Brooks Instrument SLA5810/20 - Manual (Page 26)

3-6
Section 3 Operation
Models SLA5810 and SLA5820
Installation and Operation Manual
X-PR-SLA5800-PC-eng
Part Number: 541B091AAG
July, 2010
3-5 Communications Features
3-5-1 DeviceNet Communications Features
The Brooks SLA5800 Digital Series is also available with DeviceNet TM
communication capability. DeviceNet is an open digital protocol capable of
high speeds and easy system connectivity. Brooks Instrument has several
of its devices available on this popular networking standard, and is a
member of ODVA
TM (Open DeviceNet Vendors Association), the governing
standard body for DeviceNet.
DeviceNet
is a multi-drop connection that allows a maximum of 64 devices
to be connected on the same network. Baud rate selections for DeviceNet
products are 125K, 250K and 500K and can be selected via MAC ID
switches mounted on the device.
The DeviceNet
communication link also provides access to many of the
Brooks SLA5800 Digital Series functions for “control and monitor”
operations, including:
• Accurate setpoint adjustment and flow output measurement (including
units of measure selection)
• PID Settings (controller only)
• Valve Override (controller only)
• Calibration Gas Select
• Soft Start Control (controller only)
3-5-2 F OUNDATION Fieldbus Communications Features
The Brooks SLA5800 Digital Series is supporting F OUNDATION ® Fieldbus
communication protocol. F OUNDATION ® Fieldbus is a digital network allowing
usage of existing 4-20mA cables, avoiding costly re-wiring. Fully certified
by passing ITK, this device has passed several Interoperability
requirements over a broad range of hosts. When combined with DeltaV
and using the power of PlantWeb, those devices provide intelligent alerts
allowing accurate device maintenance and service.
• Value Range check - Part of the standard function blocks
• Temperature sensor connection - Check sensor connection
• Firmware checksum - Check for Internal firmware integrity
• Non-volatile memory - Check for non-volatile memory integrity
• RAM - Check for RAM integrity
• Zero Drift/Valve Leak-by - Check for flow leak-by or sensor zero drift
• Device Overhaul due - Preventive Maintenance
• Calibration Due - Preventive Maintenance
• Valve spring life - Preventive Maintenance
• No Flow - No flow detected when setpoint requested
• Reverse Flow - Reverse flow detected
• Flow Totalizer - Informed when a user define amount of fluid has been
delivered
• Time Totalizer - Informed when a user define amount of time has
expired