following indications: