The redundant pair can be manually configured or
Autosensed. The redundant terminal block couples the
two cards as one redundant pair that when Autosensed,
the DeltaV system automatically recognizes the redundant
pair of cards and assigns a device signal tag (DST) to the
datasets on the primary card (Odd numbered card).
Switchover time for redundant I/O is minimal, and the
process will be undisturbed. Output channel behavior
on switch over can be configured to resend outputs on a
switchover. This can be coupled with Output Read back to
ensure the output channels are driven to the desired state
upon switchover.
An alarm on the integrity error for the primary card notifies
the operator of a switchover. The backup card is also
monitored for integrity alarms.
The system automatically commissions and downloads a
replacement standby card. In safe areas, failed cards can
be replaced under power. In hazardous areas, appropriate
installation procedures must be followed.
Other Protocols Supported
The DeltaV S-series Serial Card can support other serial
driver protocols downloaded directly into the serial card.
Custom drivers available from Emerson for the DeltaV serial
card include:
• Allen-Bradley Data Highway Plus
• Mettler Weight Scale
• Redundant Enhanced Modbus
• Sartorius Weight Scale
Call your local sales office for availability of custom drivers.
wechat/whatsapp:
+86-181-4410-0983
Email: kongjiangauto@163.com
Copyright © 2009 - 2024 Cld , All Rights Reserved K-JIANG All rights reserved