1
I. Introduction
DS822-P8M (4821) is a split programmable weighing controller connected with
digital sensors. The host is installed with standard guide rail, which can be
directly connected to the touch screen as man-machine interface, or connected
to the display panel produced by our company. This controller has the
characteristics of multifunction, high precision, high reliability and user
programmability.
Figure 1.1 Physical drawing of main engine and man-machine interface
accessories
Hardware resources and functions
(1) 6 common switch input points, which can receive the following signals:
Passive switch, button, relay output
Or NPN PNP transistor switch input
DC voltage signal, voltage range 6-24V
(2) 8 relay outputs, contact capacity: AC220V,5A or DC30V,5A
(3) 2-channel OC gate output, (outa, outb corresponding to output 6 and 7)
(4) Two channels of 4-20mA analog output and one channel of 4-20mA analog input
(5) 1 USB interface
(6) Communication interface
RS232 / RS485 can be connected to one channel of RS485 signal.It can be
used to communicate with computer, PLC, etc
Serial port 2: RS232 interface communication mode can be programmed
(7) 1 channel large screen output interface (multiplexed with OC gate output port
outb, only one function can be selected at the same time)
It can connect 1 to 2 large screen displays produced by our company
(8) Flexible and reliable programmable function, adapt to a variety of
applications, users can carry out secondary programming, can be easily
completed
At the same time, it can protect users' intellectual property rights
(9) Top song digital sensor interface, can connect 63 digital sensors, automatic
addressing
Main performance indicators
(1) Power supply voltage:
Wide voltage AC100-240V, 50-60Hz
(8) Service temperature:
-10
℃~
40
℃
(3) Storage and transportation temperature:
-65
℃~
+150
℃
(4) Relative humidity:
﹤
90%
(5) Number of sensors connected: Top song digital protocol sensors, up to 63