Technical Data; Additional Technical Data - Endress+Hauser Fieldbus Levelflex M FMP41C Operating Instructions Manual

Levelflex M FMP41C with FOUNDATION Fieldbus
Measured variable
Output signal
Signal on alarm
Linearization
Data of the FOUNDATION
Fieldbus interface
Endress + Hauser
10

Technical data

10.1

Additional technical data

10.1.1 Input
The measured variable is the distance between a reference point (see Fig. on → ä 14) and the
product surface.
Subject to the input empty distance (E, see Fig. on → ä 108), the level is calculated.
Alternatively, the level can be converted by means of linearisation (32 points) into other variables
(volume, mass).
10.1.2 Output
• FOUNDATION Fieldbus (H1):
– signal coding: Manchester Bus Powered (MBP); Manchester II
– data transmission rate: 31.25 KBit/s, voltage mode
Error information can be accessed via the following interfaces:
• Local display:
– Error symbol (→ ä 30)
– Plain text display
• Current output, signal on error can be selected (e.g. according to NAMUR recommendation NE 43).
• Digital interface
The Levelflex M linearisation function enables conversion of the measured value into any desired
length or volume units and mass or %. Linearisation tables for volume calculation in cylindrical tanks
are preprogrammed. Any other tables from up to 32 value pairs can be input manually or semi-
automatically.
The creation of a linearisation table with the FieldCare is particularly convenient.
Basic Data
Device Type
Device Revision
DD Revision
CFF Revision
ITK Version
ITK-Certification Driver-No.
Link-Master (LAS) cabable
Link Master / Basic Device selectable
Number VCRs
Number of Link-Objects in VFD
1012 (hex)
04 (hex)
02 (hex)
02 (hex)
4.61
www.endress.com / www.fieldbus.org
yes
yes; Default: Basic Devce
24
24
Technical data
85