C-3
Scanner
®
2000 microEFM Appendix C
Table C.1—Scanner 2000 microEFM Specications (Fieldbus Devices Only)
Foundation™ Fieldbus Fieldbus power/communications port on eldbus interface board
Fieldbus module contains 1 resource block, 1 transducer block, and 4
analog input blocks
Device is capable of being a link master and a link active scheduler
Note Standard (non-eldbus) Scanner 2000 models have two COM ports on the Scanner 2000 main board,
but on Foundation™ eldbus models, COM2 is dedicated to communication with the eldbus inter-
face board and is not available for other uses.
Installing the Scanner 2000
The following customer-supplied equipment is recommended for installating a Scanner 2000 in a eldbus
network:
• host computer
• power supply
• linking device (may be combined with the host system)
• terminators
• Type A single pair shielded twisted cable for the power connection
The Scanner 2000 has the capability to be a link master and a link active scheduler for controlling
communication on the bus.
Control System Components
In its simplest form, a Foundation™ eldbus control system has two tiers: a host network and a eld network.
The instruments that make up the eld network connect to the host level workstations via a linking device.
The eld network consists of one or more segments, with a terminator at each end. Field devices receive their
power and their ability to communicate with other devices and the host from the eldbus network. Up to 32
devices can be connected to a single network.
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