tina46e1-b (2017-12) BPG402.om 37
This interface allows operation of BPG402-SD with part numbers
353-590 and
353-591
in connection with other devices that are suited for EtherCAT operation. The
physical interface and communication firmware of BPG402-SE comply with the
EtherCAT standard (→ [11], [12]).
Two adjustable switching functions are integrated in BPG402-SE. The corre-
sponding relay contacts are available at the sensor cable connector (→ 8, 20,
39).
The basic sensor and sensor electronics of all BPG402 gauges are identical.
Caution
Caution: data transmission errors
If the gauge is operated via RS232C interface and EtherCAT interface
at the same time, data transmission errors may occur.
The gauge must not be operated via RS232C interface and EtherCAT
interface at the same time.
Via this interface, the following and further data are exchanged in the standardized
EtherCAT protocol (→ [3]):
• Pressure reading
• Pressure unit (Torr, mbar, Pa)
• Degas function
• Gauge adjustment
• Status and error messages
• Status of the switching functions
As the DeviceNet protocol is highly complex, the parameters and programming of
BPG402-SD are described in detail in the separate Communication Protocol
(→ [3]).
For operating the gauge via EtherCAT, prior installation of the device specific ESI
file is required on the bus master side. This file can be downloaded from our
website.
During device initialization, the device address switches are read by the device
firmware. This device address is supported to the master as Explicit Device
Identification.
x10
2
4
0
6
8
A
E
x1
2
4
0
6
8
A
E
The explicit device address is set in hexadecimal form
(00 … FF
hex
) via the <x10> and <x1> switches.
Two LEDs on the gauge inform on the gauge status and the current EtherCAT
status. (→ [3]).
4.11 EtherCAT Interface
(BPG402-SE)
4.11.1 Description of the
Functions
4.11.2 Operating Parameters
4.11.2.1 Operating Software
4.11.2.2 Explicit Device Address
Setting
4.11.3 Status Indicators
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