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　　Introduction

　　Traditional I/O is a modular subsystem that offers flexibility during installation. It’s designed to be installed in the field, near your devices. Traditional I/O is equipped with function and field wiring protection keys to ensure that the correct I/O card is always plugged into the corresponding terminal block. Modularity, protection keys, and plug-and-play capabilities make DeltaV™ Traditional I/O a smart choice for your process control system.

　　Benefits

　　Decreases capital equipment costs

　　Full system modularity: The Traditional I/O subsystem was designed with your investment in mind. All components are fully modular and may be installable under power. You add I/O interface carriers and I/O interfaces in groups of 4, 8, 16, or 32 channels as you need them. The modular design enables you to purchase the exact amount of I/O cards, 8-wide or 4-wide carriers, power/ controllers, and 2-wide carriers you need and add more DeltaV I/O as your system grows

　　Reduced system footprint: The DeltaV system’s state-of-theart form factor design of the I/O components enables you to mount the I/O interface carrier in a junction box in the field so you significantly reduce the footprint of your equipment and increase valuable control room space for other uses.

　　Decreases installation time and expense

　　Plug-and-play installation saves money: All Traditional I/O components plug into the I/O interface carrier. You can install the I/O interface carriers to manage anticipated growth and postpone the I/O interfaces until you’re ready to install your additional field devices.

　　Phased installation saves time: As soon as you mount the I/O interface carrier, you’re ready to begin installing the field devices. I/O terminal blocks plug directly onto the I/O interface carrier. There is no need to have the I/O cards installed.

　　Product Description

　　The Traditional I/O subsystem includes:

　　„ I/O interface carrier (a DIN rail surface mounted) on which all I/O relatedcomponents are installed. „ Bulk AC to 24V DC power supply for field devices. „ An I/O interface consisting of an I/O card and an I/O terminal block. „ A variety of analog and discrete I/O cards enclosed in a common form factor that easily plugs into the I/O interface carrier. „ A variety of I/O terminal blocks mounted on the I/O interface carrier that can be pre-wired before I/O card installation.

　　All I/O cards are enclosed in a common form factor that plugs into the I/O interface carrier. The housing is clearly labeled with the enclosed I/O card type. All cards have power and internal error indicators. Eight-channel cards have clearly visible channel status LEDs. All cards meet ISA G3 corrosion specifications by the careful selection of superior electronic components and the use of conformal coating. Pulse Counters are available on most DI cards. The supported maximum frequency varies from 0.1 Hz on AC signals to 75 or 120 Hz on 24V DC inputs. For higher pulse counts, up to 50 KHz, use the Multi-Function card’s high speed pulse input. The DeltaV system provides control module level time stamping for log events and alarms. For greater event resolution, the 16-channel Sequence-of-Events DI card can provide signal driven events to a resolution of +/- 0.25 ms per card, or within 1 ms per controller. Please refer to the Sequence-of-Events PDS for more information on Sequence-of-Event data collection and system options for this feature.

　　I/O Card Redundancy

　　Redundant I/O cards are available for critical applications. The same card can be used in simplex or redundant applications. When installed on a two-wide redundant terminal block, the cards are recognized as a redundant pair by the controller. The controller scans each card and determines which card is acting as the active interface. When a fault is detected, the system automatically switches to the standby I/O card. DeltaV Control modules reference simplex and redundant I/O channels identically and there is no special configuration required to take advantage of redundancy. Switchover of a redundant I/O card is completed within two scans of the I/O bus. Make-before-break contacts ensure digital field instruments remain powered and the process is undisturbed. Analog output signals are briefly driven by both cards for < 5 ms during switchover of the card. Hardware Alerts automatically report hardware integrity errors for both the primary and secondary cards. Any event that causes a switchover is also reported automatically through the system hardware alerts and is logged in the Event Chronicle.

　　Events that can cause a switchover include. „ Hardware failure within the active card. „ Communications failure between the active card and the controller. „ Detection of a fault in the field wiring. A switchover may also be initiated from the diagnostics explorer, and the health and status of both cards and their channels are available in the diagnostics explorer. The system automatically commissions a new standby card. In safe areas, failed cards can be replaced under power. In hazardous areas, appropriate installation procedures must be followed.

Warehouse discount goods:
GE IS210BPPBH2CAA MRP688936
HUCD420038R0001
XO16N1-B20 XO16N1-C3.0
ZMU-02 3AXD50000006010A
YPK112A | 3ASD573001A13 | ABB
MERSON VE4006P2
3500/91-01-01（161204-01+161216-01）
3500/91-01-01 Bently
ABB AUTOMATION DSSB 140 48980001-P BATTERY UNIT

ENTERASYS A2H124-24FX P0973BJ