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KROHNE UFC 500 HART User Manual

Page 48

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HARTô Smart Communications Protocol

UFC500 Command Specification Rev: 2.0 Release Date: 9 Jun 2001

© 2001 KROHNE Mefltechnik D-47058 Duisburg

Page

48

Data Byte #6-#9

Transmitter Variable Lower Range Value, IEEE 754, in the RangeUnits. For flowrate
variables is assumed to be zero; hence this variable is ignored by transmitter and sent back as
м0о.

NOTE: For the ReverseFlow the Upper Range Value is stored in EEPROM (if accepted) but will be actually used by the
instrument only when the ReverseScaleControl (refer to Command #156) is set to zero (ìDifferentî) and the function of
any output is set to either ìForward/reverse flowî or to ì2 Dirî (refer to Command #138).

Refer also to comments for Command #35, Write Primary Variable Range Values.

COMMAND-SPECIFIC RESPONSE CODES

0

No Command-Specific Errors

1

Undefined

2

Invalid Selection (of Transmitter Variable)

3-4

Undefined

5

Too Few Data Bytes Received

6

Local Device User

7

In Write Protect Mode

8

Undefined

9

Lower Range Value too High

10

Undefined

11

Upper Range Value too High

12

Upper Range Value too Low

13-27

Undefined

28

Invalid Range Units

29-111

Undefined

112

Pulse Value Exceeded Max and was Corrected

113

Pulse Value Surpassed Min and was Corrected

114

Reverse Range Exceeded Max and was Corrected

115

Reverse Range Surpassed Min and was Corrected

116-127 Undefined