Calculation Options; Engineering Units; Supported Protocols; Pccu Local Communication Options - ABB NGC8206 User Manual

2.9.4

Calculation Options

During Stream Setup, the user may select from several calculation files. Selection
of a suitable file automatically sets up other factors such as concentration/Btu
basis and saturated gas treatment (see
refer to the PCCU Help files.
Calculation File
gost-30319-aga8
gpa-2172-96-aga8-2145-03A-fts
iso-6976-1995-15-15
iso-6976-1995-15
iso-6976-1995-20-20
iso-6976-1995-20
2.9.5

Engineering Units

User-selectable engineering units may be defined individually per measurement
stream. These include most metric system units as well as standard US units.
Access to this capability requires instantiation of the unit conversion application
and may be applied to data reporting and visual readings on the VGA screen. For
additional information, see the host software Help files.
2.9.6

Supported Protocols

The NGC hardware and software support several communication protocols:
•
•
•
•
•
•
•
•
•
•
Supported protocols operate at 1200, 2400, 4800, 9600, 19200, 38400, 57600
and 115200 baud rates.

2.10 PCCU Local Communication Options

Local communication with the NGC requires the use of PCCU32 software running
on a PC and an MMI (man machine interface) cable. Totalflow recommends using
a USB cable for high speed local communication in a remote location. RS-232
serial communication with the NGC can also be a high speed application for users
operating a PC with Windows XP Operating System or newer.
When operating the NGC in a network environment, using Ethernet is an excellent
and practical solution.
For example, the following chart (See
between the different available options for common operational tasks:
Page 2–26
Table 2–7 Calculation File Settings
Agency Document
GOST 30319
GPA 2172-1996
ISO 6976-1995
ISO 6976-1995
ISO 6976-1995
ISO 6976-1995
Totalflow Local
Totalflow Remote
Modbus Slave (ASCII)
Modbus Slave (RTU)
Modbus Host (ASCII)
Modbus Host (RTU)
Totalflow TCP
Modbus TCP Server
Modbus TCP Client
LevelMaster
Table 2–7). For additional information,
Temp1 Temp2 Comp.
20 AGA8
AGA8
15 15 ISO Sum Factor
15 None
20 20 ISO Sum Factor
20 None
Table 2–8) compares communication times
Constants
2145-03A
2101510 Rev. AG