Da-Lite SCB-200 User manual

INSTRUCTION BOOK FOR
Serial Control Board SCB200

2
Contents
Product Description........................................................................................................................................ 3
Speciications.......................................................................................................................................................... 3
Installation ..................................................................................................................................................................4
Optional Controllers (sold separately)...................................................................................... 7
Appendix A – Command Reference........................................................................................ 10

3
Product Description
Speciications
The SCB200 is an RS232 enabled serial controller for
Da-Lite motorized screens. This low voltage controller features
the basic operation of up / down and stop positioning of a
screen, and when factory installed in a Da-Lite screen, is capable
of advanced operation including Da-Lite’s proprietary Da-Lite
Screen Positioning System. Da-Lite Screen Positioning System
allows for precise positioning of a standard or multiple aspect
ratio screen based on the display requirements. Instead of simple
commands such as “up”, the SCB200 allows more sophisticated
commands, such as “go to 55 inches down”. By storing these
precise positions, a user can recall the preset by the press of
a button.
Additional detailed status information is available to determine
proper screen operation. For example, the AC current drawn
by the screen may be polled to determine if it is operating within
its normal range.
The SCB200 is available as a factory-installed option in many
of Da-Lite’s electric screens. It is compatible with the following
Da-Lite options:
• IR200 infrared remote control and IR receiver for wireless
operation
• NET200 integrated Ethernet controller for network and Web
operation
• WC200 intelligent wall controller with IR receiver for in-room
operation
The SCB200 is also compatible with many RS232 enabled
control systems for integrated system control. A complete
command protocol is supplied in Appendix A for reference
by qualiied integrators.
I/O Ports:
2x RS232C ports
5v IR Interface (reserved for the IR200 infrared sensor)
12v IR Interface (reserved for the WC200 wall controller or
aftermarket IR sensor)
RS485 bus (Used to daisy chain multiple SCB200 screen
controllers)
Termination type: Captive Screw Terminals
Power Requirements: 100120 VAC or 220240 VAC, 50
or 60 Hz
PLEASE NOTE: Voltage must be speciied at time of order.
Improper voltage connection will result in SCB200 damage.
Fused protection: 5A (fast, 250 volts)
Optional Accessories:
NET200 Ethernet Controller
WC200 Wall Controller
IR200 Infrared Sensor
RM200 Infrared Remote Control
PLEASE NOTE: While Serial Controller Boards can used to daisy
chain multiple Da-Lite Screens, it is not designed to be a pass-
through for RS232 or RS486 communication for other
manufacturers products.

4
Installation
WARNING: This product possesses high voltage when
connected, and may present a shock hazard when the screen
cover is removed. Please disconnect power when installing
or servicing.
The SCB200 is installed as a factory option when ordering
the compatible screen from Da-Lite. This is necessary because of
tight integration between the SCB200 and sensors that are used
to detect the position of the screen at any time during operation.
The SCB200 is factory calibrated based on the mechanical limit
switches in the screen motor. If it becomes necessary to adjust
the mechanical limit switches once the screen is installed, a
calibration procedure will be required to re-orient the SCB200
to this adjustment. Contact Da-Lite technical support for more
information on this procedure.
Each SCB200 may operate a single motor, and in the case of
multiple aspect ratio screens, which rely on multiple motors, or in
other specialized multi-screen applications, up to eight SCB200
controllers may be ganged together in a Master / Slave
coniguration for operation from a web browser or RS232
controller..
The following terminal connections are available on the SCB200:
Figure 1 - Serial / Bus / IR Connections
Terminal block 1 provides connections for RS232 controllers,
such as the optional WC- 200 wall controller, or an integrated
third-party control system. RTS / CTS connections are not
supported or required for operation. Since there are two RS232
ports on the SCB200, two independent RS232 controllers may
be used. Ports operate in the same fashion, and may be used
interchangeably. The port settings for both ports are ixed
conigurations, and used the following parameters:
Terminal block 2 provides an RS485 bus for connection
between the SCB200 devices when used in a master / slave
coniguration. When using multiple SCB200 devices, a 2-
conductor 24AWG shielded cable is connected between the SCB-
200 devices. Wire 1 is connected between RS485A and Wire 2 is
connected between RS485B.
In the event that more than two SCB200 devices are used, the
additional SCB200 devices may be connected in a daisy-chain
fashion to the other SCB200 devices.
PLEASE NOTE: When multiple SCB200 devices are used, the
RS232 ports and infrared ports on the MASTER SCB200 are
operational, and the optional NET200 may ONLY be installed
on the MASTER SCB200. Ports on SCB200 devices in SLAVE
coniguration are defeated. In this mode, all communication
originates with the MASTER SCB200 controller.
Terminal Block 1
1 RS232 #1 TX
2 RS232 #1 RX
3 RS232 #1 GND
4 RS232 #2 TX
5 RS232 #2 RX
6 RS232 #2 GND
Terminal Block 2
7 RS485 A
8 RS485 B
9 GND
10 IR In
11 +12vDC
12 GND
9600 Band
8 Bit
1 Stop Bit
No Parity
Full duplex mode
Flow Control = None

5
Power connections are made to the high voltage terminals
available on the SCB200. Please note that voltage must be
speciied at time of order. Improper voltage connection will
result in SCB200 damage. This termination should only
be performed by a licensed electrician.
Figure 2 - Power Connector
Installation (Continued)
The SCB200 is designed for automatic coniguration and has
a factory calibrate mode that “learns” the screen’s mechanical
limits and stores them in non-volatile memory, so that in the
event of power loss or disconnection, the calibrated settings are
retained. In the event that the screen mechanical stops are
adjusted or other mechanical alterations are made to the screen,
the factory calibrate mode must be performed again. A screen
must be conigured to “Master” if calibration is required for the
screen. SLAVED screens cannot be calibrated through the
master screen. The WC200 wall controller cannot recalibrate a
screen. Contact Da-Lite technical support for more information
on this procedure.
* Please note that DIP 1 should be in the “1” position for SCB200
devices at each end of the daisy-chain. DIP 1 should be in the “0”
position for all remaining (intermediary) SCB200 devices. A
single Master screen will be set to 0000.
Coniguration
The SCB200 comes pre-conigured in MASTER mode,
meaning that it is intended to be used without connection to
other SCB200 devices. If multiple SCB200 are planned for use
in a coniguration, each must posses an independent RS485
address. To change the address, DIP switches are provided on
the SCB200. Up to eight SCB200 devices may be ganged
together and independently addressed. Please reference the
following DIP switch table for addressing each unit.
Mode 1 2 3 4
Master * 0 0 0
Slave 1 * 0 0 1
Slave 2 * 0 1 0
Slave 3 * 0 1 1
Slave 4 * 1 0 0
Slave 5 * 1 0 1
Slave 6 * 1 1 0
Slave 7 * 1 1 1
Figure 3 - Address DIP Switches