Yokogawa 414 Batch Controller - Manual (Page 10)

8 Operation
3. OPERATION
The Models 414D and 414B Batch Controllers use a low power CMOS
microprocessor to perform all control functions and calculations.
Both instruments are fully programmable with all operating parameters and
calculation constants user programmable. (See Section 5 entitled "Calibration" for
information on programming.) All parameters and constants are stored in a non-
volatile memory which retains data without battery backup for a minimum of 10
years.
A block diagram of the instrument is shown below.
Pulse Input
Signal
Common
RS232/422
Output
DC Input Power
DC Power Ground
DC Power Output to Sensors
Models 414D
& 414B
RS232/422
Option
Relays
EOB
110/220V
AC Mains
Control
Relay Outputs (2)
Pulse
Output
Flow Alarm