KROHNE UFC 500 HART - Manual (Page 31)

HARTô Smart Communications Protocol
UFC500 Command Specification Rev: 2.0 Release Date: 9 Jun 2001
© 2001 KROHNE Mefltechnik D-47058 Duisburg Page 31
8.15 Command #147 Write Flow Direction And Primary Head Constant
Writes direction of the forward flow and the primary head constant.
REQUEST DATA BYTES
#0 #1 #2 #3 #4
FLOW PRIMARY PRIMARY
DIR HEAD HEAD
VALUE VALUE
MSB LSB
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. See primary head nameplate. Range: 0.5 -14.0.
COMMAND-SPECIFIC RESPONSE CODES
0 No Command-Specific Errors
1 Undefined
2 Invalid Selection (of Flow Direction)
3 Passed Parameter too Large (Primary Constant)
4 Passed Parameter too Small (Primary Constant)
5 Too Few Data Bytes Received
6 Local Device User
7 In Write Protect Mode
8-127 Undefined