280H-SBBA-TSA-G-T FOXBORO

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280H-SBBA-TSA-G-T FOXBORO Controller module In Stock

The Cable Balun module is used to maintain digital communication line balance for

HART Transmitter to FBM loops that are powered from a common external power

supply. This powering effectively connects one line of each loop together. Without the

Baluns, in each loop so powered, the common connection at the external power

supply, would cause near end crosstalk at the system end of the loop wiring cable.

Loops using FBM internal power source do not require Baluns.

The Cable Balun module contains multiple Baluns. One Balun segment is

interconnected in each externally powered loop (see Cable Balun Module). There is

one Cable Balun module for four channels.

3. For hazardous environments, install an intrinsic safety barrier such as an MTL

787S+ between the balun wiring to limit the amount of energy in the wiring.

4. A user-supplied capacitor can be installed across the external power supply(ies)

to shunt AC power.

5. The external power supply can be redundant power supplies in parallel.

6. For this transmitter connection, use twisted-pair wiring inside a shielded cable

with the shield grounded at the Foxboro DCS end.

• Supported HART Instruments:

HART instruments compliant to Version 5, 6, or 7 of the HARTspecifications may be

used

• Interface:

8 individually isolated channels

• Communication to the Device:

Point-to-point, master/slave, asynchronous, half-duplex, at 1200 baud

• Detected Error Checking:

Parity on each byte, and one CRC check byte

• Speed:

2 messages per second

• Fastest Allowed ECB Block Period:

100 msec - However, we recommend that you see the Sizing Guidelines and Excel

Workbook appropriate for your Control Processor to determine the optimal loading

for a 100 msec Block Processing Cycle (BPC)

Product details：

280H-SBBA-TSA-G-T FOXBORO Controller module

Contact information：

Contact person：Luna Chen

Email Address:：sales6@saulplc.com

WhatApp： +86 13358378970

We look forward to your inquiry and will get back to you as soon as possible.

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