Ametek Dycor Dymaxion Mass Spectrometer, Руководство пользователя

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Appendix B-2 | Dycor Dymaxion Mass Spectrometer
Installation
The Opto 22 SNAP I/O system interfaces with devices connected to SNAP input
and output I/O modules. A device connected to an input module is read by the
SNAP I/O Brain. The SNAP Brain processes the information and sends it to the
host PC running the System 2000 software. In the reverse direction, the System
2000 PC sends an instruction to the SNAP Brain and the Brain processes the
request and sends it to the appropriate output module to turn a device on or off, or
to set it to a value.
Communications with a host computer is via an RS-485 serial link that connects
to the SNAP I/O Brain.
Disconnect all power from the SNAP I/O system before starting these
procedures.
Components of the SNAP I/O System
The components used in the Opto 22 SNAP I/O System consist of:
•
SNAP Brain
•
SNAP input/output modules
•
SNAP rack
•
power supply
The SNAP Brain is the core of the I/O system. Using the SNAP I/O modules,
it monitors and controls all connected I/O points and provides communication
functions.
OPTO Brain B3000-B
The B3000-B is a mistic serial brain designed as a modern drop-in replacement
for the serial B3000 brain, which is obsolete as of October 2009.
The B3000-B has the same functionality as the B3000, except that it does
not support the Optomux protocol. Customers replacing the B3000 with the
B3000-B are required to update to the Process 2000 software AMETEK part
number 88175P Process 2000.
Like the older B3000, the B3000-B is a high-performance processor used to
remotely control a mix of SNAP analog and digital I/O modules on a B-series
rack. The brain connects to an Opto 22 controller or a host computer over an
RS-485 serial link.