Orbit OC 7520, Owner'S Manual

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5
Programmable Display for BCD parallel Data Ports
OC7520
6 Digit Display
Monitor for BCD parallel Data
BCD Data to RS232/RS485 Output
BCD Data to Analogue Output
Four Set Points
Data Bus operation up to 63 Units
Orbit Controls OC7520 is a programmable display for connection to parallel BCD data
ports. It is designed as a remote display for digital meters, programmable controllers,
printers etc. In the measuring mode the 6 digit display shows the data from the port. In the
programming mode the display shows the parameters.
By using the RS Option card, OC7520 can very simply convert the BCD parallel input data
into RS232/RS485 serial data output. The serial port parameters such as the Number of
Digits, Display Resolution, Baud Rate, Address, Continuous or Request Transmission and
the Termination of the data string can be programmed from the keyboard.
Analog Output is an option, which permits generation of 0/4…20mA or 0 …±10V from the
BCD parallel input data shown at the display. The output of 12 bits (4096 increments) can
be free assigned to any two display values. The Analog Output is isolated from the Inputs
and the supply.
Four Set Points can be programmed within the entire display range 0 ...
±
999999. They
activate four open collector NPN transistors or four mechanical relays.
The keyboard at the front permits the entry into the menu, setting of RS232 and Analogue
Output parameters as well as setting of the Set Points.
The menu contains 6 digits offset free adjustable which permits the data from the Bus to
be added or subtracted from the offset.
The display intensity can be adjusted in 7 steps with the keys UP or DOWN.
Isolated excitation for supplying of external sensors is available. The parameters are
stored in internal memory also when the power is switched-off. The instrument is supplied
from the mains or from DC voltage and is suitable for panel mount.