KROHNE UFC 500 HART - Manual (Page 30)

HARTô Smart Communications Protocol
UFC500 Command Specification Rev: 2.0 Release Date: 9 Jun 2001
© 2001 KROHNE Mefltechnik D-47058 Duisburg Page 30
8.14 Command #146 Read Flow Direction And Primary Head Constant
Reads direction of the forward flow and the primary head constant.
REQUEST DATA BYTES
NONE
RESPONSE DATA BYTES
#0 #1 #2 #3 #4
FLOW PRIMARY PRIMARY
DIR HEAD HEAD
VALUE VALUE
MSB LSB
Data Byte #0 defines direction of the forward flow:
0 - Positive (corresponds to м+о arrow on primary head),
1 - Negative.
Data Byte #1-#4 Primary head constant GK, IEEE 754.
COMMAND-SPECIFIC RESPONSE CODES
0 No Command-Specific Errors
1-5 Undefined
6 Local Device User
7-127 Undefined