Yokogawa ADMAG CA - Manual (Page 4)

IM 1E8B0-01E
7-1
7. OPERATION VIA BRAIN TERMINAL
7. OPERATION VIA BRAIN TERMINAL
Products provided with optional code / BR come equipped with a BRAIN communica-
tion function which allows them to communicate with dedicated brain terminals (BT) or
CENTUM-XL / CS. In the BRAIN - Series communications system, a +2 mA, 2.4 kHz
modulated signal is superimposed onto the 4 to 20 mA DC analog signal for data
transmission. Since the modulated wave is an AC signal, superimposing it on the analog
signal will cause no error in the DC component of the analog signal. Thus, monitoring
can be performed via communications while the ADMAG CA is online.
A BT200 can be connected to the terminals shown in Figure 7.1 on products that are not
provided with a / BR (brain communication function).
7.1 Operation Via the BT200
This section describes the operation procedures using a brain terminal. For details on the
functions of the ADMAG CA, see Chapter 6, "Function and Data Settings." And also,
see the "BT200 Instruction Manual" (IM IC0A11-01E) for more detailed information.
7.1.1 BT200 Connections
(1) Connecting BT200 to Flow Converter
-CoCA-(Communication) is displayed
during communication.
Use these terminals
when the instruction
does not have a display.
Figure 7.1 Connection of BT200 to Flow Converter
For products not provided with the /BR (BRAIN communication function), the terminals
for BRAIN communication are provided on the circuit board. Please connect BT200 to
the terminals on the circuit board directly.
These terminals are used for a communication with the BT200 only.
Thus, the communication error will occur via FieldMate when using
these terminals.
Please connect to the 4 to 20 mA DC transfer line when communicating
via FieldMate.
IMPORTANT